Citrus species are those?

Introduction of citrus varieties Citrus Citrus is a plant of the Citrus subfamily of the Rutaceae family Citrus, the most important in the production of the genus Citrus. It is a small evergreen tree, simple compound leaves, in addition to citrus, leaves with leaf wings, fruit 8 - 18 ventricles, each ventricle has 4-8 ovules, now the production of orange, mandarin, tangerine, grapefruit and its hybrid progeny (strains). Citrus is one of the most cultivated fruit trees in the world, China is the world's largest citrus cultivation, but not the first strong country. In the past, citrus has made great achievements for farmers to get rid of poverty and become rich, and now citrus is still the focus of rural industrial restructuring and special economic construction. After joining the WTO, we should speed up the strategic internal restructuring of citrus and optimize the industrial structure and regional layout. Promote the standardization of citrus production, product quality, so that China's citrus industry based on the domestic market, and actively expand the international market. Make full use of the rich citrus seed resources to produce famous, special and excellent fruit products, and make the citrus industry bigger and stronger, upgrading and upgrading. In order to change the current irrational variety structure, aging and mixed varieties, the use of excellent new varieties, the slow pace of the promotion of high-quality commercial fruit base is small, small production, short supply, most of the decline in the income of fruit growers and other status quo, it is necessary to speed up the pace of varietal structural adjustment and efforts to accelerate the promotion of the use of excellent new varieties, make full use of the WTO allows the policy to strengthen and improve the system of support for agriculture and farmers to increase their income, the use of good quality, high quality, good citrus seed resources to produce famous, special, and excellent fruit. Utilizing citrus varieties of good quality, high yield, improve the ecological environment, good benefits and other advantages to speed up the scale of development, in order to adapt to the domestic and foreign markets of citrus consumption varieties of annual and diversified requirements, revitalize the citrus in the farmers to increase their income and wealth on the wind. To this end, the Institute, thinking of what the farmers think and anxious about the farmers' urgency, seized the opportunity to spend a great deal of effort to introduce a number of the latest citrus varieties from home and abroad, and according to the ripening period of matching, and also to the processing and storage of the anniversary of the supply of the requirements of the market, from which the following citrus varieties are screened out and will be provided to the first to seize the first opportunity to select the choice of the market. The following citrus varieties: First, the country has not yet been developed on a large scale in the production, but by the cultivation of my observation in recent years, its excellent traits, market prospects attractive, such as the king of citrus - - - Tiangao. Secondly, the domestic production of cultivation in a very small number of areas to start, but the area is very small, favored by consumers of mixed citrus orange grapefruit - Nova, the king of blood orange - Taroko blood orange new line. Thirdly, some well-known valuable varieties due to a variety of reasons failed to form a large-scale and the market is in short supply in urgent need of development, such as touch citrus varieties. Fourth, with special traits, with the increase in the level of consumption and demand, but the existing production is far from meeting the market demand, such as lemons and so on. These varieties are recommended for dense planting, general management level can be mu planted 111-222 plants, high management level can be used in high density or high density (mu planted 333 - 666 plants) for economic cultivation, in the planting 3 - 5 that is to obtain a good return. The technical points of citrus management are shown in the technical information of this institute. The general principle is: buy seedlings from non-infected areas, strict quarantine, strong seedlings, root system is more complete, purchased from the regular units; deep tilling and soil ripening soil; planting sufficient water to ensure the survival of the planting; the first 1-2 years of fertilizer and water integrated management of pests and diseases, to promote and control the combination of the focus on the protection of the leaves to protect the flowers and fruits, and to promote the early knot and abundant production; the production period of the sparse combination of the combination of the protection of the production of high-grade and high-quality fruits as the goal In addition, according to the requirements of pollution-free fruit production and management, some varieties can be bagged, etc., in order to produce green fruit, enhance the quality of China's citrus industry, and make efforts to build a strong citrus country. (A) mixed citrus - the future development of citrus industry leading varieties Mixed citrus is mainly orange and orange, orange and grapefruit hybrid offspring, hybridization has artificial hybridization and natural hybridization. This information is mainly the offspring of artificial hybridization, mainly medium- and late-maturing varieties. The hybrid citrus has both sweet orange, tangerine (mandarin) and pomelo's nutrition, flavor and peel easy to peel, easy to eat, fresh food and processing characteristics. Because of the short time of the introduction of new varieties of mandarin orange, the world has not yet a large number of development, China is no exception, and its market potential is huge, is regarded as the 21st century to promote the main varieties. Because of its beautiful fruit shape, superior quality, early results, good yield and stable production for the majority of growers and consumers welcome. 21st century the world and the development of China's citrus industry, mixed citrus will become one of the important varieties chosen. Now we recommend the excellent new varieties with good traits and easy cultivation as follows: 1. Kasumi In 1979, Japan crossed Kasumi with Citrus F-2432 and introduced it into our country for trial planting in 1999. The tree is strong and vigorous. The tree posture is upright, the branching angle is small, the branching rate is high, the branching force is strong, and there are no thorns; the leaf blade is long oval, and the leaf surface is rich in waxy luster. The tree, branches and leaves are similar to those of Fork Citrus. Fruit high oblate-orbicular or inverted broadly ovoid, fruit large, general single fruit weight 230g, large up to 460g, the base of the short neck with or without, the top broadly rounded, the top broadly concave; fruit surface is smooth, deep orange, rich in luster, the oil cell is small and dense, protruding; pericarp is thin, wrapped more tightly, peeling is easier; pulp deep orange, texture crispy and tender and leafy, the capsule wall is thin, polarized dregs, the wind and leaves are thick and rich in soluble solids 12% -13%. General non-nuclear, and other nuclear varieties of mixed state nuclear, excellent quality. Chongqing area fruit coloring in late October, mid to late December maturity. Fruit storage resistance, with conventional treatment plus fresh bag packaging, can be stored for more than 100 days. Spring see with high fruiting rate, strong productivity, pay attention to fruit thinning, to ensure that the fruit is large and high quality. Kasumi has strong resistance to ulcer and decline disease. Wherever wide-skinned oranges can be planted, they can be planted. It is suitable for cultivation in patches, and mixing with seeded varieties will increase seeds. This variety is currently one of the most promising varieties of citrus. 2, the king of citrus - grass introduced from Japan, will occupy the market of high-grade citrus fruits in the next 10 years, is the leading goose of the wave of citrus industrialization and upgrading, with great market development potential. Its outstanding characteristics: First, the ripening period in December in the middle and late, just in time for the New Year's Day, the Spring Festival two major festivals, the sales trend is excellent; - is the fruit neat and beautiful, oblate spherical, smooth appearance, bright as waxed, orange-red rind, a single fruit weight of 200g, the largest up to 500g; third is the flavor of the good, tender fruit flesh, juicy, slagging, containing soluble solids of 12% or so; fourth is the productivity of strong, the planting of the second year can be Fruiting test flowers in the second year of planting, good yields and stable production; Fifth, with a sweet orange flavor and wide-skinned citrus easy peeling characteristics. Cultivation Notes: Tiancao cultivated in warm land, quality and flavor is better; strong unisexual fruiting, no nucleus, but with other seed varieties will also have nucleus, should be avoided with nuclear varieties mixed planting. Young trees with too much fruit will cause tree weakness, should pay attention to fruit thinning. 3, very high development potential of the late ripe citrus varieties - do not know the fire from Japan's new introduction of the Kiyomi and in the wild No. 3 touch citrus cross-breeding one of the most excellent species. The variety of strong disease resistance, Hovenia rootstock on the tree is weak, with sweet orange or red orange as rootstock or Hovenia base rootstock, sweet orange, Wenzhou mandarin orange for the intermediate rootstock tree potential moderate. Young trees are more upright, more open after the results, branch tips dense, fine, short, slightly smaller leaves and touch citrus similar. Drupe-free fruit rate is very high, productive, single fruit weight 200-300g, fruit inverted egg or oblate spherical, fruit peduncle more than a short protruding neck, no neck of the top of the flattened fruit more umbilical. Fruit skin yellow-orange, maturity February to March, stay on the tree the longer, the higher the sugar level, the juice cells and flesh the softer, the better the flavor, taste extremely sweet. When ripe, the skin is slightly thick, slightly coarse, easy to peel, touch citrus flavor, fruit containing soluble solids 14% -15%, high up to 16%, acid content of 1 g / 100 ml or so. The flesh is orange-red, soft and juicy. The capsule wall is thin and soft, with excellent flavor, which is one of the important late-maturing superior new varieties recommended for development. Cultivation Note: I don't know the fire adaptability, suitable for planting a wide range of areas, the requirements of the average annual temperature of 16.5c or more, ripe before the harvest -3c low temperature lasts a short period of time in the region, especially suitable for the winter without severe cold in the middle of the south subtropical climate zone cultivation. In 1984, Japan used the progeny of the cross between Kiyomi and Cohen orange and then crossed with the Mercator orange orange hybridization. Tree potential medium, young trees slightly upright, into the fruiting period tends to open; fruit flat round, oil cell fine, smooth fruit surface, color orange to orange-red, thin peel, easy to peel, does not occur floating skin; pulp orange-red, soft and juicy, fragrant, thin capsule wall, soluble solids 13.5% -15%, acid content of about 1 g / 100 ml, seeds 3 or less, quality is excellent; the fruit of the next year, the next year, the middle of the month to the beginning of February to mature The fruit is resistant to storage, with good and stable productivity. Seto incense adaptability is wide, suitable for cultivation in the central and southern subtropical climate zone, is one of the current promotion of late ripening varieties of mixed citrus. Cultivation notes: fruit hanging tree over winter, the most suitable winter without severe cold, heat conditions in the region, and pay attention to the relative concentration of piece planting. 5, the fragrance of Japan in 1974 with the Enke orange and sweet orange hybridization breeding. 1996 officially named Tianxiang, and to "mandarin orange agricultural forest 13" registration. Medium tree strength, tree posture open, slightly pendulous branches, branch tips dense, fine, short, no thorns, slender leaves; single fruit weight 200-250g, fruit oblate, fruit pedicels prominent, orange peel, easy to peel, smooth fruit surface; sweet orange flavor, orange flesh, thin capsule wall, soft and juicy, containing soluble solids 12% -13%, the fruit ripened from late December to early January, no kernel. No kernel. Cultivation Notes: good early productivity, planting or high catch can be early results, young trees should not be too many results, so as to avoid early decline in tree strength; because of good productivity, appropriate fruit thinning; suitable for cultivation in the winter warm in the central and southern subtropical climate. 6, Nanxiang Japan Agricultural and Water Province Horticultural Experiment Station Kurume sub-field mouth of the Tsu Experiment Station in 1970 to Sanbao early born Wenzhou mandarin orange and Kerry Maidin red orange hybridization breeding. The average single fruit weight is about 130g. The shape of the fruit is high and oblate, and the skin of the fruit is dark orange, and the oil cells are slightly large. The top of the fruit protrudes with a small umbilicus, thin rind, and flesh densely, peeling is slightly more difficult than Wenzhou mandarin, not floating skin. Fruit orange-red, thin capsule wall, can be eaten with the pulp, flesh slightly coarse, but if after maturation cultivation becomes soft and juicy. soluble solids in early December reached 13% -14%. Fruit ripening in mid- to late December, strong unisexual fruiting, no nucleus. Cultivation Notes: Because of the strong yield, attention should be paid to fruit thinning; winter temperatures lower production areas planted easy to fall, should be selected in the soil is fertile and sheltered from the wind place to plant. 7, Kiyomi orange orange - citrus queen recently introduced late orange orange variety. This variety of tree strength in the middle, young trees upright, open after the results, branch tips long and thin, easy to droop, leaf blade medium large. Leaf margin undulate, unisexual fruiting power, no nucleus. Fruit compressed spherical, single fruit weight 200-300g, more neat, yellow-orange fruit surface, smoother, slightly more difficult to peel the skin than Wenzhou mandarin orange, orange flesh, soft and juicy flesh, thin capsule wall, containing 11% -12% sugar, with a sweet orange aroma, good flavor. Fruit in mid- and late December began to color, the end of February to early March ripe, can be left until April harvest. Kiyomi is a fruitful and stable, high-quality late-maturing orange seed, because of its peeling easy, soft and juicy flesh, in March-April (stored fruit can be supplied to the May-June) fruit off-season market, is the current citrus varieties structural adjustment in the first choice of one of the important varieties. Cultivation Notes: Kiyomi has a high proportion of leafy flowers and good fruiting, but too much fruiting will lead to alternate year fruiting, and attention should be paid to fruit thinning. 8, Nova - citrus new ink potential unlimited originated in the United States, the Department of Kerry Maidin red orange and Orlando orange grapefruit hybridization. In recent years in the domestic promotion. Fruit oblate, medium large, orange-red rind, beautiful appearance, bright color, smooth, thin rind, not too easy to peel, but peeling oil spill less, peeling out of the capsule petals clean; pulp deep orange, juicy, crisp flesh, rich flavor, excellent quality, soluble solids content 11% -12%; fruit ripening began in late November, more resistant to storage and transportation, storage to the next year, the month of heavy, the quality is still good. Planted 2-3 years that flowering and fruiting, productive and stable yield. Nova cultivated alone without nucleus, is the current promotion of superior new varieties. Cultivation notes: it is appropriate to cultivate alone into a piece, drought will lead to pulp granulation, early should be timely irrigation. 9, Tsu's fragrance Japanese Ministry of Agriculture and Water Horticultural Experiment Station Kurume branch of the mouth of the Tsu Experiment Station, in 1972 with the Kiyomi and Xingjin early cross-breeding. 1978 began to bear fruit, was named in 1990, 1991 seedling registration, I recently introduced. Tree strength medium, open, tree characteristics and Kiyomi similar, leaf margin slightly undulate, branch without thorns; fruit shape than the Kiyomi flattened, single fruit weight of 160-200g, orange fruit surface, smooth and beautiful, thin peel, easy to peel; sac wall is thin, the flesh is soft and juicy, sugar content is high, with a sweet orange aroma, the fruit is completely colored in December, mature in late March. Unisexual fruiting is strong, the fruit has no kernel, even if there are other varieties of pollination, the seed is also very little. The variety is adaptable, suitable for cultivation in the central and southern subtropical climate zone, can be planted in moderation. Cultivation notes: because the fruit hangs over the winter, the best in the winter without severe cold in the area of cultivation, because the tree is weaker than the clear see, it is best to strong anvil (such as large leaves and large flowers Hovenia) as rootstock. 10, Yang Xiang 1972, Japan's Ministry of Agriculture and Water Horticultural Experiment Station Kurume branch of the Kuchinotsu Experiment Station with the clear see and in the field of No. 3 touch citrus hybrid breeding. 1978 began to fruit, after several years of primary selection, in 1984 to the mouth of the Jin 10 for the test material for the fifth variety of adaptability, genetic identification tests, in 1995 to the name of the variety and registration. Our country has been introduced to test planting. This variety of Hovenia as rootstock tree is weak, to flat orange as rootstock tree is medium. Young tree posture is more upright, adult fruiting trees open but slightly drooping branches, branch tips dense and short, small leaves. Fruit shape flat, usually with a fruit neck, single fruit weight 250-300g, orange peel; mid-December fully colored, smooth fruit surface, orange-red flesh, pulp juicy, thin capsule wall, soluble solids up to 12% -13%, acid 0.9-1.1 g / 100 ml, with the touch of citrus aroma; fruit ripening the following year in January-February, if continue to stay in the tree will be a mild floating skin, the fruit is less nuclear or no nuclear. This variety is suitable for planting in the middle and south subtropical climate zones where there is no frost damage in winter. Cultivation Notes: Because of the weak rootstock tree with Hovenia, available red orange as rootstock or to strengthen the fertilizer management, enhance the tree; due to the strong branching force of Yangxiang, branch tips are weak, small leaves, should be timely centering to promote strength. (B) Wenzhou mandarin orange 1, Ri Nan 1 belongs to the special precocious Wenzhou mandarin orange. From Japan's Miyazaki Prefecture, Nichinan City, Wild Akio planted Xingjin early birth Wenzhou mandarin orange selected in 1997 to Nichinan No. 1 variety name registration. Nichinan heavy Wenzhou mandarin orange tree strong, branches and leaves are not too dense, long internodes, large leaves, tree posture like ordinary Wenzhou mandarin orange. After entering the fruiting period, the tree is not weak. Good productivity, leafy flowers, new shoots draw a reasonable proportion, the results are not obvious every other year. Rinan straight Wenzhou mandarin fruit size neat, smooth fruit surface, single fruit weight of about 120g. Earlier than the Miyamoto special precocious Wenzhou mandarin orange maturity. Fruit coloring began in mid-September, October, the middle of the full coloring. Fruit capsule wall thin, good flavor, less floating skin. In the first 1-2 years of the beginning of the fruit, the fruit shape is extremely flat, 3-4 years after the beginning of the transformation to the high waist shape. The juice contains about 10% soluble solids, and the acid content is less than 1g/100ml. Rinan 1 wide adaptability, good productivity, good quality, is currently one of the most development potential of very early maturity Wenzhou mandarin orange. 2, under the mountain red under the mountain red Wenzhou mandarin orange originated in Japan, the early 1990s introduced, through 10 years of observation and identification, the varieties show early results, early maturity, high quality and yield, especially the red colorful fruit surface, in Wenzhou mandarin orange in a unique. Fruit shape flat round, longitudinal diameter 5cm, horizontal diameter 7cm, single fruit weight of 130g or so, smooth, bright fruit surface, soluble solids content of 11.7%, acid content of 0.4 g / 100 ml, edible rate of 68.5%, juicing rate of 58%, in early October began to color, orange-yellow pericarp, and then gradually deepen in late October to show red, very beautiful, orange-red flesh, no nucleus, dregs, juice, strong taste. It is very beautiful, with orange-red flesh, no kernel, dregs, juicy, and strong flavor. Shanxia Hong is the early maturity Wenzhou mandarin orange variety which is popularized and developed at present. (Ponkan 1, the king of ponkan - Taiwan ponkan Introduced from Taiwan in 1996, the tree is strong. The tree crown is upright, with strong productivity, large fruit, high pile, average single fruit weight 180g, maximum 300g, containing soluble solids 4.4%. Seeds are few, 4-5, the skin and flesh are orange-red, the flesh is tender and dregs, and the flavor is strong and sweet. General year in January maturity, resistance to storage and transportation, leaving the tree storage, better flavor. This variety has strong adaptability, early flowering and early fruiting, high fruiting rate, large fruit size, high pile, very few seeds, high soluble solids, excellent quality, known as the "king of ponkan", and is the first choice for the development of ponkan. 2、Ota ponkan Ota ponkan is native to Japan. It was introduced in the middle of 1980s, and was bred and popularized as an early ripening ponkan in the middle of 1990s. Ponkan Ota weighs 130-150 g. The skin of the fruit is orange-yellow and smooth, and the shape of the fruit is flat and round or high pile flat and round. Fruit soluble solids weight 0.5%-11.5%. Acid content of 0.4 g / 100 ml, edible rate of 75% or more, in early October began to color, mid-November completely coloring maturity. Fruit seed less, 5-6, good quality, is currently promoting one of the important varieties. (D) sweet orange class 1, red flesh navel orange red flesh navel orange, also known as caracara (caracara) navel orange, selected for Peru, Washington navel orange bud change. This variety of tree is strong, open, big branches thick and long and phi hanging. Leaf blades occasionally have a slight mottled leaf phenomenon, branchlets tip of the formation layer often show light red. Fruit orbicular or oval, generally closed umbilicus, the average single fruit weight 200g, the most prominent trait is the red carotene present in the juice cell wall, although the pulp is uniform pink to red, but the juice is still orange, with a special flavor, excellent quality, very suitable for fruit salad or, platter. Soluble solids content of 13.3%, good early fruiting, planting two years began to flower, three years have a certain yield, the fruit matured in early December. It is the only new red flesh variety of navel orange class at present. In part of the cumulative temperature and light conditions in the area of good test planting, fruit obviously have a tendency to increase. Cultivation attention to flower and fruit. 2, Fukumoto navel orange Originally from Wakayama County, Japan, for the Washington navel orange branch change, known for its deep red fruit color, also known as "Fukumoto red navel orange". Tree strength is medium, the tree posture is more open, the crown is medium large, round head shape, the branches are thicker and sparse, the leaf blade is long elliptic, larger and thicker. Fruit larger, single fruit weight 200-250g, short oval or spherical, fruit top rounded, more closed umbilical cord, fruit stalks around the obvious short radial grooves, fruit surface smooth, red-orange, peel medium thick, easier to peel; meat crisp and juicy, soluble solids 12.5% -13%, acid content of 0.5-0.6 g / 100 ml, sweet and sour, rich in Aroma, no nucleus, excellent quality, fruit ripening in mid to late November, yield in the upper. Fuben navel orange ripe early, smooth fruit surface, color deep and gorgeous, excellent appearance and inner quality favored by consumers. Cultivation Notes: Fukumoto navel orange is planted in areas with sufficient light, big temperature difference between day and night, and drier areas, with good performance of traits, and vice versa, a little worse. Fubon navel orange tree body is small, cultivation can be appropriate dense planting. 3, the king of blood oranges - Taroko blood orange new line The variety from the Taroko blood orange pearl heart line progeny selected and bred. The tree is strong, thick branches and large leaves, thorny, moderate tree yield, stable yield, weak branch results. Fruit obovate or short ellipsoid, fruit pedicel has obvious grooves, single fruit weight 200-250g, for the blood orange in the largest crystalline system, fruit skin special smooth, when ripe skin and flesh blood red. The fruit is generally ripe in late January, because the appearance is extremely beautiful, catering to the Chinese people's happy days like red habits, coupled with the pulp is tender and dregs, juicy and sweet flavor, strong aroma, soluble solids 12% -13%, large fruit without nucleus, with a very strong market competitiveness. The new line of Taroko blood orange is rich in nutrients, very suitable for fresh food, the juice is rich in vitamin E, p-carotene, anthocyanin glycosides and flavonoids and other polyphenolic compounds, with antioxidant, prevention of cardiovascular disease and inhibit the occurrence of cancer and other physiological effects. As a late-maturing sweet orange, it is an important and excellent variety that is currently being promoted. Cultivation Notes: Taroko blood orange new line, young trees grow more prosperous, when there is a certain amount of branches and leaves, that should control its growth, and promote its early results. 4, Pear Orange Pear Orange is the Chongqing Fruit Tree Research Institute and other units elected by the new sweet orange variety, because its fruit is more pear-shaped and named. The variety in 2000 through the Chongqing Municipal Crop Variety Validation Committee validation, in 2001 was named the third China International Agricultural Expo brand-name products and Chongqing Municipal brand-name agricultural products. Fruit large, beautiful appearance, the average single fruit weight 200-220g, the largest up to 3.50g, orange-red or deep orange peel, fruit shape unique pear-shaped or obovate; internal quality is excellent, the fruit flavor is strong and sweet, acidity is slightly lower than the Jin orange, slightly fragrant, the flesh is crisp and tender dregs, flavor like navel orange, edible rate of 74.6%, containing soluble solids 11.8%, acid content 0.8 g / 100 ml, fewer seeds, single-fruit average seed 1.8, market competitiveness, fruit selling price is high, the average selling price per kilogram is higher than ordinary orange more than 50%. Under normal management conditions, pear orange planted two years after the test flowers and results, the third year into the early fruiting period, into the full production period per 666.7 square meters of output up to heavy 500kg or more. (E) pomelo 1, dwarf late pomelo - late pomelo new varieties dwarf late pomelo from the late white pomelo selected from the superior line. This variety of fruit shape is beautiful, flat round or short cylindrical, general fruit weight 2000g, the largest fruit weight 3600g, yellow, smooth skin. Flesh white, tender flesh, juicy dregs, sweet and sour and refreshing, the fruit is fully ripe with a strong aroma, no bitter flavor, top quality, juice containing soluble solids 11% -13.5%, few seeds, a few nuclear, excellent quality. Fruit ripening at the end of January and early February of the following year, very resistant to storage, at room temperature in plastic bags can be stored to 6-7 months, the variety of adaptability, resistance, resistance to disease and insect resistance. This variety compared with other pomelo varieties, has the following characteristics: First, the tree dwarf production early, is currently the production of the most dwarf pomelo varieties, the general height of adult plants is only about 2 meters, especially suitable for dense planting cultivation (acres planted 222), usually planted in the third year after the production of 50% of the tree. Secondly, the maturity is extremely late. General pomelo varieties of most of the maturity period is concentrated in November-December, but short late pomelo maturity in the second year of heavy - February, just in time for the Chinese New Year ripening on the market, the price is good and sellable. 2, official creek honey pomelo - the largest fruit sleeve varieties Originally from Pinghe County, Fujian, has more than 400 years of cultivation history, once known as the emperor tribute, is a traditional precious fruit, in 1989 was named the Ministry of Agriculture quality fruit crystal. Tree crown semicircular, more open, dense branches and leaves, especially strong and vigorous growth. ripe in late October. The fruit is inverted ovoid or broad conical, fruit color yellowish, fruit extra large, single fruit weight 2500g, large up to 5000g, is China's largest fruit type of pomelo. Fruit flesh light red, sweet and sour taste, dregs, taste aromatic, containing 12% soluble solids, edible rate of 58% -68%, acid content of 0.5-0.6 grams / 100 ml, excellent quality. Storage time is long and easy to produce granulation phenomenon. Cultivation Notes: The variety of adaptability, easy to cultivate, early results, good yield and stable yield, can not be mixed with other nuclear varieties, otherwise the performance of multi-seeded. 3, Strong Dre red grapefruit - U.S. honeydew hybrid breeding. Tree strength, branch tip long, phi pendant, fruit in the shape of large fruits, the average single fruit weight of l000g, smooth skin, glossy, skin medium thick, wrapped tightly, yellow, often light color pattern, fruit top flat round; less nuclear, red flesh, sweet and sour, crisp and tender dregs, no odor, juice, containing soluble solids 10.5%-11.5%, excellent quality, abundant yield, fully mature in late November, in September can be Eating, good storage. Strong Dele red grapefruit adaptability, easy to cultivate, early results, stable yield, good quality, is the current grapefruit varieties recommended for development in the structural adjustment of varieties. (F) other citrus 1. Eureka lemon Originally from the United States, China's Sichuan, Chongqing cultivated more, Guangdong, Guangxi, Fujian and Hainan are also a small number of cultivation, its main features: medium tree potential, open, scattered branches, scattered. Fruit ellipsoid to obovate, the average single fruit weight of about 150g. Apical papillae, pericarp yellowish, thicker and thicker. Fruit juice, aroma, acid content 6.0-7.5 g/100 ml, sugar content 1.48 g/100 ml, fruit ripening in mid- and late November. 2, Crispy kumquat Crispy kumquat is an excellent variety with stable traits selected from common kumquat. This variety has strong resistance to adversity, especially to citrus huanglong disease. Early knot yield, fruit ripening orange-yellow, young fruit dark green, single fruit weight 12-15g, the largest fruit weight more than 20g, the fruit is nearly spherical, the fruit skin is extremely smooth, oil cell sparse, the whole fruit with the skin to eat, fragrant, crisp and sweet, without the pungent pungent flavor of the common kumquat. The ripening period is from mid-November to early December. Crisp kumquat adaptability, various types of soil can be planted, but to sandy loam, loamy soil is good for the soil layer is deep, rich in organic matter content, loose and airy, drainage and irrigation water conditions are good, the water table is low, slightly acidic to neutral soil is more suitable. 3, Buddha's hand Buddha's hand is the rue family citrus evergreen fruit trees, because of its fruit shape like a human hand, so the name Buddha's hand. Buddha's hand for China's important traditional Chinese medicine and ornamental plants, to the fruit of human medicine, with the soothing of the liver and qi, and stomach and spleen, vomiting and phlegm, is the treatment of liver and stomach disease of the good medicine. In addition to medicinal use, it can also be extracted flavor, processed into Buddha's hand wine, Buddha's hand drinks, Buddha's hand to quit smoking candy and other health food, a large number of exports to Hong Kong, Macao, Southeast Asia, Japan, the United States and other countries and regions, while the domestic market demand is also very large, and year by year a substantial increase in the supply of products exceeds the demand. In addition, Buddha's hand bonsai is a kind of high-level ornamental plants, selling well in the market. Buddha's hand according to the size of the fruit is divided into three types, the cultivation of large fruit type and medium fruit type two. Buddha's hand fruit skin color golden, white and tender flesh, crispy dry sweet, and can be processed into Buddha's hand tea, Buddha's hand dew, Buddha's hand jelly and Buddha's hand fruit wine; flowers, young fruits and mature fruits can be used as medicine. Buddha's hand and divided into Jinhua Buddha's hand and wide Buddha's hand, which green skin for Jinhua Buddha's hand of the main varieties, the fruit is medium large, the average weight of a single fruit of 300g or so, the largest fruit up to 2000g, aroma is strong, top quality, very cold hardy. Wide Buddha hand average fruit weight 750-1000g, the largest up to 2200g, than the Jinhua Buddha hand fruit, planted the second year of production, productive period of fresh fruit mu yield 3000-4000 kg, cold resistance is very strong. Cultivation notes: in the average annual temperature of 16-22 ℃, annual rainfall of 1000-2000 mm, annual sunshine 1200-1600 hours, cumulative temperature of 5000-7000 ℃, the extreme low temperature is greater than -3 ℃, the coldest monthly average temperature of more than 6 ℃ are appropriate, but with a deep layer of soil, the more loose and fertile, moisturizing and fertilizer retention, PH value of 5.5-6.5 of slightly acidic Soil is the most suitable. Fruits can be colored in November in late November to fully turn color, can hang fruit to the following year in March. 4, four seasons of advanced fruits - cherry tangerine Cherry tangerine and ordinary citrus is different, it is a non-seasonal wild fruit hybridization. Crown dwarf, adaptable, not subject to climate, soil, geographic restrictions, can be planted in all seasons. Tree height of 50--70 centimeters is the fruiting period. From flowering to maturity 140 days, about 20 days earlier than ordinary citrus. Single fruit weight 80-100 grams, large fruit up to 460 grams, sugar content -.... -The sugar content is 14%, and the market price is high. 5, Australia citrus orange and orange hybrid, the source is not known. Tree strength medium, leaves like orange, medium maturity varieties, fruit medium to large fruits, fruit top broad, narrow base, deep orange-red peel, easy to peel, flesh brittle, tender, with a unique fragrance, productive. In addition to the above introduction of various types of citrus varieties, there are the following citrus available for planting and a small number of seedlings for trial planting, price negotiable. 1, West of the incense: (Kiyomi × Enke) × Marko more hybridization. Tree strength medium, single fruit weight 150g, fruit spherical, orange peel, peeling easy, have orange orange mixed flavor, no nuclear or less nuclear, heavy late February maturity. 2, Zhu see: clear see × seven three hybridization. Strong tree, single fruit weight of 180g or so, fruit shape short ovate, orange peel, fruit surface slightly thick; slow acid reduction, good flavor; maturity period at the end of December - the next year, the first half of the month. 3, large fruit orange orange: orange and orange hybrid, single fruit weight 200-300g, fruit oblate, color orange-red, thin skin. Fruits mature in mid-December. 4. Your daughter No. 14: Breeding by crossbreeding Enkel × Otani Iyokan. 5. Your daughter No.22: Breeding by crossbreeding Nanko × Encore.

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