In what season are walnuts on the market?

Seven dozen walnuts, eight dozen pears and persimmons in September all have red skins. These are all lunar calendars. Walnuts ripen in July of the lunar calendar. Walnuts are on the market at this time, and most people in rural areas know it. Let's wait until July to buy them.

Growth habit

Walnut likes light, cold resistance, drought resistance and disease resistance, adapts to the growth of various soils, and likes fertile and humid sandy loam, water, fertilizer and sunshine. At the same time, the requirements for water and fertilizer are not strict, and it is not suitable for pruning after defoliation and before germination, which is easy to cause bleeding. Suitable for most land growth. Calcareous soil is common in deep soil on both sides of the valley.

Extended data:

morphological character

Generally, it is as high as 3-5 meters, with grayish white bark, shallow longitudinal crack, flaky pith and thin tips of young branches (2-year-old branches are often hairless). There are also 20-25 meters high, with shorter trunks and wider crowns than other species. Bark is grayish green when young, grayish white when old, and shallow longitudinally. Branchlets glabrous, shiny, peltate glands, grayish green, and later brownish.

The pinnate compound leaves are 25 ~ 50 cm long, with 5 ~ 9 leaflets and rare 13 leaflets. Oval-ovoid to ovoid, terminal leaflets are usually larger, 5 ~15cm long and 3 ~ 6cm wide, with acute or acuminate apex, rounded or wedge-shaped base and sometimes heart-shaped. Entire or with inconspicuous blunt teeth, the surface is dark green, hairless, the back is only slightly hairy at the axils of veins, the petiole is extremely short or absent, and some shells are hard and some are soft.

Odd pinnate compound leaves are 25-30 cm long. When young, petioles and leaf axes are usually covered by extremely short glandular hairs and lobules, usually with 5-9 lobules, oval to oblong, about 6- 15 cm long and about 3-6 cm wide. The tip is blunt or sharp, short and tapering, the base is skewed and nearly round, the edge is full or there are sparse serrations on young trees. Lateral veins 1 1- 15 pairs, with tufted pubescence in axils, petioles of lateral leaflets are extremely short or nearly sessile, smaller ones are born at the lower end, and petioles of terminal leaflets are about 3-6 cm long. ?

The male inflorescence is 5 ~ 10 cm long, the male flower has 6 ~ 30 stamens, the calyx is 3-lobed, the female flower has 1 ~ 3 flowers, and the style is 2-lobed and reddish.

Flowering in May, with drooping male flower heads, about 5 5- 10/0cm long and as thin as15cm. Bracts, bracteoles and perianth segments of male flowers have glandular hairs. Stamens 6-30, anthers yellow, glabrous. A female spike usually has 1-3(-4) female flowers. The involucre of female flowers is short glandular hairy, and the stigma is light green.

The fruit is oval, about 5 cm in diameter and grayish green. When I was young, I had glandular hair, but when I was old, I lost it. The inner nut is spherical and yellowish brown with irregular grooves on the surface.

Short fruit sequence, 1-3 fruit; The fruit is subglobose, 4-6 cm in diameter and glabrous. The stone is slightly wrinkled, with two longitudinal sides and a short tip. The diaphragm is very thin and there is no gap inside. The endocarp wall has irregular gaps or no gaps, only wrinkles. Walnut shell is endocarp, exocarp and endocarp are cyan when immature, and fall off after maturity. The seed coat of the new walnut is bitter.

References:

Walnut (Juglandaceae) _ Baidu Encyclopedia