Strawberry seedling method and time

Strawberry seedling methods include the method of dividing the former runners, the method of dividing new stems, and the method of tissue culture. Strawberry planting time is the following spring, or July-August.

A, strawberry seedling method

1, the former runner division method

Strawberry in the annual growth period will produce a large number of stolons. The use of seedlings on the stolon to cultivate seedlings is the stolon seedling method. Subplants on stolons usually grow 4-5 or more well-developed leaves from late July through early August and require 4-6 or more plants, at which time seedlings can be planted. This is the most important breeding method in production.

2, new stem division method

New stem division propagation is also known as piercing method. In the spring, each strawberry can send out several new stems. By the end of July and the end of August, each new stem can grow 4-5 leaves and a certain number of new roots, and then transplanted by dividing. The method involves digging up the entire strawberry, cutting off some of the senescent underground stems, and dividing into several new plants for colonization. This new stem-branching seedlings are a kind of perennial old stems, and the development results, the plants lack of vitality, so generally should not be used in this breeding method.

3, tissue culture method

Tissue culture is a modern method of large-scale production of virus-free original strawberry seedlings. Many developed countries have used this method for strawberry production. First, pure, virus-free original seedlings are cultivated, and then multi-stage breeding is carried out to produce a large number of seedlings for production.

Two, seedling time

Sowing seedling is mostly carried out in the following spring, but it can also be carried out in July-August of the year when the seeds are collected. Before sowing, prepare a good wide mouth clay tile pot, filled with fine nutrient soil, flattened, seeds soaked 8-12 hours in advance, to be swollen after sowing on the soil surface, and then evenly sifted through a sieve with a thickness of 0.2 cm or so of fine sandy soil cover.

In order to make the soil not only contains enough water, but also can keep loose, in order to facilitate the seed rooting and germination, can be sown after the clay tile pots placed in a shallow pool of water, until the water slowly seeped wet pots of soil and then take out, and then covered with plastic film, 10 days or so can be out of the seedling.

After the emergence of appropriate inter-seedling, when the seedlings grow 3-4 true leaves, with soil transplanted in a small pot. After a period of acclimatization, then transplant with soil to the propagation nursery.

Strawberry Morphological Characteristics

Perennial herb, 10-40 cm tall. Stems lower than leaves or nearly equal, densely open. Spreading yellow pilose. Leaves ternate, leaflets shortly petiolate, thicker texture, obovate or rhombic, sparsely orbicular, 3-7 cm long, 2-6 cm wide, apical part rounded, base broadly cuneate, lateral leaflets basally oblique, margins notched serrate, serrations extremely acute, dark green above, several glabrous, pale white-green below, sparsely hairy, denser along the veins; petiole 2-10 cm long, densely covered with open yellow hairs. Petiole 2-10 cm, densely spreading yellow pilose.

Strawberry flowers in cymes, 5-15-flowered, with a short-stalked leaflet below the inflorescence; flowers bisexual, 1.5-2 cm in diameter; sepals ovate, slightly longer than the epicalyx segments, epicalyx segments elliptic-lanceolate, entire, sparsely y bifid, fruit enlarged; petals white, suborbicular or obovate-elliptic, with an inconspicuous claw at base ; stamens 20, unequal; pistils very numerous.