Method for producing Chinese flowering cabbage hybrid seeds

Abstract

The invention discloses a method for producing Chinese flowering cabbage hybrid seeds, and belongs to the technical field of crossbreeding. The method for producing the Chinese flowering cabbage hybrid seeds comprises the following steps that a Chinese flowering cabbage male parent is sown in two stages, the Chinese flowering cabbage male parent in the first stage and a Chinese flowering cabbage female parent are sown at the same time, and the Chinese flowering cabbage male parent in the second stage is sown after the Chinese flowering cabbage male parent in the first stage is sown for 10-12 days. According to the method for producing the Chinese flowering cabbage hybrid seeds, the flowering phases of the male parent and the female parent of a Chinese flowering cabbage are relatively concentrated, concentrated pollination is facilitated, meanwhile, the number of bent burst and development atrophy of fruit pods is effectively reduced, complete development of the Chinese flowering cabbage seeds is effectively promoted, the quality and the germination rate of the Chinese flowering cabbage hybrid seeds are further improved, and a foundation is provided for planting and popularization of the Chinese flowering cabbage.

Description

technical field [0001] The invention relates to the technical field of hybrid breeding, in particular to a method for producing hybrid cabbage seeds. Background technique [0002] Caixin, also known as cabbage sprouts, is a Brassica genus of Brassicaceae, an annual or biennial herb, 30-50 cm high, all glabrous; stems are erect or ascending. Basal leaves are oblong or broadly ovate, 6-8 cm long, 2-3 cm wide, rounded at the top, entire, with wide midrib and prominent lateral veins; petiole white or green, 3-4.5 cm long, slightly Marginal; lower cauline leaves similar to basal leaves, broadly ovate, petioles without margins, not clasping; other cauline leaves ovate, lanceolate or narrowly oblong, all but top leaves have petioles and are not The stem is clasped, and others are similar to green vegetables. The sprouts are tender and ready for frying. Every 100 grams of fresh vegetables contains 94-95 grams of water, 0.72-1.08 grams of carbohydrates, 0.21-0.33 grams of total ni...

AI Technical Summary

Problems solved by technology

[0003] At present, the cabbage used in production is basically a conventional variety. Due to continuous cropping, climate change, mixed varieties, and poor resistance to disease and stress, it cannot meet the needs of production. Further research has found that hybrid cabbage can overcome the above shortcomings and significantly improve The yield and quality of Chinese cabbage, but due to the long flowering period of the female parent sterile line in the seed production process of hybrid Chinese cabbage, the pods are bent and burst or the pods are atrophic, and the seeds cannot be developed into complete seeds after pollination, resulting in hybrid Chinese cabbage. The yield of seed production is low, resulting in the poor application of hybrid Chinese cabbage

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