Fresh-eating leaf mustard high-yield seed production method

Abstract

The invention discloses a fresh-eating leaf mustard high-yield seed production method, and relates to the technical field of vegetable cross breeding. The fresh-eating leaf mustard high-yield seed production method comprises the following steps that S1, K6 is selected as a male parent plant and BKA is selected as a female parent plant, and wide-stem brassica juncea first-generation seed production is carried out; S2, when the male parent plant and the female parent plant grow to have two leaves and one core, first-time fertilizer application is carried out, and when the male parent plant and the female parent plant grow to have four leaves and one core, second-time fertilizer application is carried out; S3, when the female parent plant grows to have four leaves and one core, a 10 ppm uniconazole solution is sprayed once on the leaf surface of the female parent plant; S4, transplanting is carried out when the leaf age of the male parent plant and the female parent plant reaches 5-6 true leaves; and S5, topping is carried out when the female parent plants grow to the bolting period. Through male parent sowing time adjustment, proportioning fertilization, female parent density adjustment, topping and uniconazole treatment in the seedling stage, the number of branches of plants can be increased, the fruit setting rate can be increased, it is guaranteed that the flowering periods meet in time, and the seed production yield of fresh leaf mustard is increased; and meanwhile, the problem that plants are prone to lodging can be solved.

Description

technical field [0001] The invention relates to the technical field of vegetable hybrid breeding, in particular to a high-yield seed production method of fresh-eating leaf mustard. Background technique [0002] Brassica juncea var. latipa is a variety of Brassica juncea var. latipa leaf mustard vegetable, commonly known as bamboo shoots, green vegetables, and latipa, because of its wide and thick petioles and middle ribs, crisp texture Tender and loved by the world, it is the main raw material crop of the world-famous "Sichuan sour (pickled) vegetable", and it can also be used as a special fresh leafy mustard. According to Li Shizhen's "Compendium of Materia Medica", Qing Dynasty medical scientist Wang Shixiong's "Suixiju Diet Spectrum", and Southern Liang Dynasty Tao Hongjing's "Famous Doctors" records: mustard has the functions of removing heat, preventing rheumatism, benefiting the five internal organs, benefiting the lungs, and eliminating phlegm. It has medical value a...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the above-mentioned technical problems, and the purpose is to provide a high-yield seed production method of fresh-eating leafy mustard. The present invention adjusts the sowing date of the male parent, fertilizes in proportion, adjusts the density of the female parent, topping and uniconazole at the seedling stage. The treatment method can increase the seed production yield of mustard mustard by about 20%, and can dwarf the plants, so as to solve the problem that the plants are prone to lodging

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