Chemical anthericide for cabbage stalk and formulating method thereof

Abstract

The invention discloses a male sterilant used for head cabbage, and a preparation method thereof. The finished product of the prepared male sterilant used for the head cabbage contains tribenuron-methyl and gibberellin (GA3); and the preparation method comprises the following steps: the tribenuron-methyl solution and the gibberellin (GA3) solution are prepared, and then the tribenuron-methyl solution and the gibberellin (GA3) solution are evenly mixed and then are fixed on volume to obtain the finished product. The male sterilant has the effects of thorough male-killing, complete sterility of the stamen, normal growth and development of the plants and normal pollination of the insects; the crossing rate of the produced first generation of hybrid seeds reaches 100 percent; the preparation technique is simple, and the bath production is easy; when the maximum length of the flower bud of the main scape or the first-order branch of the plant of the cabbage is about 2 mm, the spraying period is selected, the whole plant is sprayed by a compression hand-held sprayer, and each plant is sprayed with 15 ml of working fluid.

Description

technical field [0001] The invention belongs to the technical field of plant breeding and relates to a chemical andricide, in particular to a chemical andricide for cabbage and a preparation method thereof. The invention can be applied to head cabbage to produce first-generation hybrid seeds by using inbred lines, so as to realize 100% hybridization rate of first-generation hybrid seeds. Background technique [0002] Among vegetable crops, cruciferous vegetables (heading cabbage, Chinese cabbage, radish, etc.) occupy a pivotal position, and the planting area of ​​cruciferous vegetables accounts for about half of the total vegetable planting area in the country. Cruciferous vegetables generally have obvious heterosis, and the excellent varieties used in production are almost all the first generation of hybrids. However, the production of first-generation hybrid seeds using self-incompatible lines is the main way for cruciferous vegetable seed production; although scientists ...

AI Technical Summary

Problems solved by technology

However, the production of first-generation hybrid seeds using self-incompatible lines is the main way for cruciferous vegetable seed production; although scientists are also researching and breeding cruciferous male sterile lines, it is also an ideal way to produce first-generation hybrid seeds Seed production method, but currently only a few crops are used, and the male sterility of most crops, especially head cabbage, has incomplete sterility, low temperature yellowing, petals do not open, low combining ability, etc. Many problems, can not be widely used in hybrid seed production

Utilize the self-incompatibility line seed production in current production, the main problem that exists is: the hybridization rate of the first generation hybrid seed of production reaches 95%, and the purity is low; The hybridization rate of the first-generation hybrid seeds produced has reached 100%

However, so far, there have been no reports on the development of special chemical andricides for head cabbage and the use of chemical andricides to produce first-generation seeds of hybrids

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