Breeding method of selfing lines of waxy corns and white waxy corns

Abstract

The invention discloses a breeding method of selfing lines of waxy corns and white waxy corns. A breeding method of the selfing line of the waxy corns comprise the following steps: hybridizing by taking one of a plurality of waxy corn species as a female parent, and the other waxy corn species as a male parent, so as to form a plurality of hybridized combinations; selecting one of the hybridized combinations, collecting pollen of the other hybridized combinations, and uniformly mixing at equal amount; pollinating the selected hybridized combination by using the uniformly mixed pollen, and thus obtaining a target hybrid seed of the pollen and the selected hybridized combinations; and carrying out selfing breeding on the target hybrid seed according to the preset target characters, and thus obtaining a stable waxy corn selfing line. In the breeding process, by increasing the step of selecting and remaining white grains, the breeding of the selfing line of the white waxy corns can be realized. Through hybridization and pollination by adopting the mixed pollen, excellent gene resources can be collected, so that the bred selfing line can adapt to various ecological forms, and has outstanding high temperature resistance and low temperature resistance, and strong disease resistance and stress resistance.

Description

technical field [0001] The invention relates to the technical field of plant breeding, in particular to a method for breeding waxy corn and white waxy corn inbred lines. Background technique [0002] With the improvement of people's living standards and the strengthening of health awareness, people have put forward new requirements for the types, nutritional components, appearance, color and health functions of fresh waxy corn products. Fresh and delicious waxy corn products are deeply loved by consumers due to their unique flavor, rich nutrition, health care and leisure. In addition, they are suitable for fresh-keeping processing and can be supplied year-round, and the market demand continues to expand. [0003] In addition, due to the short growth period of fresh waxy corn, relatively simple cultivation, and significant economic benefits, its cultivation area continues to expand. [0004] However, with the volatile climate in recent years, new requirements have been added...

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Problems solved by technology

[0007] In view of the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a method for breeding waxy corn and white waxy corn inbred lines, aiming to solve the problem that the waxy corn varieties obtained by the existing waxy corn variety breeding methods are difficult to satisfy. The question of market demand

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