Method for breeding three-red carrot variety by means of yellow carrot variety and application of hexaconazole to preventing dead and rotten carrot plants

Abstract

The invention discloses a method for breeding a three-red carrot variety by means of a yellow carrot variety and application of hexaconazole to preventing dead and rotten carrot plants. The method for breeding the three-red carrot variety by means of the yellow carrot variety includes the following step that three red varieties are used for pollination of a sterility maintainer line of the yellow carrot variety respectively, wherein all the red varieties are red in peel, flesh and core. A sterile line is found through in-variety selfing seed reserving and planting of a conventional carrot variety (yellow carrot), the variety, namely the yellow carrot, is subjected to pollination, and hybrid seeds are harvested. Offsprings of the variety are still sterile plants, and plants, with pollen, of the same kind are maintainers. Carrots of the sterile plants (lines) and maintainer plants (lines) are yellow, economic character transfer is conducted, and 8 sterile lines and 8 corresponding maintainer lines of the three-red (red skin, red flesh and red core) variety are bred.

Description

technical field [0001] The invention relates to a carrot breeding method, in particular to a method for breeding three red varieties of carrots with yellow varieties of carrots and the application of hexaconazole in preventing dead and rotten plants of carrot seeds. Background technique [0002] In agricultural production, taking advantage of the advantage of the first generation of hybridization has a significant effect on improving yield, quality, and disease resistance. Rice, corn, Chinese cabbage, tomato and other crops and vegetables have been widely used in production. [0003] When producing hybrid seeds, methods such as artificial emasculation, inbred line hybridization, self-incompatible line hybridization, and male sterile line hybridization are often used for breeding. Among them, the method of hybrid seed production using male sterile lines is simple, easy to implement, low in cost, good in effect and high in seed purity. However, artificial detasseling is requ...

AI Technical Summary

Problems solved by technology

However, artificial emasculation is required in the hybridization process, which not only increases the cost, but also its results are greatly affected by human factors, affecting seed quality and yield

The process is labor-intensive and low-efficiency; at the same time, poor working conditions affect the physical and mental health of staff

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