Distant hybridization method of wild oats and common wheat

Abstract

The invention relates to the technical field of wheat hybridization, and discloses a distant hybridization method of wild oats and common wheat. According to the method, the common wheat is taken as a female parent, and the wild oats are taken as male parents; the female parent is planted in a dispersed way, the male parents are evenly planted around the female parent, and a one-female and multi-male hybridization system is formed by the female parent and the plurality of male parents planted around the female parent; or the male parent is planted in a dispersed way, a plurality of female parents are evenly planted around the male parent, and one-male and multiple-female hybridization system is formed by the male parent and the plurality of female parents planted around the male parent. After the distant hybridization method of the wild oats and the common wheat is adopted, the process of selecting male spike in an existing hybridization process is omitted, and the efficiency and the operation convenience of hybridization are greatly improved; furthermore, the male parents and the female parents are planted in a mixed way, so that the distant hybridization of the wild oats and the common wheat can be better realized, and the problem that the hybridization of the wild oats and the common wheat is not firm can be solved.

Description

technical field [0001] The invention relates to the technical field of wheat hybridization, in particular to a method for distant hybridization of wild oats and common wheat. Background technique [0002] In the existing wheat hybridization process, the parents are generally planted separately, the female parent is fixed, and the ear of the male parent is temporarily selected. [0003] The existing hybridization process mainly has the following steps: [0004] (1) Selection of parents [0005] According to the established hybrid combination, select well-developed, robust, no pests and diseases, and the panicle is extracted about 3 to 6 cm from the base leaf sheath, but the main panicle of the plant that has not yet bloomed, that is, the anthers are immature, is used as the female parent. [0006] (2) Whole fringe [0007] Before emasculating the female parent, use scissors to cut off the spikelets at the top and base of the spikelets, and only keep 8 to 10 robust spikelet...

AI Technical Summary

Problems solved by technology

[0016] At present, the problem of narrow wheat germplasm resources is still unsolved. Because wild oat resources are rich in genes with good traits, it is difficult to hybridize common wheat and wild oats, mainly because they cannot bear fruit normally, which seriously affects the quality of wild oats. utilization of class resources