A Directional Improvement Method of Four Red Peanuts

Abstract

The invention provides a method for directional improvement of four-safflower peanut, comprising the following steps: the female parent is four-safflower variety, the male parent is the trait or gene to be introduced, single crossing; the F1 generation seeds are multiplied, and directional selection is carried out. Multi-grain type F3 generation seeds, with F3 generation as the male parent, mixed powder and four grains of red line as the female parent to produce F*1 generation; directional selected F3 generation seeds or plants as male parent, multiply F3 generation seeds to produce For F4 generation seeds, select seeds or plants containing the target traits; use F*1 generation as the male parent, and the F4 generation seeds selected by direction as the female parent, mix F*1 pollen, sexually cross with the female parent, and harvest FL1 generation seeds; F ※The 1st generation seed is used as the male parent to multiply to produce the F※2 generation seed; the F※2 and FL1 generation seeds are multiplied to obtain a population containing 3 / 4 four-seed red blood and a population containing 5 / 8 four-seed red blood, Multiply and add generations, and select to form varieties. This method can form different blood groups of four grains of red, and the background of the population is divergent, which is conducive to breaking the chain and forming high-yield and high-quality four grains of red varieties.

Description

technical field [0001] The invention belongs to the technical field of peanut breeding, and in particular relates to a method for directional improvement of four-safflower peanuts. Background technique [0002] Peanut is one of the most important oil crops in my country. Because of its high yield, high quality and high-efficiency economic benefits, it has become the oil crop and economic crop with the highest per unit yield, total output and export earnings in my country. It is an important source of high-quality edible vegetable oil and high-quality edible vegetable protein in China. It plays an important role in my country's food safety and oil safety. Multi-grain peanuts are an important type of peanut cultivars in my country, mainly distributed in major peanut producing areas such as Jilin, Heilongjiang, Xinjiang, Inner Mongolia, and Liaoning. Four-grained red peanuts are multi-seed peanuts with few branches and erect clusters. The pods are beaded, and the mouth and wais...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of serious loss of multiple grains, husk characteristics and taste characteristics in the existing four-safflower interspecific hybridization improvement method, the present invention provides a directional improvement method for four-safflower peanuts, which utilizes the existing four-safflower peanut Peanut is the female parent. By introducing target traits or genes, through years of reincarnation-like selection methods, on the premise of ensuring the multi-grain, shell characteristics, and taste characteristics of the four-red peanuts, the yield, stress resistance, etc. quality

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