A method for rapid purification and rejuvenation of adzuki bean local varieties

Abstract

The invention discloses a quick red bean local variety purifying and rejuvenating method and relates to the technical field of crop variety resource protection and utilization. The method comprises the steps: performing large group selection to select single plants and performing plant laboratory test and forming plant rows; identifying and comparing multiple plant rows and forming plant lines through the plant laboratory test; comparing multiple plant lines to predict yield and selecting high-yield plant systems through the plant laboratory test; performing mixed line breeding and producing qualified seeds. The method disclosed by the invention widens selected groups, can perform plant laboratory test according to red bean representations, ensures population genetic stability, reduces gene loss generation, quickly increases population quantity and increases output quantity of breeder seeds; seed propagation generations are reduced, a mixing opportunity is reduced, and a natural selection effect is reduced; meanwhile, a red bean local variety purifying and rejuvenating process is quickened, excellent variety characteristics are kept, germplasm resources with local characteristics are effectively protected, and the breeder seeds can be directly applied to large field production or the breeder seeds can be utilized to directly produce seeds.

Description

technical field [0001] The invention discloses a method for purification and rejuvenation, and relates to the technical field of protection and utilization of crop variety resources, in particular to a method for rapid purification and rejuvenation of local varieties of adzuki bean. Background technique [0002] Huaxiaodou is a local adzuki bean variety in Qihe County, Dezhou City. It tastes good and tastes good. It is a traditional variety of local high-quality edible beans, and is favored by consumers in the market. For a long time, the planting of Huaxiaodou has been mainly planted sporadically by farmers, and the beans used are mainly the farmers' own seeds. Although adzuki bean is a self-pollinated crop with a low natural hybridization rate, in the production process, due to the influence of mechanical mixing and adverse environment, adzuki bean varieties are prone to mixing and variation, and farmers' own seedlings are not strict, resulting in the original variety char...

AI Technical Summary

Problems solved by technology

Although adzuki bean is a self-pollinated crop with a low natural hybridization rate, in the production process, due to the influence of mechanical mixing and adverse environment, adzuki bean varieties are prone to mixing and variation, and farmers' own seedlings are not strict, resulting in the original variety characteristics. Degradation, yield and quality have seriously declined, thus limiting the further development of the production of local specialty adzuki bean varieties

The current purification and rejuvenation method of adzuki bean varieties adopts the "three garden system" based on the improved mixed selection method. The disadvantage of this method is that the production cycle is long. years; and the primary selection population is small, the seed reproduction coefficient is low, and the variety is prone to genetic drift, resulting in trait deviation or poor genetic basis, and the variety is easy to alias and deform; poor effect

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