High-yield shade-tolerant soybean variety breeding method suitable for interval relay intercropping

Abstract

The invention discloses a high-yield shade-tolerant soybean variety breeding method suitable for interval relay intercropping, and belongs to the technical field of soybean variety breeding. S2, parent selection; s3, parent material planting; s4, hybridization: removing stamens when buds appear in P1, and marking; lightly coating the pollen of P2 on the stigma of P1 to finish pollination work; listing and bagging are carried out, and hybridization is completed; s5, harvesting pods marked with color lines to obtain an F1 generation when the P1 is mature; s6, adding the F1 generation in Hainan to obtain F7-8 generations; s7, performing a product comparison test and a shade-tolerant identification test on the F7-8 generations to obtain a stable strain; and S8, simultaneously carrying out regional test and production test on the stable strain. The method is mainly used for breeding soybean varieties with good comprehensive characters, especially the soybean varieties with good shade tolerance, and the soybean varieties are especially suitable for intercropping with corn or fruit-bearing forests and have the advantages of being free of lodging, high in yield and good in adaptability.

Description

technical field [0001] The invention relates to the technical field of soybean variety breeding, in particular to a high-yield shade-tolerant soybean variety breeding method suitable for interval intercropping. Background technique [0002] Soybean is the most important grain and oil crop in the world and the main source of high-quality protein and oil for human beings. Soybean is a native plant in East Asia, and its fruit is oval and spherical. The color of the seed coat is yellow, light green, and black. It is also called soybean, green soybean (not pea), and black soybean, and soybean is the most common. my country is the origin of soybeans and is known as the "Kingdom of Soybeans". Soybean products occupy a very important position in my country's agricultural products, and its diversity meets people's growing diverse needs. At the same time, as an important protein food, edible oil and feed protein raw material, soybean occupies an important position in national food ...

AI Technical Summary

Problems solved by technology

China has self-selected varieties every year, but still needs to import a large amount of genetically modified soybeans. The primary reason is that the yield of soybean varieties in my country is low and lacks market competitiveness.

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