New variety breeding method for high-yield Valencia peanuts

Abstract

A new variety breeding method for high-yield Valencia peanuts mainly includes selecting a Valencia parent P1 and a high-yield low-temperature-resistant parent P2 to be hybridized to generate an F1 generation, creating and enlarging a low generation group since an F2 generation, starting to synchronously select a single plant system since an F3 generation, selecting pods, high in yield and cold resistance, with four and more than more seeds with red seed coats, selecting strains directionally by taking the ideal characters as a goal at an F6 generation through selfing stabilization of F4 and F5 generations within 120 days of a mature period, performing selfing stabilization for another generation, selecting strains with complete and ideal characters, comparing yields of the strains, comparing the yields with strains with more than 10% of increase production to perform variety comparison experiments, and determining that varieties with more than 10% of increase production as high-yield Valencia peanut varieties, wherein the pods have more than eight leaves during harvesting. The new Valencia peanut varieties bred by the method are high in yield and short in mature period, can substitute for conventional peanuts with four red seeds to be planted in high-dimension regions, new variety replacement of production regions of the conventional peanuts with the four red seeds is accelerated and rural income is increased.

Description

technical field [0001] The invention relates to a method for breeding new varieties of high-yield and multi-grain peanuts, belonging to the technical field of peanut breeding. Background technique [0002] Peanut is the fourth largest crop after corn, rice, and soybean in Northeast China. Northeast China (Liaoning, Jilin, southern Heilongjiang, and eastern Inner Mongolia) is an area where my country's peanut planting area is expanding year by year, and it is also my country's planned peanut production industry belt. The development of peanut production in this area can greatly increase the total peanut production, promote the adjustment of agricultural industrial structure and increase farmers' production and income. Develop the peanut planting area in Northeast my country, increase peanut production, and lay a good foundation for the safety of edible oil in our country. Four red peanuts are one of the unique agricultural products in Northeast China. Four red peanuts are r...

AI Technical Summary

Problems solved by technology

However, after more than 30 years of planting, the variety has seriously degenerated, the yield is low, and the nutritional quality has declined. It is difficult to withstand the cold weather in spring and early cooling in autumn.