Peanuts belong to the leguminous crops, self-pollination, and their genetic traits are relatively stable. They can be planted for years. However, peanuts, like other crops, have both genetic and variability. Heritability makes it maintain the characteristic characteristics of the original variety, and variation forms the variety diversity. Seeds with high mutation rates cannot continue to be applied to field production because the original good characteristics of the variety cannot be well expressed, and the field performance includes plant clutter, low uniformity, low yield, and weakened disease resistance. . Therefore, the purpose of the selected peanut seed is to purify and rejuvenate the superior peanut species so that the species maintains its inherently excellent animal characteristics. Mixed selection method is a simple operation, more commonly used peanut selection methods.
Selected excellent single plant
When peanuts are harvested, first select a series of excellent single plants that have not been mutated, based on the fruit shape and size criteria of the peanut varieties planted. Secondly, according to the comprehensive traits of the planted peanut varieties, select good individuals in a series of primary plants, select those with large numbers of fruits, high fruiting rate, many branches, strong growth potential, resistance to stress and resistance. Diseased, not premature aging of the excellent single plant as a retained strain. Again, select the seedlings in the selected strains to be used for seedlings that have a medium, double-fruited, and full grain size. The number of selected planting strains is generally controlled by planting 1 mu of peanuts and selecting 4000 excellent plants to retain.
The excellent plants were divided into the sun, the collection, and the seeds
The selected good individual peanuts were picked and then individually dried, individually stored, and continued to be selected before sowing. The seeds were full, disease-free and disability-free, and were planted separately. During the next harvest, the seed selection work of the previous year was repeated, so that after 2 to 3 years of continuous seed selection, the degraded variety can play a role in purification and rejuvenation; for newly introduced new varieties, it can prevent The role of sexual degeneracy.
When selecting excellent individual plants with good seedling quality, if they are found to have significantly better variants than the original, they can be single harvested, single sunned, single stocked, single planted, and bred into a new excellent peanut. Variety.
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