Peanut species are used in large quantities. If the seeds used are purchased from the market, the cost is too high. Therefore, many farmers tend to use self-retained species when growing peanuts. However, peanuts that are left for self-use for many years will degrade their species and lead to a reduction in production. Therefore, farmers must master scientific methods of selecting seeds when they use peanut seeds. Peanuts are leguminous crops, self-pollination, and their genetic traits are relatively stable and can be planted year after year. However, peanuts, like other crops, are hereditary and have variability. Genetics maintain the stability of the traits of the variety, while the variation results in the diversity of the variety. Genetics and variation are the objective material basis for selected peanuts. The mutation rate of peanuts is less than 5%, and the variation direction is uncertain. Some plants that have been mutated will have better traits and some will worsen. Peasants choose to keep peanut seeds to purify and rejuvenate the excellent peanut seeds so that the varieties maintain their inherent excellent animal characteristics. The hybrid selection method is suitable for the selection of peanuts by farmers. 1. Selecting good individual plants When peanuts are harvested, first select a series of excellent individual plants that have not been mutated, based on the fruit shape and size criteria of the planted peanut varieties. Secondly, according to the comprehensive characters of the peanut varieties planted, combined with the results of the number of primary plants selected, the fruit rate, the number of branches per plant, growth potential, disease resistance, and other traits continue to be selected in a series of primary plants. For single plants, select the best single plants that have a large number of results, a high fruit-filling rate, a high number of branches, strong growth potential, resistance to stress, resistance to disease, and premature aging. Select the number of planting species to plant 1 acre peanut to choose 700-800 excellent single plant is appropriate. 2. The selected excellent single plants will be collected individually, and the peanuts of the single plant that will be selected will be air-dried separately, stored separately, and planted separately in the second year. In the next harvest, the seed selection work of the previous year is repeated, so that after 2 to 3 years of continuous seed selection, the already degraded varieties can have the effect of purification and rejuvenation; for the newly introduced new varieties, the species can be prevented from breeding. Degradation makes it more traits and yields increase year by year. In the selection of excellent single plants, if there is a mutant that is significantly better than the original variety, it can be cultivated as a new, excellent peanut variety by single harvesting, single drying, single storage, and single planting. China Agricultural Network Editor
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