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棉花选种,要求做到“五选”与“四分”。“五选”就是块选、株选、铃选、办选及粒选等。1.块选(片选):未建立种子地的农业社,今秋可选择生长健壮,产量高及纯度大的棉田,做为选种地用。山西翼城先锋社就是在水地、肥地、亩产在500斤以上的棉田上选种,因为这些地所产生的种子,子粒饱满,发芽快,产量也高。如苏联伏罗希洛夫农庄及其他各处试验,同是108夫棉种,在丰产地上采收的种子,比从加工厂买来的种子能增产12%以上。所以说选种要在丰产地段上进行.
Cotton seed selection, required to do “five election ” and “quarter ”. “Five election ” is a block election, strain election, bell election, election and pelleting and so on. 1. Block election (chip election): no seed to the farming community, choose to grow robust autumn, high yield and purity of the cotton fields, as a selection use. Shanxi Yicheng Pioneer Club is in the water, fertile land, more than 500 pounds per mu in cotton fields on the selection, because these places produce seeds, full of seeds, germination, production is also high. For example, the Voroshilov farms in the USSR and other places experimented with the same 108 Gossypium species, and the seeds harvested in high yielding fields could be increased by more than 12% over the seeds purchased from processing plants. So that selection should be carried out in high yield lots.