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制种田种植密度指单位面积总株数,包括母本总株数和父本总株数。确定密度的原则:制种田的种植密度要比生产田的种植密度高30%～40%;总株数内母本株数占80%,父本株数占20%;每667m2总株数不少于7500株,其中母本株数不少于6000株,父本株数不少于1500株;父母本行比1∶4～1∶5;两行
Farming system planting density refers to the total number of plants per unit area, including the total number of female parent and male parent total number of plants. Determine the density of the principle: the planting density of planting density than the production of planting density 30% to 40%; total number of plants within the mother of 80%, the number of paternal 20%; total number of plants per 667m2 not less than 7500 , Of which not less than 6,000 maternal number of strains, the number of male parent not less than 1,500; parents than the ratio of 1: 4 ~ 1: 5; two lines