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玉米双交种在生产上进行推广以来,在各地的种植结果都反映良好,产量可比一般玉米品种增产20-30%,且生长整齐,抗逆性强。目前各地群众都要求大量种植,希望能大量生产这种种子,以供扩大种植需要。但因玉米双交种是利用一代杂交优势增产的杂交种,生产上应用时须年年进行杂交制种。双交种的种植面积,决定于杂交制种数量,只有制种解决,才可能扩大
Corn double cross breeding species in the promotion of production since the planting results are reflected around the good, the yield can increase 20-30% than the average corn varieties, and the growth of neat, strong resistance. At present, people in all parts of the country are demanding large-scale planting, hoping to mass-produce the seeds for the expansion of planting needs. However, due to double crosses of corn is the use of hybrid generation yield hybrids, the application of production should be hybridized annually. The planting area of double crossbreds depends on the number of hybrid seedpiles and can only be enlarged