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玉米杂交种增产效果十分明显,一般可增产20～30%或更多。我省1965年玉米每亩产量为393斤,全省普及杂交种后,到1975年玉米每亩产量达到512斤。据多年统计,只此一项每年可为国家增产玉米12～15亿斤。但玉米育种工作,尚远远满足不了生产的要求。我省玉米的杂交育种工作,目前正处于以“330”自交系为中心,挖掘各个优良自交系的各种潜力的“爬坡”阶段。如何发挥330的配
Maize hybrid yield increase effect is very obvious, generally increase 20 to 30% or more. The output of corn in 1965 in our province was 393 kg per mu. After the popularization of hybrid rice in the province, the output of corn per mu in 1975 reached 512 kg. According to statistics for many years, only this one can increase the output of corn by 12 to 1.5 billion kilograms per year for the country. But corn breeding work, still far can not meet the production requirements. The hybrid breeding of maize in our province is currently in the stage of “climbing” with the potential of “330” inbred lines as the center, to tap various potentials of various fine inbred lines. How to play the 330 match