水稻超高产育种的目标与途径的探讨

本文对水稻超高产育种的目标与途径进行了系统的探讨和研究。要较大辐度地突破现有水稻品种的产量,进行水稻超高产育种是唯一的出路。水稻超高产育种的目标应分三步实现:第一步比现有品种增产10％以上;第二步比现有品种增产20—30％;第三步比现有品种增产50％以上,即单产达11250Kg/hm~2,水稻超高产育种的途经主要是杂种优势的利用,籼粳亚种间杂交,无融合生殖。遗传工程,品种间杂交育种。

Probing Into The Aims and Ways of Rice Superhigh yield Breeding

This article is systematically studied and probed into the aims and Ways of rice superhigh yield breeding. If is the only Way fo experimenf onthe rice superhiyh yield breeding if We Want fo top the outpur petential of rice breed now vailable. The aims should be divided into three steps : 1)increasing the yield more 10% than today's rice Variety; 2)increasing the yield 20% to 30%; 3) increasing the yield more than 50% namdy. per unit area yield amounts to 11250kg/hm The Ways of rice superhighyield breeding is mainly used of the hetrosis , the hybridization breeding amnong the hsien rice and keng rice the apemixs genetic engineering and infervariefal crossing.