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北方杂交粳稻的推广利用目前正处于低谷。对粳稻的杂种优势如何评估?要不要坚持育种攻关?育种攻关又应当怎样进行?以上问题都引起了人们的关注。本文抛砖引玉以期求得大家的指正。
The popularization and utilization of japonica hybrid rice in the north is currently at a low level. How to evaluate the heterosis of japonica rice? Whether to insist on breed breeding? Breeding tackling should be carried out? The above problems have aroused people’s attention. This article gives pointers to get everyone correct.