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主穗与分蘖穗的差异是早为人们注意和认识的自然现象。横向经济性状的报道比较早,但世代间垂直的性状报道却少。为了进一步揭示主穗优势的广普性和优势在后代的延续作用以及利用这一优势于生产实践的途径和价值,1979～1984年我们先后对早晚稻多品种的主穗优势在当代、后代主要经济性状上的表现进行了一系列试验,并对促进当代主穗的优势相应农艺措施及生产上如何直接利用主穗优势等方面作了一些工作。
The difference between the main spike and tillering spike is a natural phenomenon that people pay attention to and recognize early. Transverse economic traits reported earlier, but vertical traits reported less between generations. In order to further reveal the extensiveness and advantage of the main spike advantage and its continuing role in future generations and the way and value of using this advantage in production practice, we have successively dominated the main spike of early-late rice varieties from 1979 to 1984 in the present and future generations Economic traits carried out a series of experiments, and to promote the contemporary main spike the corresponding agronomic measures and how to make direct use of production advantages of the main spike some work.