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分析33个辽宁省主栽品种及区域试验品种(品系)穗部性状与产量关系的结果表明,与水稻产量关系密切的穗部性状依次是穗数、每穗粒数、千粒重、二次枝梗个数、穗长、着粒密度,其中每穗粒数、穗数促进产量的提高,而着粒密度对产量的影响是负面的。
The results of analyzing the relationship between panicle traits and yield of main cultivars and regional test varieties (strains) in 33 Liaoning Provinces showed that the panicle traits closely related to rice yield were panicle number, grain number per panicle, 1000-grain weight, secondary branch Number, spike length and grain density, of which the number of grains per spike and the number of spike promoted the increase of yield, but the effect of grain density on yield was negative.