The effects of the panicle length, branch distribution, number of spikelets, seed set percentage, neck vascular bundles and plant weight per stem on spikelet number per panicle were analyzed.
分析了穗长、枝梗分布、枝梗颖花数及其结实率、穗部维管束数目和开花期单茎干物重对穗粒数的影响。
The number of leaf primordia was affected by both genotype and environment, while the Numbers of bracteal, spikelet and floret primordia were affected mainly by environmental factors.
叶原基数由基因型和环境条件共同决定，而苞叶原基、小穗原基和小花原基数以环境因子的影响为主。
Correlation analysis of characters indicates that shortening heading date can cause the increase in grains number per spike and 1000-grain weight, but decreases in spikelet per spike.
性状相关分析表明，随着抽穗期缩短，穗粒数和千粒重增加，但小穗数有减少的趋势。
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