main culm
主茎
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The main results were as follows: 1. Plant height, culm thickness and biomass per plant were correlated to the lodging index at the 1% level of significance.
倒伏指数与株高、地上部生物量、茎粗的相关系数均达1%显著水平，表明水稻倒伏指数受株高、地上部生物量和茎粗等性状的显著影响。
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