basal and erect
基部直立
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The reasons were as follows: firstly, the varieties with erect and semierect panicle were dwarf with short basal internodes, which increased their lodging resistance;
主要原因在于：直立、半直立穗型品种株高偏矮，基部节间短，更有利于抗倒；
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