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以 5个夏大白菜品种为试材 ,在 6～ 8月份栽培 ,比较其耐热性及主要性状的相关性 ,结果表明 :夏翠品种耐热性、叶球商品产量、商品性均好于其他供试品种。叶球商品产量与植株叶片数、平均单球重、球高、球体积及结球率呈极显著正相关
Five summer Chinese cabbage cultivars were used as test materials and cultivated in June ~ August. The correlations between heat tolerance and main characters were compared. The results showed that the heat tolerance, leaf yield and commerciality of summer variety were better than Other test varieties. The leaf yield had significant positive correlation with leaf number, average single ball weight, ball height, ball volume and ball-bearing rate