塔里木大学学报

对冷害后存活的棉花的出叶及干物质进行了分析。结果表明 :随着棉苗损伤程度的加重 ,棉苗出现第一真叶的频率显著增大 ;真叶出现的频率与单株真叶干物质重呈显著正相关 ;第一真叶展平棉苗的单株真叶干物质重与真叶出现棉苗的单株真叶干物质呈显著正相关 ;一片子叶完好或损伤轻微 ,另一片子叶损伤严重的棉苗第一真叶出现的频率很高 ,单株真叶干物质的累积最快。

Analysis of the cotton producing true leaf and dry matter surviving the chilling injury is made. Results show that the producing frequency of the first true leaf of the cotton increases significantly with the increase of chilling injury; The positive correlation in significant between the producing frequency of the first true leaf and dry matter of true leaf individual plant; The positive correlation is significant between the dry matter individual plant of the true leaf stretching out and the cottons of appearing true leaf; The cottons which one seed leaf is complete, another is damaged completely have hot only high frequenly in appearing the first true leaf , Can but also increase fastest the dry matter of true leaf of in dividual plant.