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试验结果表明，棉籽和棉纤维发育除受遗传和环境生态因素影响外，棉株生理年龄也有一定影响。不同播期间，棉株生理年龄对同期形成的伏桃棉籽和纤维的发育影响不显著，对秋桃棉籽和纤维发育影响较小，对晚秋桃棉籽和纤维发育的影响最大，似有播期愈晚，棉株生理年龄愈小，棉籽和纤维发育愈好的趋势。
The results showed that cottonseed and cotton fiber development in addition to genetic and environmental factors, the impact of physiological age cotton also have a certain influence. During different sowing dates, the physiological age of cotton plants had no significant effect on the development of cottonseed and fiber formed during the same period, but had less effect on the development of cottonseed and fiber in autumn and had the greatest impact on the development of cottonseed and fiber in late autumn. Late, the smaller the physiological age cotton plant, cottonseed and fiber development better the trend.