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对3类抗虫棉品种(系)生长发育和种植效益的比较研究结果表明,抗虫杂交棉6H1和H9513在生长发育上有明显的优势,常规抗虫棉美国33B表现苗弱、前期生长慢、后发性强的特点。两个抗虫杂交棉品系的产量显著高于对照中棉所9418,两个常规抗虫棉的产量比对照低5%~20%。抗虫棉品种(系)的总治虫用工可减少57%,其中减少防治棉铃虫用工70%;总治虫用药投入减少70%,其中防治棉铃虫用药投入减少90%。
The results of comparative studies on the growth and development of three types of insect-resistant cotton varieties (lines) showed that the insect-resistant hybrid cotton 6H1 and H9513 had obvious advantages in growth and development. The performance of the conventional insect-resistant cotton American 33B was weak, , Late onset of strong features. The yield of two insect-resistant hybrid cotton lines was significantly higher than that of the control Zhongmiansuo 9418, and the yield of two conventional insect-resistant cotton was 5% -20% lower than that of the control. Insect-resistant cotton varieties (lines) of the total use of insecticide can be reduced by 57%, of which reduce the control of cotton bollworm workers 70%; total use of insecticide to reduce the investment 70%, including the prevention and treatment of bollworm drug inputs to reduce 90%.