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通过喷施延迟吐絮生长调节剂,探讨其对棉花产量及品质的影响。结果表明:喷施延迟吐絮生长调节剂使棉花株高增加,出现新发侧枝;棉花吐絮受到抑制,吐絮率显著下降,单株成铃增加0.33个,铃重增加0.18 g,衣分显著提高;纤维上半部平均长度比清水对照增加0.5 mm左右,断裂比强度、伸长率和纺纱均匀性指数都有所增加,长度整齐度指数和马克隆值有下降趋势。总的分析认为,延迟吐絮调节剂利于棉花产量提高和品质改善。
The effect of cotton boll growth regulator on the yield and quality of cotton was studied by spraying delayed-flow boll growth regulator. The results showed that cotton boll height was increased and new lateral branches appeared. The cotton boll was inhibited and the boll opening rate decreased significantly. The number of bolls per plant increased by 0.33 and boll weight increased by 0.18 g, The average length of the upper half of the fiber increased by about 0.5 mm compared with that of the control. The breaking strength, elongation and spinning uniformity index increased, and the length uniformity index and micronaire value tended to decrease. The overall analysis suggests that delayed flocculation regulators favored improved cotton yields and better quality.