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以中棉所41号和鲁棉研18号为试验材料,研究花铃期不同程度遮荫对棉花纤维品质性状的影响.结果表明,遮荫使最终纤维长度变短,且变短幅度随遮荫程度增加而加大,70%遮荫处理比40%遮荫处理平均变短1.01mm;遮荫延缓纤维伸长期,CK纤维25d达到最大长度,而遮荫后35d达到最大长度;遮荫降低纤维断裂比强度,且降低幅度随遮荫程度增加而增大;40%和70%遮荫处理都使纤维麦克隆值和成熟度显著下降.两个供试品种纤维品质性状在遮荫条件下变化趋势一致.
The effects of shading with different degrees of flower-boll stage on the fiber quality of cotton were studied by using CIMC No.41 and LUMANYING18 as the experimental materials.The results showed that shading reduced the final fiber length, Shade degree increased and increased, 70% shading treatment shorter than the 40% shading treatment average 1.01mm; shade delay fiber elongation, CK fiber 25d reached the maximum length, and reach the maximum length 35d after shading; shade reduced Fiber breaking strength, and the decreasing amplitude increased with the degree of shading increased.While 40% and 70% shading treatments decreased the value of wheat micronaire and maturity significantly.The fiber quality traits of two tested cultivars under shading conditions The same trend.