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为了研究新型生长调节剂对棉花赘芽生长及产量性状的影响,探索棉花规模化种植过程中抑制赘芽滋生、简化整枝管理的新技术。在大田条件下设置了多铃专家、艾氟迪(AFD)与生长调节剂缩节胺(DPC)的对比试验,对棉花植株形态、赘芽生长、成铃空间分布以及产量进行了研究。结果表明:喷施多铃专家、艾氟迪后,对棉株上部主茎节间平均长度和中上部果枝平均长度的生长抑制作用弱于缩节胺;单株赘芽鲜重和干重均显著小于缩节胺处理,单株赘芽鲜重为DPC处理的54.8%和49.4%,单株赘芽干重为DPC处理的53.2%和54.8%,单株赘芽总长度为DPC处理的69.0%和58.1%;单株成铃数比DPC处理高7.0%和12.3%,产量分别比DPC处理高12.6%和10.2%,多铃专家处理提高了棉株内围铃数,艾氟迪处理则主要增加了棉株外围铃数,两者还有增加主茎叶腋处桠铃的趋势。
In order to study the effects of new growth regulators on the growth and yield traits of the vegetative buds of cotton, and to explore the new techniques of inhibiting the growth of vegetative buds and simplifying the pruning of cotton during the large-scale cotton planting. Under the field conditions, we set up a comparative experiment between polyphyllazine, AFD and DPC, and studied the plant morphology, the growth of vegetative buds, the spatial distribution of boll and the yield of cotton bollworm. The results showed that the growth inhibition of the average length of the upper main stem and the average length of middle and upper branches of the cotton bolls was weaker than that of the meso- Was significantly less than the shrinkage amine treatment, the fresh weight of single plantlets was 54.8% and 49.4% of DPC, the dry weight of single plantlets was 53.2% and 54.8% of that of DPC, and the total length of single plantlets was 69.0% % And 58.1% respectively. The number of bolls per plant was 7.0% and 12.3% higher than that of DPC and the yield was 12.6% and 10.2% higher than that of DPC respectively. Mainly increased the number of cotton bolls peripherals, both the main stem leaf axillary bell growth trend.