化学脱叶催熟剂对早熟陆地棉新陆早51号应用效果的研究  

The Study on Chemical Defoliants Application of Cotton Xinluzao 51

作　　者：韩焕勇[1] 王方永[1] 陈兵[1] 李保成[1] 

机构地区：[1]新疆农垦科学院棉花研究所/农业部西北内陆区棉花生物学与遗传育种重点实验室,新疆石河子832000

出　　处：《作物杂志》2014年第4期112-115,共4页Crops

基　　金：国家农业科技成果转化资金项目:机采棉新品种新陆早51号中试与示范(2012GB2G410527);新疆生产建设兵团科技攻关计划:棉花新品种高产高效栽培创建示范(2011BA001)

摘　　要：采用2种脱叶剂,设置不同的用量处理,研究化学脱叶催熟剂对早熟陆地棉新陆早51号脱叶率、吐絮率、产量和纤维品质的影响。喷施2种脱叶剂18d后,脱吐隆3个剂量处理的脱叶率差异极显著,处理A[脱吐隆+乙烯利(150g+1 800mL/hm2)]要显著低于处理B[脱吐隆+乙烯利(225g+1 800mL/hm2)]和C[脱吐隆+乙烯利(300g+1 800mL/hm2)];80%瑞脱隆3个剂量处理的脱叶率差异不显著,均在95%左右。不同处理的2种药剂对单铃重、产量和纤维品质影响不显著。从试验结果和成本效益考虑,新陆早51号施用脱吐隆225g+乙烯利1 800mL/hm2或80%瑞脱隆300g+乙烯利1 800mL/hm2较为经济。In order to verificate the effect of chemical defoliant ripening agent on the defoliation rate,bolt opening bell, yield and fiber quality of Xinluzao 51, we used two chemical defoliant ripening agents and set different amounts of processing. After 18 days, the defoliation rate was significantly different in use of thidiazuron and diuron, treatment of A were significantly lower than those in B and C. But, the defoliation rate was not significantly different in use of 80% Ruituo uplift, with a value of near 95%. Effects of two products in different treatments to the boll weight, yield and fiber quality were not significant. Considering from the results and the cost, the hidiazuron and diuron 225g ＋ ethephon 1 800mL/hm^2 or 80% Ruituo uplift 300g ＋ ethephon 1 800mL/hm^2 were more economic.

关 键 词：陆地棉 化学脱叶催熟剂 新陆早 51号 机械采收 

分 类 号：S562[农业科学—作物学]