噻苯隆对莴笋产量、品质的影响及药害症状初步研究  

Effects of Thidiazuron on Yield, Quality of Lettuce and Its Phytotoxicity Symptoms

作　　者：王远丽 钟建明 龚永卫 刘承德 杨艳珍 李冬梅 周旋 马玉妹 

机构地区：[1]云南省玉溪农业职业技术学院,653106 [2]陕西咸阳德丰有限责任公司

出　　处：《长江蔬菜》2013年第20期35-38,共4页Journal of Changjiang Vegetables

基　　金：科学技术部中国农村技术开发中心农业科技成果转化资金项目--新型植物生长调节剂噻苯隆制剂开发生产(2007GB2G000317)

摘　　要：在一定范围内,使用高浓度噻苯隆,会直接导致莴笋的功能叶、幼叶受害,同时会因为代谢导致新生叶片受害。在摘除死亡叶片后,正常管理下,莴笋植株可恢复生长,最终成熟;使用高浓度(>0.10%)噻苯隆,会使成熟莴笋植株的株高、茎粗、叶片质量、叶中脉质量、叶片长宽比、根部质量、产量下降,而叶面积指数、品质提高;使用低浓度(0.05%)噻苯隆,可提高莴笋植株的叶片质量、叶中脉质量、茎部质量、株高、茎粗、产量。Spraying thidiazuron with high concentrations will damage functional leaves and young leaves of lettuce, and also damage the new-born leaves because of metabolism. Lettuce can grow normally and finally mature after removing dead leaves and under normal management. Spraying thidiazuron with high concentrations （〉0.10%）, the plant height, stem diameter, leaf weight, length-width ratio of leaves, leaf midrib weight and root weight were declined, but the leaf area index and lettuce quality were increased. Spraying thidiazuron with low concentration （0.05%）, the leaf weight, leaf midrib weight, stem weight, plant height, stem diameter and yield of lettuce were increased.

关 键 词：莴笋 噻苯隆 浓度 药害症状 产量 品质 

分 类 号：S636.2[农业科学—蔬菜学]