壳寡糖在早熟梨生产中的应用研究  

Application of Chito-oligosaccharide in the Production of Early-maturing Pear

作　　者：刘弘[1] 汪小伟 程兰 吴琼[1] 王东[1] 张艳[1] 

机构地区：[1]重庆三峡职业学院,万州404155 [2]重庆市万州区果树技术推广站

出　　处：《中国南方果树》2012年第1期17-21,共5页South China Fruits

基　　金：国家"863"计划项目--海洋生物农药及植物促生长剂产业化关键技术研究(2007AA091601);重庆市万州区科委2010年度科技计划项目--寡糖生物农药的应用推广资助

摘　　要：壳寡糖(chito-oligosaccharide,COS)是一种植物诱抗剂,在植物生长调节及诱导植物抗逆性和抗病性等方面显示了极大的应用潜力。试验研究发现,在早熟梨生产中喷施壳寡糖50mg.L-1,可明显增强树势,提高抗病能力,促进生长,减少落果,防止梨树早期落叶,单株产量提高18.5%以上,梨果可溶性固形物含量增加0.8个百分点以上,对提高产量和改善品质效果显著。The chito-oligosaccharide（COS）, a plant elicitor, has great application potential in regula- ting plant growth including induction of plant stress- and disease-resistance. It was shown that the application of COS at 50 mg · L-1 on early-maturing pear trees promoted the tree growth vigor obviously, and increased disease resistance. The treatment also decreased fruit drop rate and prevented early leaf abscission. The average yield per tree and fruit soluble solids content increased more than 18. 5; and 0. 8;, respectively. It was concluded that COS had remarkably good effect on yield and fruit quality.

关 键 词：壳寡糖 早熟梨 植物诱抗剂 

分 类 号：S661.2[农业科学—果树学]