干旱地区农业研究2017，Vol.35Issue(4)：263-269,7.DOI:10.7606/j.issn.1000-7601.2017.04.40
抗寒复合剂对白菜型冬油菜生长发育及产量性状的影响
Effect of cold-resistant compounds on growth and yield of winter rapeseed(Brassica rapa L.)
摘要
Abstract
A field experiment was conducted on Longyou 6,Longyou 7 and Tianyou 2 and Tianyou 4,(Lonyou 6 and Longyou7 have super strong cold resistance;Tianyou 2 and Tianyou 4 have weak cold resistance) to identify the effects of cold-resistant compounds on the leaf relative electrical conductivity,MDA content,overwintering rates,agronomic traits,growth period,economic coefficient and yield change of winter rapeseed (Brassic rapa L.) at minus five degree.6 types of treatments were designed:T1,distilled water(CK);T2,20 mg· L-1 ABA;T3,20 mg· L-1 ABA + 300 mg· L-1 PEG-6000;T4,20 mg·L-1 ABA + 50 mg·L-1 PP333;T5,20 mg·L-1 ABA + 300 mg·L-1 PEG-6000 + 50 mg ·L-1 PP333;T6,20 mg·L-1 ABA + 300 mg·L-1 PEG-6000 +50 mg·L-1 PP333 + 10 g·L-1 urea.We found that the overwintering rates achieved 91.97％ under T5,increased by 18.87％,compared with CK.Mter spraying cold-resistant compounds,compared with ck,the leaf relative conductivity and MDA content averagely decreased by 25.43％ and 25.36％ respectively,and root collar diameter,pods per plant,yield per plant,economic coefficient,and yield increased significantly,as well as growth period prolonged.In terms of cold-resistance effects,the treatments sequenced in the way of T5 ＞ T6 ＞ T4 ＞ T3 ＞ T2 ＞ CK,according to subordinate function analysis and the principal component scores.关键词
白菜型冬油菜/抗寒复合剂/生长发育/抗寒性Key words
Brassica rapa L./cold-resistant compound/the growth and development/cold resistance分类
农业科技引用本文复制引用
郭仁迪,袁金海,刘海卿,武军艳,孙万仓,刘自刚,曾秀存,方园,陈奇,王治江..抗寒复合剂对白菜型冬油菜生长发育及产量性状的影响[J].干旱地区农业研究,2017,35(4):263-269,7.基金项目
国家自然科学基金项目(31460356) （31460356）
农业部产业技术体系建设资金项目(CARS-13) （CARS-13）
国家“973”计划(2015CB150206) （2015CB150206）
国家高科技研究发展计划(863计划)项目(2011AA10A104) （863计划）
国家农业部科技成果转化项目(2014G10000317) （2014G10000317）
国家自然基金(31560397)(2015-2017) （31560397）
甘肃省自然科学基金(145RJZG050) （145RJZG050）
甘肃省河西走廊特色资源利用重点实验室面上项目(XZ1403) （XZ1403）
