干旱地区农业研究2016，Vol.34Issue(6)：204-208,265,6.DOI:10.7606/j.issn.1000-7601.2016.06.31
不同复水措施对油菜生长、产量及品质性状的影响
Effect of different rewatering treatments on growth, yield and quality traits of rapeseed(Brassic napus L.)
摘要
Abstract
The aim of this study was to investigate the effects of rewatering measures on root,growth,yield and quality traits of rapeseed (Brassica napus L.).The seedlings of two cultivars were treated by drought stress from 30 days after sowing (DAS30) to 100 days after sowing (DAS100),and then be rewatered by five treatments:'Irrigation(Ⅰ)'、'Ⅰ + K(KC1)'、'I + K + G(Gibberellin)'、'I + N(Urea)'、'I + N + G'.The results showed that:expect that the treatment of'I'has no marked effect on the above-ground dry weight and'I + N'has no significant increase in total root dry weight in Wanyou No.19,compared to the control,the five rewatering treatments after drought stress at seedling stage could significantly increase the above-ground dry weight,total root dry weight,the seed yield and oil yield in Wanyou No.19 and Tianheyou No.11 with the average increase of 11.6％,22％,19％ and 23.7％,respectively.Among the five rewatering treatments,'I + N + G'had the largest increase in the above-ground dry weight,total root dry weight,grain yield and oil yield with the average amplitude of 24.7 ％ 、27.7 ％ 、33.1％ and 36.8 ％,respectively.Compared to the control,the order of increasing amplitude of yield from high to low is'I + K + G','I + N','I + K + G','I + K'and'I'.The correlation analysis indicated that the main reason that the rewatering treatment could enhance yields owing to the significant increase of the total number of pods per plant.关键词
油菜/复水/干旱胁迫/产量性状/品质性状Key words
Brassica napus L./rewatering/drought tolerance/yield trait/quality trait分类
农业科技引用本文复制引用
朱宗河,郑文寅,周可金,刘萃鹤,张学昆..不同复水措施对油菜生长、产量及品质性状的影响[J].干旱地区农业研究,2016,34(6):204-208,265,6.基金项目
安徽省自然科学基金(1308085MC45) （1308085MC45）
安徽省油菜产业技术体系专项(11008726) （11008726）
安徽农业大学学科骨干培育项目(2014XKPY-02) （2014XKPY-02）
