干旱地区农业研究2016，Vol.34Issue(6)：8-14,7.DOI:10.7606/j.issn.1000-7601.2016.06.02
灌浆天数对北方白菜型冬油菜产量和品质的影响
Effect of grain filling time on yield and quality of winter rapeseed(Brassica rapa L.)in north China
摘要
Abstract
The experiment was conducted to study the yield and quality of winter rapeseed (Brassica rapa L.) during filling maturity in north China to better guide harvest timely,and to improve the yield and quality.Analysis of plant morphogenesis alterations,plant dry and fresh weight,pods and seeds,yield and quality of winter rapeseed after final flowering 10,20,30,40 d,and 45 d involved in Longyou 12 and 09 jian 8.The results showed that the color of pods and plants was bottle green,dark green,laurel green,kelly green and skin white,respectively,along with the filling maturity.The shape of seeds is characterized with the small-big-small tendency,and the color exhibits green-brown -green-brown-purple-black changes successively.Plant,pods and seed fresh weight,showing a single peak curve like a parabola that first increased and then decreased,reached the maximum 20,30,40 d after flowering,respectively,and the plant,pod,grain dry weight increased and then were kept constant.Seed weight,seed yield and economical coefficient exhibited S type rise curve with the peak at 30 d after flowering.The seed fresh weight,the weight of 1 000 seeds,and economical coefficient showed significant positive correlation with grain filling time,and theircorrelation coefficient was 0.991,0.962,0.968,respectively.grain filling time also had a significant (P ＜ 0.05) positive correlations with individual plant yield and oil content,and the correlation coefficient was 0.947and 0.940,respectively.And it had a significant (P ＜ 0.05) negative correlations with protein leveland the correlation coefficient was-0.886.The rank was 40 d ＞ 45 d ＞ 30 d ＞ 20 d ＞ 10 d by integrated evaluation of the main components.So,the grain filling time had a significant effect on the yield and quality of winter rapeseed,and the sallow period about after final flowering 40 d is the most suitable period to harvest when the yield and quality are best.关键词
白菜型冬油菜/灌浆天数/产量/品质性状Key words
Brassica rapa L./winter rapeseed/grain filling time/yield/quality traits分类
农业科技引用本文复制引用
雷建明,刘海卿,张亚宏,张岩,孙万仓..灌浆天数对北方白菜型冬油菜产量和品质的影响[J].干旱地区农业研究,2016,34(6):8-14,7.基金项目
自然科学基金项目(31460356,31560397) （31460356,31560397）
国家现代产业技术体系建设专项(CARS-13) （CARS-13）
国家重点基础研究发展计划(973计划)项目(2015CB150206) （973计划）
国家农业科技成果转化项目(2014G10000317) （2014G10000317）
