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Relation between Physico-chemical Properties of Stem and Lodging and Evaluation of Lodging Resistance in Rapeseed (Brassica napus L.)
Author(s): LIU Tang-xing, GUAN Chun-yun, XIAO Jun-ze, LIANG Yong, LEI Dong-yang, WANG Yong-xing
Pages: 40-
42,54
Year: 2007
Issue:
12
Journal: JOURNAL OF HENAN AGRICULTURAL SCIENCES
Keyword: 甘蓝型油菜; 主茎; 理化特性; 倒伏指数; 倒伏系数;
Abstract: 以抗倒性不同的8个甘蓝型油菜品种为供试材料,分析了主茎的理化特性、株高、单株产量和倒伏情况,结果表明:中双9号的抗倒性最强,其主茎蛋白质含量最高,其他理化指标在品种间无明显区别;主茎钾含量与蛋白质、电阻率呈显著负相关;但蛋白质与含水量、粗纤维与抗折力、钙含量与单株产量、株高与粗纤维、株高与倒伏指数、倒伏指数与倒伏系数等均呈显著正相关;单株产量与倒伏指数呈极显著正相关.利用倒伏系数(单株产量/株高×抗折强度)评价油菜倒伏性是可行的.
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