播期对川中丘陵区油菜倒伏性状的影响

杨泽鹏,陈红琳,郭娟,王昌桃,刘定辉

Effects of Sowing Date on Lodging Traits of Rape in the Hilly Central Sichuan Basin, China

Zepeng Yang,Honglin Chen,Juan Guo,Changtao Wang,Dinghui Liu

表4 不同播期油菜植株性状和倒伏系数间的相关关系

Table 4 Relationship between agronomic characters and lodging coefficients of rape under different sowing dates

品种 Cultivar	指标 Indicator	鲜重 Fresh weight	茎秆抗折力 Stem breaking- resistantstrength	倒伏系数 Lodging coefficient	株高 Plant height	分枝部位 Branch height	根颈粗 Root neck diameter	茎秆粗 Stem diameter
川油36 Chuanyou 36	距顶端高度Distance from plant top	0.721^**	0.361	-0.219	-0.729^*	-0.377	-0.445	-0.421
	鲜重Fresh weight		0.412	-0.388	-0.461	-0.280	-0.332	-0.409
	茎秆抗折力Stem breaking-resistant strength			-0.773^**	-0.624^*	-0.494	-0.675^**	-0.756^**
	倒伏系数Lodging coefficient				-0.536^*	-0.588^*	-0.639^**	-0.760^**
	株高Plant height					-0.845^**	-0.715^**	-0.770^**
	分枝部位Branch height						-0.723^**	-0.726^**
	根颈粗Root neck diameter							-0.879^**
蓉油18 Rongyou 18	距顶端高度Distance from plant top	0.831^**	0.631^*	-0.251	-0.662^*	-0.429	-0.605^*	-0.624^*
	鲜重Fresh weight		0.586^*	-0.433	-0.504	-0.296	-0.556^*	-0.480
	茎秆抗折力Stem breaking-resistant strength			-0.757^**	-0.408	-0.478	-0.880^**	-0.875^**
	倒伏系数Lodging coefficient				-0.537^*	-0.576^*	-0.685^**	-0.699^**
	株高Plant height					-0.237	-0.511^*	-0.602^*
	分枝部位Branch height						-0.398	-0.535^*
	根颈粗Root neck diameter							-0.918^*