密度和株行距配置对川中丘区夏玉米群体光分布及雌雄穗分化的影响

金容,李钟,杨云,周芳,杜伦静,李小龙,孔凡磊,袁继超

Effects of density and row spacing on population light distribution and male and female spike differentiation of summer maize in hilly area of central Sichuan

Rong JIN,Zhong LI,Yun YANG,Fang ZHOU,Lun-Jing DU,Xiao-Long LI,Fan-Lei KONG,Ji-Chao YUAN

表1 不同密度和行距配置下玉米群体消光系数方程[(ln(I/I₀) = kh+a)]

Table 1 Extinction coefficient equation [(ln(I/I₀) = kh+a)] of corn population under different densities and configurations

年份 Year	密度 Density	行距 Row spacing	消光系数方程 Logarithmic function	R²
2017	A1	B1-等 B1-equal	ln(I/I₀) = 0.0090h +2.5523	0.9696^**
		B2-宽 B2-wide	ln(I/I₀) = 0.0047h +3.5541	0.9531^**
		B2-窄 B2-narrow	ln(I/I₀) = 0.0106h +2.0671	0.9791^**
		B3-等 B3-equal	ln(I/I₀) = 0.0059h +3.2565	0.9735^**
		B4-宽 B4-wide	ln(I/I₀) = 0.0041h +3.7290	0.9239^**
		B4-窄 B4-narrow	ln(I/I₀) = 0.0102h +2.2405	0.9767^**
		B5-等 B5-equal	ln(I/I₀) = 0.0046h +3.6143	0.9384^**
	A2	B1-等 B1-equal	ln(I/I₀) = 0.0103h +2.1728	0.9674^**
		B2-宽 B2-wide	ln(I/I₀) = 0.0073h +2.8467	0.9763^**
		B2-窄 B2-narrow	ln(I/I₀) = 0.0122h +1.6108	0.9926^**
		B3-等 B3-equal	ln(I/I₀) = 0.0076h +2.7509	0.9598^**
		B4-宽 B4-wide	ln(I/I₀) = 0.0056h +3.3087	0.9575^**
		B4-窄 B4-narrow	ln(I/I₀) = 0.0112h +1.9446	0.9674^**
		B5-等 B5-equal	ln(I/I₀) = 0.0061h +3.1839	0.9775^**
2018	A1	B1-等 B1-equal	ln(I/I₀) = 0.0077h +2.6975	0.9640^**
		B2-宽 B2-wide	ln(I/I₀) = 0.0061h +3.0639	0.9576^**
		B2-窄 B2-narrow	ln(I/I₀) = 0.0088h +2.2892	0.9760^**
		B3-等 B3-equal	ln(I/I₀) = 0.0071h +2.8679	0.9554^**
		B4-宽 B4-wide	ln(I/I₀) = 0.0056h +3.3071	0.9567^**
		B4-窄 B4-narrow	ln(I/I₀) = 0.0083h +2.5240	0.9855^**
	A2	B1-等 B1-equal	ln(I/I₀) = 0.0087h +2.2735	0.9735^**
		B2-宽 B2-wide	ln(I/I₀) = 0.0078h +2.5173	0.9739^**
		B2-窄 B2-narrow	ln(I/I₀) = 0.0091h+2.1131	0.9645^**
		B3-等 B3-equal	ln(I/I₀) = 0.0079h +2.5433	0.9878^**
		B4-宽 B4-wide	ln(I/I₀) = 0.0077h +2.8264	0.9424^**
		B4-窄 B4-narrow	ln(I/I₀) = 0.0088h +2.2422	0.9789^**
	A3	B1-等 B1-equal	ln(I/I₀) = 0.0108h +1.7759	0.9797^**
		B2-宽 B2-wide	ln(I/I₀) = 0.0102h +1.9959	0.9763^**
		B2-窄 B2-narrow	ln(I/I₀) = 0.0116h +1.4354	0.9661^**
		B3-等 B3-equal	ln(I/I₀) = 0.0104h +1.9499	0.9817^**
		B4-宽 B4-wide	ln(I/I₀) = 0.0100h +2.2203	0.9614^**
		B4-窄 B4-narrow	ln(I/I₀) = 0.0110h +1.6780	0.9755^**