双季机械直播早籼稻品种的丰产性和稳产性

陈丽明,周燕芝,谭义青,吴自明,谭雪明,曾勇军,石庆华,潘晓华,曾研华

High and Stable Yield of Early Indica Rice Varieties with Double-Season Mechanical Direct Seeding

LiMing CHEN,YanZhi ZHOU,YiQing TAN,ZiMing WU,XueMing TAN,YongJun ZENG,QingHua SHI,XiaoHua PAN,YanHua ZENG

表5 3个生态区产量联合方差分析及线性回归

Table 5 Pooled ANOVA and liner regression for grain yield date in three ecological zones

	变异来源 Source of variation	自由度 df	平方和 SS	均方 MS	F	P	占平方和的 Ss (%)
联合方差 Pooled ANOVA	总变异 Total variation	188	120.67	0.64	—	—	—
	处理 Treatment	62	82.08	1.32	4.32	0.0001	68.02^a
	基因 Genotype (G)	20	43.56	2.18	7.11	0.0001	36.10^a
	环境 Environment (E)	2	5.29	2.65	8.64	0.0003	4.38^a
	G×E	40	33.23	0.83	2.71	0.0001	27.54^a
	误差 Error	126	38.58	0.31	—	—	31.98^a
线性回归 Liner regression	联合回归 United regression	1	1.31	1.31	4.29	0.0403	3.96^b
	基因回归 Genotype regression	19	16.82	0.89	2.89	0.0002	50.61^b
	环境回归 Environment regression	1	0.71	0.71	2.30	0.1317	2.12^b
	残差 Residual error	19	14.39	0.76	2.47	0.0015	43.31^b