我国北部冬麦区小麦区域试验重复次数和试点数量的优化设计

张毅,许乃银,郭利磊,杨子光,张笑晴,杨晓妮

Optimization of test location number and replicate frequency in regional winter wheat variety trials in northern winter wheat region in China

Yi ZHANG,Nai-Yin XU,Li-Lei GUO,Zi-Guang YANG,Xiao-Qing ZHANG,Xiao-Ni YANG

表2 2010-2019年北部冬麦区单年单点小麦品种试验在遗传力为0.75时所需要重复数的次数分布

Table 2 Frequency distribution of replicates needed to achieve 0.75 of within-trial heritability for single-trials of regional winter wheat variety trials in Northern winter wheat region from 2010 to 2019

需要重复数 Interval of N_r needed	水地组 Irrigated group					旱地组 Rainfed group					北部冬麦区 Northern winter wheat region
需要重复数 Interval of N_r needed	N	f (%)	Cf (%)	N_r	Q_r	N	f (%)	Cf (%)	N_r	Q_r	N	f (%)	Cf (%)	N_r	Q_r
N_r≤ 1	75	67.0	67.0	0.40	0.13	60	71.4	71.4	0.30	0.10	135	68.9	68.9	0.36	0.12
1 < N_r≤ 2	14	12.5	79.5	1.41	0.47	14	16.7	88.1	1.34	0.45	28	14.3	83.2	1.38	0.46
2 < N_r ≤ 3	8	7.1	86.6	2.34	0.78	1	1.2	89.3	2.00	0.67	9	4.6	87.8	2.30	0.77
3 < N_r≤ 4	4	3.6	90.2	3.37	1.12	3	3.6	92.9	3.30	1.10	7	3.6	91.3	3.34	1.11
4 < N_r≤5	2	1.8	92.0	4.20	1.40	1	1.2	94.1	4.37	1.46	3	1.5	92.9	4.26	1.42
N_r > 5	9	8.0	100.0	9.70	3.23	5	6.0	100.0	8.90	2.97	14	7.1	100.0	9.41	3.14
总计Total	112	100.0	—	1.59	0.53	84	100.0	—	1.17	0.39	196	100.0	—	1.41	0.46