播期和播量对超晚播小麦群体生长、干物质积累及产量的影响
田文强, 王泓懿, 聂凌帆, 孙刚刚, 张君, 张强斌, 于姗, 李家豪, 张金汕, 石书兵

The Effects of Sowing Date and Sowing Rate on the Growth, Dry Matter Accumulation and Yield of Extremely Late-Sown Wheat Population
Tian Wenqiang, Wang Hongyi, Nie Lingfan, Sun Ganggang, Zhang Jun, Zhang Qiangbin, Yu Shan, Li Jiahao, Zhang Jinshan, Shi Shubing
表1 播期和播量对小麦叶层结构的影响
Table 1 The effects of sowing dates and sowing rates on leaf layer structure of wheat
播期
Sowing
date		 播量
Sowing
rate		 旗叶Flag leaf 倒二叶Inverted second leaf 倒三叶Inverted third leaf 倒四叶Inverted forth leaf
长
Length
(cm)		 宽
Width
(cm)		 面积
Area
(cm2)		 长
Length
(cm)		 宽
Width
(cm)		 面积
Area
(cm2)		 长
Length
(cm)		 宽
Width
(cm)		 面积
Area
(cm2)		 长
Length
(cm)		 宽
Width
(cm)		 面积
Area
(cm2)
CK 19.17a 1.56a 30.30a 22.58a 1.34a 30.52a 19.55a 1.20a 23.67a 15.49a 1.10a 17.23a
DR 17.49a 1.28b 22.62b 20.14b 1.12b 22.81b 17.38b 0.92b 16.26b 13.58b 0.74b 10.32b
D1 R1 20.03a 1.45a 29.02a 22.10a 1.30a 28.68a 19.58a 1.05a 20.63a 15.57a 0.91a 14.28a
R2 18.60ab 1.34ab 25.19b 21.11a 1.20b 25.42b 17.83b 1.00ab 18.01b 13.94b 0.84a 11.93b
R3 18.36ab 1.31b 24.30b 20.80a 1.13b 23.55b 17.46b 0.93b 16.42b 13.80b 0.81a 11.27b
R4 17.46b 1.06c 18.68c 18.63b 0.97c 18.28c 15.74c 0.79c 12.60c 12.41b 0.65b 8.14c
平均 18.61a 1.29a 24.30a 20.66a 1.15a 23.98a 17.65a 0.94a 16.92a 13.93a 0.80a 11.41a
D2 R1 18.75a 1.39a 26.08a 21.18a 1.20a 25.49a 18.16a 0.95a 17.41a 13.71a 0.76a 10.70a
R2 18.66a 1.36a 25.68a 20.95a 1.19a 25.09a 17.75a 0.95a 16.80a 13.59a 0.74a 10.00a
R3 18.00a 1.30a 23.55a 20.80a 1.13a 23.57a 17.28a 0.93a 16.10a 13.08a 0.72a 9.60a
R4 15.96b 1.09b 17.63b 17.06b 0.97b 16.63b 15.20b 0.77b 11.72b 12.09a 0.60b 7.24b
平均 17.84a 1.28a 23.23a 20.00ab 1.12ab 22.69ab 17.10a 0.90a 15.51b 13.12a 0.70b 9.39b
D3 R1 16.63a 1.36a 22.65a 21.13a 1.19a 25.20a 19.31a 1.04a 20.07a 15.88a 0.79a 12.84a
R2 16.59a 1.32ab 21.88a 20.45ab 1.07b 22.06b 17.75b 0.94b 16.78b 13.49b 0.74a 10.10b
R3 15.76a 1.23bc 19.61ab 19.57b 1.06b 20.84bc 17.06b 0.92b 15.81b 13.13b 0.73ab 9.78b
R4 15.18a 1.13c 17.18b 17.97c 1.04b 18.91c 15.47c 0.81c 12.72c 12.33b 0.63b 8.00b
平均 16.04b 1.26a 20.33b 19.78b 1.09b 21.75b 17.40a 0.92a 16.34ab 13.70a 0.72b 10.18b
F值F-value D 17.94** 0.64ns 10.41** 3.05* 3.87* 4.69* 1.24ns 1.80ns 2.48ns 2.19ns 8.13** 6.80**
R 7.33** 31.84** 22.52** 26.93** 32.21** 36.39** 26.31** 24.27** 31.98** 12.28** 15.80** 19.28**
D×R 0.59ns 0.90ns 0.93ns 0.86ns 1.05ns 1.87ns 0.51ns 0.73ns 0.75ns 0.95ns 0.46ns 0.74ns