江苏太湖地区不同生育类型粳稻品种产量对不同播期气候因子的响应
董明辉, 陈培峰, 江贻, 曹鹏辉, 宋云生, 顾俊荣, 谢裕林, 乔中英, 张文地, 黄丽芬

Response of yield of different growth types of japonica rice varieties to climatic factors at different sowing dates in Taihu region of Jiangsu province
DONG Ming-Hui, CHEN Pei-Feng, JIANG Yi, CAO Peng-Hui, SONG Yun-Sheng, GU Jun-Rong, XIE Yu-Lin, QIAO Zhong-Ying, ZHANG Wen-Di, HUANG Li-Fen
表3 播期对不同品种类型水稻产量及构成因素的影响
Table 3 Effects of seeding dates on grain yield and yield components from 2018 to 2019 in rice
年度Year 品种Variety 播期
Seeding
date
有效穗
Effective panicle (×104 hm-2)
每穗总粒数Grains per panicle 结实率
Seed setting rate (%)
千粒重
1000-grain weight (g)
产量
Yield
(t hm-2)
2018 V1 B1 324.25 a 126.69 a 88.36 b 26.74 a 9.71 a
B2 314.63 b 125.34 a 92.21 a 26.49 a 9.63 a
B3 305.05 c 123.59 a 91.89 a 26.52 a 9.19 b
B4 290.21 d 120.36 a 93.65 a 26.32 a 8.61 c
平均值Average 308.54 124.00 91.53 26.52 9.28
变异系数CV 4.70 2.21 2.45 0.65 5.43
V2 B1 316.25 a 125.56 a 95.96 a 28.17 a 10.73 a
B2 305.74 b 122.32 ab 95.44 a 27.59 b 9.85 b
B3 290.38 c 117.32 ab 95.04 a 27.32 b 8.85 c
B4 289.34 c 114.36 b 95.17 a 26.48 c 8.34 d
平均值Average 300.43 119.89 95.40 27.39 9.44
变异系数CV 4.31 4.18 0.43 2.57 11.29
2019 V1 B1 313.45 a 140.69 a 85.68 b 26.02 a 9.83 a
B2 309.85 a 133.56 ab 92.95 a 26.39 a 10.15 a
B3 297.49 b 129.91 bc 92.45 a 26.28 a 9.39 b
B4 286.29 c 120.48 c 91.43 a 26.10 a 8.23 c
平均值Average 301.77 131.16 90.63 26.20 9.40
变异系数CV 4.10 6.41 3.71 0.64 8.94
V2 B1 306.65 a 123.60 a 95.72 a 28.87 a 10.47 a
B2 297.88 ab 120.10 a 95.38 a 28.83 a 9.84 b
B3 288.10 b 119.62 a 94.10 a 27.84 b 9.03 c
B4 285.14 b 107.52 b 93.25 a 25.64 c 7.33 d
平均值Average 294.44 115.21 94.61 28.02 9.06
变异系数CV 3.33 10.35 1.21 3.91 17.28