收获时期对早稻产量与镉积累分配特性的影响
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王罕, 郑德超, 田琴琴, 吴小京, 周文新, 易镇邪
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Effects of Harvest Time on Yield and Cadmium Accumulation and Distribution Characteristics of Early Rice
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Wang Han, Zheng Dechao, Tian Qinqin, Wu Xiaojing, Zhou Wenxin, Yi Zhenxie
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表1 不同收获时期下早稻产量及其构成因素
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Table 1 Yield and its components of early rice under different harvest times
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年份
Year | 品种
Variety | 处理
Treatment | 有效穗数
Productive panicle
number (×104/hm2) | 穗粒数
Grain number
per panicle | 结实率
Seed-setting
rate (%) | 千粒重
1000-grain
weight (g) | 理论产量
Theoretical
yield (t/hm2) | 实际产量
Actual yield
(t/hm2) | | 2021 | 湘早籼45号 | Ⅰ | 308.03a | 96.95a | 58.57d | 23.02b | 4.02d | 3.76d | | | Ⅱ | 312.32a | 96.47a | 64.15c | 23.23ab | 4.49c | 4.25c | | | Ⅲ | 311.85a | 96.18a | 69.10b | 23.57ab | 4.89b | 4.63b | | | Ⅳ | 309.81a | 98.11a | 76.75a | 23.71ab | 5.53a | 5.25a | | | Ⅴ | 310.12a | 98.37a | 77.32a | 23.82a | 5.62a | 5.38a | | 陆两优996 | Ⅰ | 289.75a | 96.58a | 46.74d | 27.76b | 3.63d | 3.44d | | Ⅱ | 292.75a | 93.31a | 61.58c | 27.63b | 4.61c | 4.46c | | Ⅲ | 303.00a | 94.46a | 66.77b | 28.05b | 5.12b | 4.88b | | Ⅳ | 292.75a | 96.44a | 69.49ab | 28.61a | 5.62ab | 5.35ab | | Ⅴ | 293.00a | 95.78a | 73.08a | 28.65a | 5.88a | 5.53a | | 2022 | 湘早籼45号 | Ⅰ | 324.58a | 95.25a | 55.01c | 23.36b | 3.97c | 3.72c | | | Ⅱ | 320.75a | 94.82a | 58.98bc | 23.90ab | 4.29c | 4.02c | | | Ⅲ | 320.33a | 93.03a | 66.12ab | 24.10ab | 4.75b | 4.58b | | | Ⅳ | 322.00a | 95.11a | 68.67a | 24.10ab | 5.05ab | 4.88a | | | Ⅴ | 318.25a | 93.38a | 73.33a | 24.22a | 5.25a | 5.03a | | 株两优4026 | Ⅰ | 307.25a | 118.43a | 62.58d | 26.33c | 6.00c | 5.78c | | | Ⅱ | 306.75a | 117.08a | 67.48c | 26.46bc | 6.41bc | 6.23b | | | Ⅲ | 305.75a | 116.77a | 72.26b | 26.59abc | 6.50b | 6.28b | | | Ⅳ | 310.33a | 117.13a | 75.50ab | 26.88ab | 7.38a | 7.06a | | | Ⅴ | 312.50a | 118.84a | 77.58a | 26.99a | 7.51a | 7.26a |
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