控水增密模式对杂交籼稻减氮后产量形成的调控效应

李敏, 罗德强, 江学海, 蒋明金, 姬广梅, 李立江, 周维佳

Regulations of controlled irrigations and increased densities on yield formation of hybrid indica rice under nitrogen-reduction conditions

Min LI, De-Qiang LUO, Xue-Hai JIANG, Ming-Jin JIANG, Guang-Mei JI, Li-Jiang LI, Wei-Jia ZHOU

表13 水稻干物质分配的方差分析

Table 13 Analysis of variance for dry matter allocation in rice

性状 Trait 变异来源 Source of variation 自由度 df 平方和 Sum of square 均方 Mean squares F值 F-value 显著性 Significance 茎鞘干物质分配量 Dry matter allocation in stem and sheath 栽培模式CM 26 52.70 2.03 14.03 < 0.01 误差Residual 52 7.51 0.14 总变异Total 80 61.20 叶片干物质分配量 Dry matter allocation in leaf 栽培模式CM 26 69.44 2.67 173.65 < 0.01 误差Residual 52 0.80 0.02 总变异Total 80 70.56 穗部干物质分配量 Dry matter allocation in panicle 栽培模式CM 26 130.98 5.04 13.34 < 0.01 误差Residual 52 19.63 0.38 总变异Total 80 158.31 茎鞘干物质分配比例 Dry matter allocation rate in stem and sheath 栽培模式CM 26 284.86 10.96 2.67 < 0.01 误差Residual 52 213.76 4.11 总变异Total 80 520.57 叶片干物质分配比例 Dry matter allocation rate in leaf 栽培模式CM 26 779.72 29.99 59.74 < 0.01 误差Residual 52 26.10 0.5 总变异Total 80 805.86 穗部干物质分配比例 Dry matter allocation rate in panicle 栽培模式CM 26 1482.41 57.02 11.34 < 0.01 误差Residual 52 261.48 5.03 总变异Total 80 1767.02