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通过盆栽试验，采用４因素５水平的正交设计，研究了不同生育时期（ｘ１）、不同淹水深度（ｘ２）、不同淹水天数（ｘ３）和不同泥沙含量（ｘ４）的淹水对杂交稻组合威优４６的叶片细胞电解质伤害性外漏率（ｙ１）及其相对产量（ｙ２）的影响。经多元正交多项式的方差分析，ｘ２，ｘ３，ｘ２１，ｘ２４，ｘ１ｘ２，ｘ１ｘ３，ｘ１ｘ４，ｘ２ｘ３，ｘ２ｘ４，ｘ３ｘ４与ｙ１之间具有显著的相关性，可建立良好的回归关系式；经线性回归分析，ｙ１与ｙ２呈极显著的负相关，说明叶片细胞电解质伤害性外漏率的升高是造成减产的重要原因之一。
By orthogonal design of 4 factors and 5 levels, pot experiments were conducted to study the effects of flooding on different development stages (x1), different flooding depths (x2), different flooding days (x3) and different sediment contents (x4) Effect of hybrid rice combination Weiyou 46 on the nodule cell electrolyte leakage leakage (y1) and its relative yield (y2). Through the analysis of variance of multivariate orthogonal polynomial, there is a significant correlation between x2, x3, x21, x24, x1x2, x1x3, x1x4, x2x3, x2x4, x3x4 and y1 to establish a good regression relationship; , Y1 and y2 showed a significant negative correlation, indicating that leaf cell electrolyte leakage rate is to increase one of the important reasons to reduce production.