寒地水稻纹枯病产量损失测定

Tests of Yield Loss Rate of Rice Sheach Blight in Cold Region

通过１９９３～１９９４年试验结果表明，水稻纹枯病对寒地水稻产量损失严重，平均单株产量损失率与平均病斑高率、病情指数呈极显著正相关，与病斑长度呈显著正相关。

Studies in 1993～1994 showed that the yield loss rate of rice sheach blight (pellicularia sasakii) was serious. There was a significant direct correlationship between the average unit plant yield loss rate and the averase plant disease point heisht rate or the disease index or disease point length.