|
|
|
| Study on the Resistance Correlation between Downy Mildew and Powdery Mildew in Cucumber |
| Zhang Suqin,Gu Shengfang,Zhang Shengping,Zou Zhirong |
| Institute of Vegetables and Flowers; Chinese Academy of Agricultural Sciences; Beijing 100081; College of Agriculture; Guizhou University; Guiyang 550025; College of Horticulture; Northwest Sci-Tech University of Agriculture and Forestry; Yangling 712100 |
|
|
|
|
Abstract 29 worldwide representative cucumber materials(K1-K29)and 4 populations from 2 crosses were employed for studying the resistance correlation between downy and powdery mildews.The result showed that correlation coefficients of disease indexes between downy mildew and powdery mildew were 0.619 8 and 0.677 2 at the seedling and mature stages respectively,which were extremely significant.The correlation coefficients of downy mildew and powdery mildew for BC1P1 and F2 individuals from the cross between K8 and K1...
|
|
Received: 06 July 2007
|
|
|
|
|
|
|
