tailieunhanh - Epidemiological studies on powdery mildew of pea

The influence of environmental factors on the development of pea powdery mildew (Erysiphe pisi) was studied under field conditions. Epidemiological studies revealed that the apparent rate of disease development was high during 50% flowering to pod initiation stage. Powdery mildew severity showed positively and significantly correlated with maximum temperature and sunshine hours. The correlation was non-significant with minimum temperature and relative humidity. |

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