Effect of Environmental Factors in the Development of Powdery Mildew in Okra [Abelmoschus esculentus (L.) Moench]
Ruparani Diwakar, Ashulata Kaushal, C. P. Khare, Shamsher Alam, Sudha Kiran Tigga, Shanta Sahu, Rohit Kumar Mishra
International Journal of Plant & Soil Science · pp. 348–356 · Published 17 Feb 2024
10.9734/ijpss/2024/v36i34432Abstract
In order to study the effect of environmental factors in the development of powdery mildew in okra [Abelmoschus esculentus (L.) Moench] an experiment was carried out at the College of Agriculture, IGKV, Raipur, Chhattisgarh during kharif (2019-20). The correlation analysis revealed that the age of the crop was significantly, positively correlated and T max, T min and morning RH were significantly, negatively correlated with the disease severity. In addition to this by linear regression analysis, it was observed that plant age (69%), maximum temperature (62%), minimum temperature (60%) and morning relative humidity (46%) contributed in percent disease severity. Based on the proportional measures of extent of infection at different times the apparent rate of infection was found maximum during 70-84 DAS. At this time when the disease progress the average maximum temperature was 29.3℃, minimum temperature 14.9℃, morning relative humidity 87.6% and evening relative humidity 38.33%.
References (6)
- 1 Epidemiological studies on powdery mildew of mungbean and urdbean [DOI]
- 2 Management of Powdery Mildew of Okra Caused by Erysipheci choracearum [DOI]
- 3 Morphological characterization and effect of meteorological factors on development of cucumber powdery mildew
- 4 Epidemiological Factors of Sugar Beet Powdery Mildew [DOI]
- 5 Management studies of okra powdery mildew (Erysiphe cichoracearum) using bio-agents, plant extracts and chemical fungicides
- 6 Chemical Control of Powdery Mildew of Okra
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