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Research Article Open access CC BY 4.0

Effect of Weather Factors on Severity of Early Blight Incited by Alternaria solani (Ellis and Martin) Jones and Grout in Potato

J. V. Patel, N. M. Gohel, Dhara Prajapati, Darshan M. Parmar

International Journal of Plant & Soil Science · pp. 69–75 · Published 5 Feb 2024

10.9734/ijpss/2024/v36i34399

Abstract

A study was conducted to find out the influence of weather factors, temperature, relative humidity, bright sunshine hour, rainfall, evaporation and wind speed and spore load on the incidence of Alternaria solani (Ellis and Martin) Jones and Grout induced early blight of potato (Solanum tuberosum L.) during 2019 to 2022. Eight weather factors taken from the agrometeorological observatory located at Anand Agricultural University, Anand, Gujarat, India, and were subjected to correlation analysis. The relationship between early blight and concerned weather parameters during Rabi 2020-21 revealed a highly significant positive correlation with evaporation (0.87) and maximum temperature (0.84) at the 0.01 level. PDI was significantly positively correlated with spore load (0.71) and bright sunshine hour (0.64) at the 0.05 level. Whereas Per cent Disease Intensity was negatively correlated with evening humidity (-0.78) at a 0.01 level. During the year Rabi (winter) 2021-22, a substantial negative correlation with evening humidity at the 0.05 level. PDI was positively correlated with spore load (0.79), bright sunshine (0.73) and evaporation (0.68).

Correlation study early blight potato spore load weather factors

References (4)

  1. 1 A review of early blight of potato
  2. 2 Progress and severity of early blight of tomato in relation to weather variables in Jammu province [DOI]
  3. 3 Effect of different dates of planting and weather parameters on early blight disease of tomato [DOI]
  4. 4 Early blight management and its effects on tuber yield of two potato cultivars under varied environmental condition [DOI]

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