S.A. Ganie¹ , M. Y. Ghani¹ , A. H. Lone² , S.M. Razvi³ , M. R Mir⁴ , Khalid R. Hakeem⁵

1. Division of Plant Pathology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, 191 121, India
2. Department of Botany, University of Kashmir, Srinagar, India
3. Division of Plant Breeding and Genetics, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar, India
4. Department of Botany, Aligrah Muslim University, Aligrah, India
5. Faculty of Forestry, Universiti Putra Malaysia, Serdang-43400, Selangor, Malaysia
Author    Correspondence author
Molecular Plant Breeding, 2015, Vol. 6, No. 4   doi: 10.5376/mpb.2015.06.0004
Received: 05 Jan., 2015    Accepted: 14 Jan., 2015    Published: 13 Feb., 2015

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Ganie et al., Role of Weather Factors on Early Blight of Potato under Kashmir Valley Conditions, Molecular Plant Breeding, 2015, Vol.6, No. 4 1-5 (doi: 10.5376/mpb.2015.06.0004)

The effect of weather factors on development of early blight of potato studied during the year 2009 and 2010 , indicated maximum apparent infection rate of 0.155 (unit/day) and 0.165 (unit/day) respectively. The temperature 26.47 and 27.32℃, relative humidity 92 and 91 per cent and precipitation 6.68 and 6.42 mm during 2009 and 2010, respectively, apparently favoured the maximum disease development during these periods. Temperature showed a significant and positive correlation with disease intensity, whereas relative humidity and precipitation showed positive but non significant correlation with disease intensity. Multiple regression analysis revealed that weather factors accounted for 65.5 per cent variation.

Early blight; Potato; Correlation; Weather factors; Apparent infection