Relationship between meteorological factors and the occurrence of ergot disease (Claviceps microcephala) of Pearl Millet

Gupta, G.K. and Subbarao, G.V. and Saxena, M.B.L. (1983) Relationship between meteorological factors and the occurrence of ergot disease (Claviceps microcephala) of Pearl Millet. Tropical Pest Management, 29 (4). pp. 321-324.

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Abstract

Using four meteorological factors, i.e., atmospheric temperature, relative humidity, sunshine and rainfall, an attempt was made to determine, by a curvilinear regression method, the optimum values for ergot disease (Claviceps microcephala (Wallr.) Tul.) of pearl millet. The optimum values for initiation and spread of the disease were found to be 12 mm mean rainfall, 6 h/day mean sunshine, 75% mean relative humidity and 20°C mean atmospheric temperature from protogyny to early flowering of pearl millet. To quantify the relative importance of these meteorological factors, the coefficient of determination was calculated and this showed that atmospheric temperature contributed 45%, relative humidity 35%, sunshine 10% and rainfall 5% towards the total variation of the ergot infection index.

Item Type: Article
Author Affiliation: All India Coordinated Millet Improvement Project, Central Arid Zone Research Institute, Jodhpur, Rajasthan, 342003, India
Subjects: Plant Protection
Divisions: Millet
Depositing User: Mr. SanatKumar Behera
Date Deposited: 18 May 2012 10:26
Last Modified: 18 May 2012 10:26
Official URL: http://dx.doi.org/10.1080/09670878309370826
URI: http://eprints.icrisat.ac.in/id/eprint/5492

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