Influence of meteorological factors on the development of lentil blight
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Authors
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RAJINDER SINGH and Y.R. SHARMA
Department of Plant Breeding. Punjab Agricultural University, Ludhiana 141 004
Keywords:
Lentil. Ascochyta fabae f. sp. lentis, relative humidity, pycnidiaAbstract
A study was conducted to determine the effects of temperature, light duration and relative humidity (RH) on the growth and sporulation of Ascochyta fabae f.sp. lentis and the development of blight on susceptible lentil variety LL 147. The results showed that the pathogen grew between 10 and 25℃ (12 h dark/light) with maximum mycelial growth at 15-20℃. Pycnidia formed within 5-7 days under the above temperature-light regime. In the absence of light, sporulation was not observed. Blight incidence was higher at higher RH. Highest blight incidence was recorded at 15-20℃ with over 80% RH.
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