PJB-1998-13
EFFECT OF PHYSICAL PARAMETERS ON THE INCIDENCE OF ROOT AND COLLAR ROT DISEASE IN CHILLIES
A. SALEEM, M.ANSAR, K. HAMID, AND FARHAT F.JAMIL*
Abstract
The effect of physical parameters like temperature, flooding duration and soil type on the incidence of root and collar rot disease of chillies was examined. The disease incidence increased from 0-100% with rise in temperature from 15-30°C producing maximum canker length (4.5 cm) and girdling index (4 em). Gradual increase of flooding period from 0-48 hours enhanced the disease development from 25-100 % with maximum Canker length (3.66 cm) and girdling index at 48 h flooding period. Heavy soils showed 83.3% disease as compared to light medium soil which respectively showed 50 and 66.7% of disease incidence.
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