PJB-2009-341
EFFECT OF SOIL SOLARIZATION ON MANGO DECLINE PATHOGEN, LASIODIPLODIA THEOBROMAE
MUHAMMAD ALI KHANZADA1, ABDUL MUBEEN LODHI1,2 AND SALEEM SHAHZAD1*
Abstract
Polyethylene mulching significantly enhanced the soil temperatures in mulched soils. Soil temperatures were negatively correlated with soil depths therefore affect of mulching was more profound in upper soil layer. Soil mulching with polyethylene sheet for 2 weeks in hot summer was highly effective in reducing soil population densities of Lasiodipodia theobromae. Significantly less recovery of the fungus was recorded from straw pieces that were mulched at the depth of 5 cm for 2 weeks. Similarly, the polyethylene mulching for 15 days at the depth of 5 cm proved highly effective in reducing the conidial viability of L. theobromae. Reduction in L. theobromae inoculum was positively correlated with the duration of mulching and negatively correlated with soil depth.
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