PJB-2003-113
IN-VITRO EVALUATION OF PLANT EXTRACTS AND ANTAGONISTIC FUNGI AGAINST XANTHOMONAS CAMPESTRIS PV. CITRI (HASSE) DYE
F. IQRAM, M. A. KHAN AND S. M. KHAN
Abstract
Sensitivity of Xanthomonas campestris pv. citri was tested by dual culture plate assays using 10 plant extracts viz. Acacia modesta (Phulai), Acacia nilotica (Babool), Allium sativum (Garlic), Bougainvillea spectabilis (Bougainvillea), Dalbergia sisso (Shisham), Datura alba (Dhatura), Eucalyptus cameldulensis (Sufeda), Ficus religiosa (Pipal), Olea europaea (Olive) and Phyllanthus emblic (Emblic) and six antagonistic fungi viz. Aspergillus flavus, Aspergillus niger, Baeuveria bassiana, Paecilomyces lilacinus, Trichoderma harzianum and Verticillium chlamydosporium. Except Ficus religiosa, all the plant extracts at standard concentration (75 g fresh leaves + 25 mL sterilized water) reduced the multiplication of X. camp. pv. citri significantly compared to control. Alium sativum was the best followed by A. nilotica, D. alba, D. sisso and A. modesta inducing 43
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