Influence of Glomus intraradices and Trichoderma harzianum on Pepper Fusarium Wilt Control
Two beneficial microorganisms Glomus intraradices and Trichoderma harzianum were tested for their ability to suppress Fusarium wilt of Pepper caused by Fusarium oxysporum f.sp. capsici. The results showed that G. intraradices and T. harzianum controlled the wilt disease reducing disease incidence to (28 ,19.6% and 23 ,14,6%) compared with control (38.3 ,25% ) in the two verities of pepper plant California Wonder and Local verity respectively . This pathogen significantly reduced plant growth as measured by dry root weight and dry shoot weight . Overall, T.harzianum and G. intraradices caused significant increasing in phenol amount (91.3,118.7 and 80.3,104.4 µg g-1 FW) , chlorophyll contents ( 28.3,31.7 and 23.7, 26.4 mg/g FW ), % Carbohydrate (1.63,1.82% and 1.39,1.53% ) compared with control (63 ,81.9 µg g-1 FW ,18.4,20.55 mg/g FW and 1.08, 1.19% ) in the two verities of pepper plant California Wonder and Local verity respectively .