Field Application of Trichoderma Harzianum for Biological Control of Root-Knot Nematodes in Summer Tomatoes

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Harzianum for Biological Control of Root-Knot Nematodes in Summer Tomatoes</title> <meta name="description" content="Field Application of Trichoderma Harzianum for Biological Control of Root-Knot Nematodes in Summer Tomatoes"> <meta name="keywords" content="biological control, Trichoderma harzianum, root-knot nematode, meloidogyne"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" 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</div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Field Application of Trichoderma Harzianum for Biological Control of Root-Knot Nematodes in Summer Tomatoes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Baharullah%20Khattak">Baharullah Khattak</a>, <a href="https://publications.waset.org/abstracts/search?q=Saifullah"> Saifullah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To study the efficacy of the selected Trichoderma isolates, field trials were conducted in the root-knot nematode-infested areas of Dargai and Swat, Pakistan. Four isolates of T. harzianum viz, Th-1, Th-2, Th-9 and Th-15 were tested against root knot nematodes on summer tomatoes under field conditions. The T. harzianum isolates, grown on wheat grains substrate, were applied @ 8 g plant-1, either alone or in different combinations. Root weight of tomato plants was reduced Th-9 as compared to 26.37 g in untreated control. Isolate Th-1 was found to enhance shoot and root lengths to the maximum levels of 78.76 cm and 19.59 cm, respectively. Tomato shoot weight was significantly increased (65.36g) in Th-1-treated plots as compared to 49.66 g in control. Maximum (156) number of flowers plant-1 and highest (48.18%) fruit set plant-1 was observed in Th-1 treated plots, while there were 87 flowers and 35.50% fruit set in the untreated control. Maximum fruit weight (70.97 g) plant-1 and highest (17.99 t ha-1) marketable yield were recorded in the treatments where T. harzianum isolate Th-1 was used, in comparison to 51.33 g tomato fruit weight and 9.90 t ha-1 yield was noted in the control plots. It was observed that T. harzianum isolates significantly reduced the nematode populations. The fungus enhanced plant growth and yield in all the treated plots. Jabban isolate (Th-1) was found as the most effective in nematode suppression followed by Shamozai (Th-9) isolate. It was concluded from the present findings that T. harzianum has a potential bio control capability against root-knot nematodes. <iframe src="https://publications.waset.org/abstracts/22204.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biological%20control" title="biological control">biological control</a>, <a href="https://publications.waset.org/abstracts/search?q=Trichoderma%20harzianum" title=" Trichoderma harzianum"> Trichoderma harzianum</a>, <a href="https://publications.waset.org/abstracts/search?q=root-knot%20nematode" title=" root-knot nematode"> root-knot nematode</a>, <a href="https://publications.waset.org/abstracts/search?q=meloidogyne" title=" meloidogyne"> meloidogyne</a> </p> <a href="https://publications.waset.org/abstracts/22204/field-application-of-trichoderma-harzianum-for-biological-control-of-root-knot-nematodes-in-summer-tomatoes" 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Field Application of Trichoderma Harzianum for Biological Control of Root-Knot Nematodes in Summer Tomatoes