Volume : 6, Issue : 2, February - 2017

Bio control effect of Trichoderma viride against F. oxysporum on Tomato vegetable crop under nursery study

Prabha, T, Rajesh Kannan, V, Senthil Kumar, R

Abstract :

<p>&nbsp;<span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">In the present investigation the biocontrol effect of </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Trichoderma viride </i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">against </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Fusarium oxysporum</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;"> on Tomato vegetable crop under nursery experiments. The collected soil sample used to isolate fungal pathogens and antagonistic fungi. Isolated colonies were identified cultural and morphological characters. In this study many type of fungal colonies were identified among the isolate the dominant fungal pathogen and antagonistic fungi were selected. The separated colonies were confirmed as </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Fusarium sp</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;"> and </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Trichoderma viride.</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;"> To analyse the antagonistic activity of </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Trichoderma viride</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;"> against </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Fusarium sp. </i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">using various methods. In this study </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Trichoderma viride</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;"> produced good antagonistic activity against </span><i style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">Fusarium sp.</i><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">&nbsp; </span><span style="font-family: &quot;Times New Roman&quot;, serif; font-size: 12pt; text-align: justify; text-indent: 0.5in;">The biocontrol agent resulted in increase in soil fertility, control of minor pathogens and increase in general health of plants, ultimately leading to an increase in plant metabolism. If enhanced the growth producing stimulating factors.</span></p> <p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;text-align:&#10;justify;text-justify:inter-ideograph;text-indent:.5in;line-height:150%;&#10;mso-layout-grid-align:none;text-autospace:none"><span lang="EN-IN" style="font-size:12.0pt;line-height:150%;font-family:&quot;Times New Roman&quot;,serif"><o:p></o:p></span></p>