文章基本信息

标题：ASSESSMENT OF GENETIC POTENTIAL OF TOMATO GERMPLASM AGAINST EARLY BLIGHT AND ITS MANAGEMENT
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作者：Hafiz Muhammad Usman Aslam ; Owais Yasin ; Muhammad Zeeshan Mansha 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2020
卷号：29
期号：11
页码：9796-9804
语种：English
出版社：PSP Publishing
摘要：Early blight of tomato caused by Alternaria solani is an economically important disease of tomato worldwide.The current study was designed to evaluate the genetic potential of twenty-six-tomato germplasm against the early blight and to find out the most suitable source of fungicides (cabrio top,dif-enoconazole,mancozeb and curzate M8) and plant extracts (ajwain,garlic and swanjna) to inhibit the growth of A.solani.In field trials,no variety was observed to be immune or highly resistant,1 variety (Tom-11) showed the resistant response with percent disease index (PDI) 9.55.Seventeen varieties were moderately resistant,5 varieties were moderately susceptible and 3 varieties exhibited the susceptible response with 68-70 PDI.In in-vitro results,the cabrio top at 300 ppm,were found to be the highly effective fungicide as it inhibited the 88.08% fungal colony diameter,while ajwain at 15% concentration were inhibited the 74.07% growth of A.solani after 3 days of interval.The overall findings concluded that the Tom-11 showed the resistant response against the A.solani while the fungicide cabrio top and the ajwain extract were found to be highly potent in minimizing the fungal growth.This study provides a suitable exploration to the farmers or researchers,for the available resistant germplasm against early blight and the most promising source of fungicides and plant extracts against A.solani.
关键词：Screening;Fungus;Growth inhibition;Percent disease index.