摘要
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The pomegranate (<i>Punica granatum</i> L.) wilt (<i>Ceratocystis fimbriata</i>) is the burning problem in India and China. The preliminary research was undertaken to know the effect of culture filtrates of vermicompost on growth ...
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The pomegranate (<i>Punica granatum</i> L.) wilt (<i>Ceratocystis fimbriata</i>) is the burning problem in India and China. The preliminary research was undertaken to know the effect of culture filtrates of vermicompost on growth and spores germination of <i>C. fimbriata</i>. The filtrates of vermicompost were obtained from the composted leaf materials of <i>Anacardium occidentale</i>, <i>Azadirachta indica</i>, <i>Calotropis gigantea</i>, <i>Eucalyptus citrodora</i>, <i>Gliricidia maculata</i> and flowers of <i>Jasminum grandiflorum</i>, <i>Parthenium hysterophorus</i>, <i>Pongamia pinnata</i>, <i>Syzygium cumini</i>, <i>Tamarindus indica</i> and <i>Diospyrus</i> spp. The filtrates were mixed with potato dextrose agar (PDA) medium in 1:1 proportion and sterilized in autoclave. The 2 mm infected bits were placed on PDA medium. The observation on fungal growth was recorded. The germination of endoconidia, exoconidia and ascospores was studied with above filtrates of vermicompost. The filtrates collected from lantana, neem, calotropis, jasmine flower extract and neem completely inhibited the growth of <i>C. fimbriata</i> and resulted in least endoconidial, exoconidial and ascospore germination. However, in jasmine the endoconidia, exoconidia and ascospore germination was 0.00, 1.66 and 0.00%, respectively. In control, the endoconidial, exoconidial and ascospore germination was 35.81, 34.18 and 52.25%, respectively. The filtrates collected from vermicompost prepared from lantana, jasmine flower (waste materials obtained from oil extracted jasmine flower from the industries), neem leaf and <i>ekka</i> leaf inhibited the growth of pomegranate wilt pathogen, <i>C. fimbriata in vitro</i> conditions. However, further field studies are essential for the management of pomegranate wilt disease.
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