Erscheinungsdatum: 06/2012, Medium: Taschenbuch, Einband: Kartoniert / Broschiert, Titel: Biological Control of Basal Rot of Onion, Titelzusatz: Evaluation of Antifungal Activity of Trichoderma and Withania somnifera, Autor: Akhtar, Roma // Javaid, Arshad, Verlag: LAP Lambert Academic Publishing, Sprache: Englisch, Rubrik: Umwelt // Landwirtschaft, Gartenbau, Seiten: 80, Informationen: Paperback, Gewicht: 136 gr, Verkäufer: averdo
Biological control of onion basal rot disease ab 49 € als Taschenbuch: Evaluation of biocontrol agents and organic amendments against onion basal rot caused by Fusarium oxysporum f. sp. cepae. Aus dem Bereich: Bücher, Wissenschaft, Umweltwissenschaft,
Biological Control of Basal Rot of Onion ab 49 € als Taschenbuch: Evaluation of Antifungal Activity of Trichoderma and Withania somnifera. Aus dem Bereich: Bücher, Wissenschaft, Umweltwissenschaft,
Biological control of onion basal rot disease ab 49 EURO Evaluation of biocontrol agents and organic amendments against onion basal rot caused by Fusarium oxysporum f. sp. cepae
In this book, my research work during Ph D programme are published in this book. under this book the details study on Epidemiology & Management of Stemphylium blight disease in Garlic (Allium sativum L.) are taken. For the management, i am worked on varietal screening, Cultural Management, Botanical Management, Biological Management & Chemical Management. This book are very useful to the student as well as farming community which are interested for cultivating spices crop - Onion& Garlic.
Today, the world's population and biodiversity are exposed to a high level of threat when considering water security. Protecting the world's freshwater resources requires diagnostic studies from the local to the global level. This book provides a broad perspective on the application of the common onion as a warning monitoring system for screening environmental contaminants as an indicator of cytotoxicity and genotoxicity. The Allium test has been frequently used to determine water quality and ecosystem health as well as a tool to public health purposes in various areas of application. This assay includes macro (root growth) and microscopic (chromosomal aberration in the root tip cells) parameters by cultivating the onion bulb in the liquid sample. Simplicity, low cost and good chromosomal conditions make the Allium test a highly suitable genetic model for assessing biological risks of contaminants with ethical advantages, since the results can be extrapolated to humans. Its remarkable importance in toxicological and ecotoxicological studies increases as ecology emerges as a new integrative discipline, since the quest for human health is the quest for ecology.
Efficacy of various biocontrol agents and soil organic amendments were evaluated for their potential to manage the basal rot of onion caused by Fusarium oxysporum.f.sp.cepae. Trichoderma viride, Trichoderma harzianum and Pseudomonas sp. were collected from different onion growing areas of Tamil Nadu and they were tested for their antagonistic activity against Fusarium oxysporum.f.sp.cepae by dual culture technique. Among the tested isolates of Trichoderma sp., T. harzianum (TH3) recorded the maximum (82.77%) inhibition. Among the sixty two isolates of Pseudomonas sp. Pf 12 significantly exerted highest (74.68) per cent reduction of mycelial growth of Fusarium oxysporum.f.sp.cepae. Among the different organic amendments, mahua cake (10%) significantly recorded maximum 61.00 per cent reduction of mycelial growth over control. Consortial formulation of Pf 12 + Pf 27 + TH3 recorded the least disease incidence of basal rot under glass house condition
Onion (Allium cepa L.), family Alliaceae, is the second most important horticulture crop all over the world. Basal plate rot disease of onion is caused by common soil fungus Fusarium oxysporum f. sp. cepae that severely deteriorates the produce. Chemical control of soil-borne pathogens provides certain degree of control but at the same time they have bad effects on environment. Therefore, in recent years biological control of plant pathogens has been considered as a potential alternative strategy. In the present study, antifungal activity of methanolic fruit, stem and root extracts of Withania somnifera was evaluated against F. oxysporum f. sp. cepae. Methanolic extracts of leaf and root were fractionated using four organic solvents i.e. n-hexane, chloroform, ethyl acetate and n-butanol. Chloroform and ethyl acetate fractions of methanolic root extract and ethyl acetate fraction of leaf extract showed highest antifungal activity against the target fungal pathogen. In pot trials, combined application of Trichoderma harzianum and W. somnifera leaf manure significantly reduced the incidence and severity of the basal plate rot of onion. This book is very useful for all those researcher