Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810042146
Authors: NAGARAJ S. B.
Advisor: Dr. M. N. SREENIVASA
Title: ISOLATION, CHARACTERIZATION, SCREENING AND SELECTION OF AN EFFICIENT AM FUNGUS FOR ASHWAGANDHA (Withania somnifera L.)
Publisher: University of Agricultural Sciences, Dharwad
Language: en
Type: Thesis
Agrotags: null
Keywords: ISOLATION, CHARACTERIZATION, SCREENING AND SELECTION OF AN EFFICIENT AM FUNGUS FOR ASHWAGANDHA (Withania somnifera L.)
Abstract: Ashwagandha (Withania somnifera L.) has tremendous medicinal values. The ashwagandha berries and leaves are locally applied to tumors, tubercular glands, carbuncles and ulcers. The main active constituents are alkaloids and steroidal lactones. These include tropine and cuscohygrine. In Ayurveda, Withania is widely claimed to have potent aphrodisiac, sedative, rejuvenative and life prolonging properties. The present study emphasized the isolation, characterization, screening and selection of arbuscular mycorrhizal (AM) fungi from ashwagandha growing areas of Karnataka. The efficient AM fungal isolates were tested at different phosphorus levels, Mycorrhizal dependency and mycorrhizal inoculation effect on ashwagandha was also worked out. Further, an attempt was made to produce manoxinic culture of AM fungus in artificial media. Additionally, the growth promoting ability of efficient AM fungal isolate was evaluated in pot as well as in field condition. The results of this study clearly brought out AM-G-9a to be an efficient isolate of AM fungus for ashwagandha as it might have a better adoptability to the local conditions. The inoculation of this isolate resulted better plant nutrition, alkaloid content, growth and yield of ashwagandha in both pot and field condition. The shelf life of soil based inoculum was 3 months at room temperature while it was 5 months under refrigerated condition.
Subject: Agricultural Microbiology
Theme: ISOLATION, CHARACTERIZATION, SCREENING AND SELECTION OF AN EFFICIENT AM FUNGUS FOR ASHWAGANDHA (Withania somnifera L.)
These Type: Ph.D
Issue Date: 2014-11
Appears in Collections:Thesis

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