Browsing by Subject "Soil"
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Item Open Access Change of vegetation structure in Gorumara National Park due to anthropogenic interferences(University of North Bengal, 2009-03) Sarkar, A; Sarkar, S; Das, APThe impact of Human intervention on species composition, biomass and soil structure in the exploited and unexploited areas of Shorea robusta forest in a part of Gorumara National Park has been evaluated. The areas are adjacent to the Bichhabhanga-Saraswati Eco-Development Committee. The tree species are identical to both areas but differ in their density, frequency and IVI. Tree biomass is smaller in disturbed areas as compared to non-disturbed areas. Due to over exploitation changes occurred in the physical characters of soil. Crown cover also varies significantly within the two sites.Item Open Access Immunodetection of fusarium graminearum,trichoderma harzianum and trichoderma viride in soil,their interaction and possible role in the development of root disease of soybean(University of North Bengal, 2002) Basu, Chaitali; Chakraborty, B NItem Open Access Morphological and Biochemical Characterization of Novel Cellulose and Starch Degrading Bacteria Isolated from the Rhizospheric Soil of Dendrocalamus minor and Musa sp.(University of North Bengal, 2023) Chettri, Neha; Singh, Rishika; Misra, Megha; Sarkar, Sulagna; Toppo, Prabha; Bhandari, Jnan Bikash; Mathur, PiyushThe rhizosphere is the most active region of soil where plants and microorganisms live in close association and exhibit complex interactions. In the present study, rhizospheric soil samples were collected from bamboo and banana growing well in University of North Bengal campus. Cellulolytic and amylolytic bacteria were isolated from these samples through serial dilution technique and were identified on the basis of morphological and biochemical characteristics. The study showed presence of four isolates mostly from genera Bacillus sp. from rhizosphere of bamboo capable of degrading cellulose while five isolates (Rummeliibacillus sp., Lysinibacillus, Brevibacillus, and Bacillus) from rhizosphere of banana and degrade starch respectively. The study although preliminary but will prove valuable for the extraction of these enzymes from these rhizospheric isolates and will be highly appreciated for their application in biotechnology sector.Item Open Access Studies on soil microbial diversity of Darjeeling hills and their evaluation for utilization in the improvement of crop health(University of North Bengal, 2013) Sunar, Kiran; Chakraborty, B.N. and Chakraborty, U.