https://ir.vidyasagar.ac.in/jspui/handle/123456789/6969 2026-04-27T19:23:28Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/6978 Title: Sacred Groves and their Phyto Resources in the Blocks of Hirbandh, Taldangra, Khatra and Indpur, Bankura District, West Bengal Authors: Mitra, Bulganin; Chatterjee, Aritri; Saha, Narayan Chandra; Sarkar, Argha Abstract: Sacred groves (SGs) are small patches of native vegetation traditionally been protected on the grounds of religious faith. Moreover, these ‘botanical islands’ preserve rich floral diversity which includes many rare, endemic and important species of flora. The present survey was conducted in 66 sacred groves of Hirbandh (24), Taldangra (25), Khatra (14) and Indpur (3) in Bankura district. A taxonomic analysis of the Phyto resources from these sacred groves revealed 75 species belonging to 66 genera under 36 families. Hirbandh shows the maximum plant diversity with 56 species, followed by Taldangra (36), Khatra (32) and Indpur (13). Among these plants, 53.94% plant species are having Non-Timber Product (NTP) value, 52.63% are important to have medicinal value, 44.74% plants can be used as fuel wood. Moreover, plants produce edible products (34.22%) followed by plants with ritual & cultural value (21.05%) and plants with timber value (5.26%). Among the 75 plant species reported from these four blocks, only 2% species are very commonly (VC) distributed, whereas 38% rarely (R) available in these sacred groves. Such sacred grove is a tool to restore and save the remnants of these age old patches for present and future generations. Description: PP:1-24 2020-06-01T00:00:00Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/6977 Title: Polyembryony: An Evolutionary Debate Authors: Raut, S. K. Abstract: The tendency of recruitment of offspring at a maximum level is customary among biological species. To ensure the same various strategies have been developed by various group of organisms. Of these, binary fission, multiple fission, fragmentation, budding, vegetative propagation, sporogenesis are means of asexual mode of recruitment. Though parthenogenesis is very much involved with the female gamete where the offspring is produced by female without participation of male gamete could be considered as a passage towards sexual reproduction. According to some authorities, parthenogenesis is one kind of asexual reproduction while many authorities opined that parthenogenesis is a derivative of normal sexual reproduction. However, to get the quality offspring some biological species have evolved the process of recruitment of a good number of offspring following sexual reproduction on way of producing many embryos either individually in respect to union of male gamete with the female ones or from an embryo through cloning devices. Perhaps, to overcome hurdles, on way of evolution, polyembryony is emerged to produce individual with many upcoming characters in biology. But the fact is very much involved with the sexual reproduction even after the production of embryo from a zygote. This sort of recruiting mechanism in organisms is not only an aspect of evolutionary debate but also a question of analysis whether this type of recruitment behavior is influenced by the asexual recruitment devices. Description: PP:25-33 2020-06-01T00:00:00Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/6976 Title: The potential of domestication through human controlled culture of some plants’ species from wild habitats of the state of Sikkim, India Authors: Pradhan, Durga Kumar Abstract: The plant species, growing in the cultivated land of Sikkim Himalaya, are enumerated to document the recent trend of domestication. This information can be utilized for the economic development of communities of Sikkim Himalaya relating to organic production. This paper presented the notes on altitudinal ranges, flowering and fruiting period, local names etc. of domesticated plant species, which are growing as crops. Description: PP:34-47 2020-06-01T00:00:00Z https://ir.vidyasagar.ac.in/jspui/handle/123456789/6975 Title: Cocoon Biology of Sixteen Different Species of Indian Earthworms Authors: Bhattacharjee, Subhalaxmi; Chaudhuri, Priyasankar Abstract: Information on cocoon biology of sixteen different tropical earthworm species like Pontoscolex corethrurus (Műller), Drawida assamensis Stephenson, Drawida papillifer papillifer Gates, Drawida nepalensis Michaelsen, Eutyphoeus comillahnus Michaelsen, Eutyphoeus gammiei Beddard, Metaphire houlleti (Perrier), Dichogaster affinis Michaelsen, Dichogaster bolaui (Michaelsen), Dichogaster modiglianii Rosa, Octochaetona beatrix Gates, Lennogaster chittagongensis (Stephenson), Metaphire posthuma (Vailant), Perionyx excavatus Perrier, Lampito mauritii Kinberg, and Polypheretima elongata (Perrier) are presented in this paper. Detailed cocoon morphology is made available here. Fecundity of peregrine species like P. excavatus, P. corethrurus, P. elongata, D affinis, D modiglianii, D. bolaui, O. beatrix have been found to be high and cocoon production is also continuous in them. Whereas fecundity is much lower in native species like E. gammiei, E. comillahnus. A positive relationship between size of adult and cocoon size has also been found. Room temperature during incubation had been found to affect incubation period. The more continuous and high rate of cocoon production and high hatching success in P. corethrurus, O. beatrix, D. affinis, D. bolaui, D. modiglianii approve their usage in vermiculture based technology. The geophagous species like P. corethrurus and O. beatrix can be used for improvement of quality of different land systems while phytogeophagous species can be made available for stabilization of organic wastes. Description: PP:48-66 2020-06-01T00:00:00Z