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Author: search.filters.author.Das, A. P.

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    Propagation of Ginkgo biloba Linnaeus through air-layering in tropical conditions of West Bengal, India
    (University of North Bengal, 2014-03) Choudhury, Dibakar; Das, A. P.
    Ginkgo biloba Linnaeus (Ginkgoaceac), the maidenhair tree, is recognizably similar to fossils dating back to 270 million years. It is variously used in traditional medicine and as an ornamental plant. Almost no or little attentiĆ­on is given in India regarding its cultivation, conservation and management. The present study established the air-layering technique for the vegetative propagation of the species. As much as 80% of air layering has successfully developed roots. This is a low cost and short duration method through which good number of plants can be produced in tropical conditions, which are expected to be better resistant to different odds and can survive on their own roots.
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    Diversity ofTrees in the Darjeeling Foothill Region of Eastern Himalaya
    (University of North Bengal, 2008-03) Rai, U.; Das, A. P.
    Phytosociological investigation using 20 x 20 m quadrats has been made on seven major forest types of Darjiling foothill region within an altitudinal range of 135 m to 1200 m leading to the record of 215 species of trees, 11 species of liana and three species of palms. Analysis of data revealed that the East Himalayan Sal forest showed highest species diversity but have moderate species richness and concentration of dominance. High species diversity and species richness were recorded from Semi Evergreen Mixed forest, Wet Mixed Deciduous Forest & Lower Bhabar Sal Forest with correspondingly low concentration of dominance. Bamboo brake had the lowest species diversity with high concentration of dominance. Computation of similarity index showed a poor relation between different forest types and reflected the developing nature of vegetation. Also, these forests have a high regeneration status with a good species composition. It has also been predicted that the anthropogenic interferences may cause the abrupt change in the structure of these vegetation types.
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    Ethnobotanical studies in India with notes on Terai-Duars and Hills of Darjiling and Sikkim
    (University of North Bengal, 2007-03) Das, A. P.; Ghosh, Chandra; Sarkar, Ajita; Biswas, Rajib
    The very survivability of man is greatly associated with plants since his origin. Plants are responsible for the supply of Man's oxygen, food, medicine, fibre, shelter and what not! Also the relationship between man and environment in general has never been static and is changing continuously. But this is not the case with tribal/ aboriginal communities the world over. The life, culture and traditions of these communities have remained almost undisturbed and static for hundreds of years. They are the living archaeological museums of ancient traditions and cultural heritage of a nation.