S. K. Verma , B. S. Rana , B. P. Singh

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B. P. Singh

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No abstract

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B. S. Rana , A. K. S. Parihar , B. P. Singh

Abstract

A total of 13 tree species (MPTS) were planted on sodic land in 1987. Soil profile (upto 1m depth) revealed silt clay loam texture of the soil indicating high pH. Soil organic carbon content and nutrients (N, P and K) declined with increase in soil depth. Of the total species planted, four species viz., Casuarina equisetifolia, Eucalyptus hyhrid, Dalbergia sissoo and Leucaena leucocephala reflected conceivably better growth than rest of the species. Total tree biomass attained by afore-mentioned species at the eight year age was in the order : L. leucocephala (199.6 t ha^-1 ) > C. equisetifolia (197.3 t ha^-1 ) > Eucalyptus hybrid (136.6 t ha^-1 ) > D. sissoo (62.2 t ha^-1).

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S. K. Verma , B. S. Rana , B. P. Singh

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No abstract

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A. Ratna Rao , B. P. Singh

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NWFP contribute significantly in tribal/rural economy. It offers employment to about one million every year. In South Bihar and South Western part of West Bengal the NWFP viz. Mahuwa flowers and seeds, Sal seeds and leaves; Kendu leaves. Tamarind and Mushrooms emerged as major products collected by tribals of this region. Out of total forest revenue of Bihar, about 17% is contributed by NWFP and in West Bengal it is only 1.7% oftotal forest revenue. In South Bihar about 41% families collect Mahuwa flowers and in South Western West Bengal about 73% families collect Sal leaves for augmentation of their income. However, processing technology is lacking in these States which needs to be developed.

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B. P. Singh , P. Kumar

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A Field experiment was conducted at the Indian Lac Research Institute, Namkum, Ranchi duriog 1988 and 1989. The growth analysis results revealed that various parameters had more values in first phase of 60-90 days after sowing (DAS) than advanced stage of the seedling growth (90.105 DAS). Relative growth rate (RGR). Crop growth rate (CGR) and net assimilation rate (NAR) were significantly affected by different date of sowiog in nursery during both the years except in the year 1988 at 90-105 DAS. However, variation in date of sowing did not affect LAR at different periods. The result indicated the need to adopt better management practices at early growth stages for better growth and development.

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B. P. Singh

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The paper describes the biodiversity and need of its conservation in mangrove areas. Different strategies suggested are habitat and species protection, legislation, public awareness, peripheral development and research cum extension measures. The paper discusses different problems of mangrove environment and suggests measures to solve them.

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B. P. Singh , P. D. Ambaskar

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This paper deals with the normalcy in the forests and derivation of structures for normal miscellaneous and pure forests, which will form the goal for the future working. The results of the working could be evaluated with reference to the above structure. Besides, the over all regeneration status of the forest can also be known using this structure.

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B. P. Singh

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No abstract

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D. S. Rao , B. P. Singh

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The present study of wastage of timber at tree harvesting stage in South India reveals an avoidable wastage of about 6% of the volume of tree. Reduction in wastage by use of proper tools of IS standards and their proper maintenance along with training of staff and workers in Basic Logging Techniques with co-operation of Forest Department and Corporations is absolutely essential.

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N. Roychoudhury , Rajesh Bajpai , B. P. Singh

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Tropical tasar silk, a major components of wild silks, popularized in India as "Vanya Silk", is one of the most important NTFPs that produced in nature by caterpillars of a sericigenous insect, Antheraea mylitta Drury (Lepidoptera: Saturniidae). It is commercially exploited for wild silk production in India by aboriginals residing in the central plateau mainly Jharkhand, Bihar, Chhattisgarh, Madhya Pradesh, Orissa, West Bengal, Uttar Pradesh, Andhra Pradesh and Maharashtra. This insect has a long list of 20 host plants but reared mostly on sal (Shorea robusta Roxb.) arjun (Terminalia arjuna Bedd.) and asan (T. tomentosa W.&A.), in the natural forests or plants systematically developed in degraded forest areas. Sal forests provide base for the collection of a large quantity of naturally grown cocoons, Tasar silkworms are reared outdoors and are predominantly bivoltine and trivoltine in nature. The first crop is raised during July-August (seed crop) whereas second crop is reared during September-October (commercial crop). The average annual income due to the collection of tasar cocoons in central India is estimated to be low as compared to that of other tasar states. The probable reasons are scattered distribution of food plants on which the silkworm grows, the absence of profitable plantations, lack of suitable breed and proper knowledge of breeding and multiplication techniques. Tropical tasar, a potential NTFP has vast potential in central India.

Keywords

Tasar Silk, Antheraea Mylitta, NTNF, Forest Dwellers, Central India

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