Nawa Bahar , Prakash Chand

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R. P. Singh , D. V. Negi , Prakash Chand

Abstract

The present study was conducted in the cold desert areas ofSpiti Valley in the State of Himachal Pradesh. Rosa webbiana, seeds should be treated with concentrated sulphuric acid for 20 minutes duration to enhance its germination. It can be propagated by stem cutting and ischolar_main suckers. Stem and branches contribute maximum to the total biomass followed by ischolar_main and leaves in that order. Approximately twenty shoots sprout from single ischolar_main stock and form a colony over barren slopes which checks the erosion. Total biomass on dry weight basis was 5.42 kg/plant and energy ranged from 3.1 to 4.2 K.cal/g dry weight. An average bush accumulates 20615 K.cal of energy per plant.

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R. P. Singh , M. K. Gupta , Prakash Chand

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The autecology or Ailanthus glandulosa Desf. in Western Himalayas was studied. Its biflmass and ischolar_main development was analysed. It is a good soil binding tree species and reproduces through seed and ischolar_main suckers. Seed remains viable for over one year.

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