S. K. Ghildiyal , C. M. Sharma

Abstract

The present study was undertaken to find out the effect of Hydrogen peroxide on germination of various provenances of Pinus wallichiana and Pinus roxburghii, which had a significant affect on rate and average germination percentage. It has been observed that H²O² treatment has reduced the germination period of these species appreciably down to 8 days and 10 days respectively. Therefore, seeds of these commercially important tree species should be pre- treated particularly with H²O² 1 % v/v for 24 hours to obtain optimum germination. The large sized seeds in Pinus wallichiana (mean germination percentage, 54.66%) and medium sized seeds in Pinus roxburghii (mean germination percentage, 93.33%) have been recorded favourable for getting increased seed germination under laboratory conditions.

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V. P. Khanduri , C. M. Sharma , S. K. Ghildiyal , K. S. Puspwan

Abstract

The present study was conducted in the Keflarnath Forest Division, involving three high altitude villages to study the involvement of local inhabitants/villagers with the forest and their effect on forest composition and regeneration status. Investigation revealed that the average firewood and fodder requirement of the study area was 1093.35 kg/day/village and 4758.65 kg/day/village, respectively. Whole of this firewood is extracted from the adjacent forest. However, the fodder extracted from the forest was maximum 1211.14 kg/day at Sari village and minimum 838.24 kg/day at Makkumath village. The rate of exploitation of forest resources was verified by vegetation analysis where no regeneration has been recorded from all the adjacent forests of the selected villages. The total basal cover of all the species was highest (76.47 m²/ha) at Sari and lowest (46.94 m²/ha) at Krokhi village. The values are comparatively higher than the earlier reported values (5.61.59.39 m²/ha) for similar type of forest, again indicating the greater biotic pressure to the forest. Quercus leucotrichophora was found associated with Lyonia ovalifolia and Rhododendron arboreum in the study sites.

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D. P. Nautiyal , S. K. Ghildiyal , C. M. Sharma

Abstract

Exogenous application of different concentrations of IAA, IBA, NAA, 2,4-D and thiamine wasw tried to propagate vegetatively the three valuable fodder tree species (viz. Ficus roxburghii, F.cunia and F.gibbosa) of Himalayan farm forestry system. Significant ischolar_maining of branch cuttings was achieved in the lower concentrations of IBA and IAA (100ppm) after 12 weeks of treatment. The application of lower concentrations of auxins have also favoured the number of sprouts and number of lateral ischolar_mains in all the three species, whereas, the ischolar_main length was prolific in lower concentrations of IBA, IAA (Ficus roxburghii and Ficus cunia) and 2,4-D and thiamine (Ficus gibbosa).

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