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Articles by G.H. Dar
Total Records ( 4 ) for G.H. Dar
  A.R. Dar and G.H. Dar
  Gymnosperms almost a neglected group of plants in Indian subcontinent especially in Kashmir Himalaya deserves special attention in many respects. Gymnosperm species of the Kashmir Himalaya not only dominate forests-the green gold of the State of Jammu and Kashmir, but are source of diverse economic and medicinal products. The stems, bark, young twigs, leaves, berries, fruits, etc. of gymnosperms are exploited to obtain medicines and other useful products. Many gymnosperm species, such as Taxus wallichiana, Ephedra gerardiana and some Juniperus species if used sustainably can provide chief and effective medicines and at the same time strengthen the States economy. The present study gives a brief account of economic, medicinal and ethno botanical potential of the gymnosperms species of this region. In total 19 species falling in 6 families have been dealt in the present communication. The present study is of paramount importance with respect to bio-prospecting. This effort may serve to awaken the concerned, to be conscious about the wealth we possess and sustainable exploitation of this wealth, which is being at present exploited ruthlessly.
  Neelofar Jabeen , A.S. Shawl , G.H. Dar , Arif Jan and Phalisteen Sultan
  A protocol has been developed for in vitro shoot proliferation from callus cultures of Aconitum heterophyllum Wall. Callus initiation occurs from nodal segments on MS media fortified with NAA (0.5 mg L-1) and BAP (0.25 mg L-1). Callus was transferred on Msmediasupplemented with BAP (0.25 mg L-1) for shoot proliferation. The best response for shoot proliferation was obtained on MS media+ NAA (0.25 mg L-1) + BAP (0.5 mg L-1). The well-developed micro shoots were transferred to root induction media containing MS basalmedia + IAA (1.0 mg L-1). The rooted plantlets were finally transferred to green house for hardening and field transfer.
  A.R. Dar , G.H. Dar and Zafar Reshi
  Floristic diversity constitutes an indispensable resource-base for the human livelihood. Plants, being vital components of the biodiversity and the ecosystems they form, are essential for human progress and survival. In the recent past, however, human actions have brought a large number of plant species at the brink of extinction. One of the conservative estimates suggests that 60,000 to 100,000 plant species are threatened worldwide. These include a large number of endemic taxa, which being of considerable phytogeographic importance, need immediate attention of the botanists and conservationists. The Kashmir Himalaya harbours a rich angiosperm-flora, about 152 species of which are endemic exclusively to the Kashmir region. Many of these endemics are of great economic value, especially in food and fodder, local and commercial medicine, etc. Due to over-exploitation, habitat destruction and other anthropogenic activities, together with their innate sensitiveness, many of these endemics have become rare and threatened. This necessitates a thorough study of the threatened endemics of Kashmir so as to pave way for their conservation. The present study aims to dilate upon the taxonomy and the ex situ conservation aspects of five critically endangered endemic flowering-plant species of the Kashmir Himalaya, viz. Aquilegia nivalis, Aconitum kashmiricum, Lagotis cashmeriana, Megacarpaea polyandra and Saussurea costus.
  A.R. Dar and G.H. Dar
  The wealth of vegetation that adorns the earth shows a vast array of floristic diversity ranging from microscopic algae to gigantic Eucalyptus. Among these, gymnosperms, particularly conifers, constitute an important floristic component of evergreen forests by virtue of their multidimensional ecological and socio-economic values. In view of their immense importance, a thorough study has been undertaken to explore the conifers of Kashmir. During the present investigation, a total of 16 species, spread over 9 genera in 3 families, were recorded. Among these, the family Pinaceae with 7 species in 4 genera is the most dominant, while Taxodiaceae with 2 species in 2 genera is the least represented. Out of the total taxa 7 species, belonging to 5 genera, are exotic and exist in cultivation only.
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