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Mir, Rayees Afzal
- A Survey Report of Nitrogen Fixing Species of Garhwal Himalaya and Some Rhizospheric Enzyme Study in Desert Soil
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Indian Forester, Vol 137, No 3 (2011), Pagination: 333-340Abstract
In an extensive survey to Garhwal Himalaya and arid soil of western Rajasthan. twenty four leguminous nitrogen fixing species were identified including seven herbs, nine shrubs, four climbers and four trees species which were screened for nodulation and nitrogen fixation activity between 400-2100m altitudes. Maximum and minimum nodulation and nitrogen fixation (21881.3 n molesn moles acetylene reduced pl-1 h-1) activity was recorded in Desmodium floribundum at 2000m and Atylosia scarabaeoides (56.4 n moles) at 900m altitude respectively. In desert ecosystem, five herbs, two shrubs and three climbers were tested for rhizophoric soil acid and alkaline phosphate and dehydrogenase activity. Minimum and maximum acid phosphatase activity was recorded in Rhynchosia minima and Indigofera argentea and alkaline phosphatase in Indigofera linnaei Ali, and Indigofera sessiliflora. Whereas, minimum and maximum dehydrogenase activity was observed in Alysicarpus longifolius and Indigofera sessiliflora respectively. The identified herb, shrub and climber species may be useful for conservation of degraded site under harsh climatic conditions in temperate Himalayan and Rajasthan desert ecosystem.Keywords
Nitrogen Fixing, Garhwal Himalaya, Rhizospheric Enzyme, Desert Ecosystem, ClimateCondition
- Assessment of Nitrate Reductase Activity in the Leaves of Terminalia chebula
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Nitrogen 888i.milation, Buffer And Substrate Solution
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Indian Forester, Vol 136, No 9 (2010), Pagination: 1213-1217Abstract
Combinations of different concentrations of substrate (0.10M, O.15M, O.20M, and O.25M KNO3) with different pH of buffer (O.20M, KH2P04 of the pH 6.5,7.0, 7.5, 7.6, 7.7, 7.8, 7.9 and 8.0) soiutions were tried for the nitrate reductase activity of Terminalia chebula leaves. Maximum nitrate reductase activity was observed in the combination of buffer solution of O.20M having pH 7.6 and substrate solution 01 the concentration O.15M.Keywords
Terminalia Chebula Leaves, In-vivo Nitrate Reductase Activity, Standardizations.,Nitrogen 888i.milation, Buffer And Substrate Solution