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Lucknow, India

Bahadur L.,NBRI | Tiwari D.D.,Csa University Of Agriculture And Technology | Mishra J.,KVK Inc | Gupta B.R.,NBRI
Indian Journal of Agronomy | Year: 2013

Nutrient management is one of the major problem of the sodic land due to low organic matter status and toxicity of sodium, which reduced the availability of other nutrients and affects the soil properties. A field experiment was conducted to evaluate the integrated nutrient management options in sodic soil at Shivali Village of C.S.A. University of Agriculture and Technology, Kanpur during 2005-06 and 2006-07. The physico-chemical properties of the soil were pH(2.5) - 8.9, EC(2.5) - 0.61 dS/m, organic carbon - 3.6 g/kg, CaCO3-1.24%, GR-7.92 t/ha, sand-56%, silt- 28%, clay-16% (sandy loam), available N-156 kg/ha, available P-25.3 kg/ha, available K-235 kg/ha and available Zn-0.78 ppm. Results indicated that plant height, fertile tillers, biomass/hill, length of ear, test weight, grain and straw yield of rice (Oryza sativa L.) and wheat {Triticum aestivum (L.) emend. Fiori & Paol} significantly increased by application of fertilizer on the soil test basis in comparison to farmers practice. Further increased the yield and yield attributing characters when organic manures (FYM, pressmud and NADEP compost) added @ 5 t/ha with the recommended doses of fertilizers. Application of organic manure (FYM) integrated with recommended dose of fertilizers and biofertilizers (PSB + BGA/ Azotobacter) further increased the yield and yield attributing characters of rice and wheat which was similar to 125% recommended dose of fertilizers. The maximum grain yield of rice and wheat (5.46 and 3.57 t/ha) was recorded with application of NPKZn based on soil test + FYM @ 5 t/ha + PSB + BGA. Similar trends were also recorded in case of nutrient uptake. In case of microbial populations, maximum bacterial population (94.0 × 105/g soil) and Azotobacter (51.5 × 102/g soil) was recorded with application of NPK Zn based on soil test + FYM @ 5 t/ha + PSB + BGA and maximum PSB count (42.0 × 102/g soil) was recorded in with application NPK Zn based on soil test+PSB+BGA. The Actinomycetes population was not affected by the different treatments. Improvement in soil properties (pH, EC, OC) and soil fertility status (NPK and Zn) was recorded when chemical fertilizers were integrated with organic manures. Source

Singh H.,NBRI | Agnihotri P.,NBRI | Pande P.C.,Kumaun University | Husain T.,NBRI
Environmentalist | Year: 2011

Sacred groves are well recognized in the world in terms of biodiversity conservation. The present study was conducted in the Nakuleshwar sacred grove, in the valley of Thal kedar hill in the Kumaon region of Pithoragarh district in Indian Himalaya, in appreciation of its role in biodiversity conservation. The study aimed at the documentation and inventory of the sacred grove, its phytodiversity, threats and conservation in the Himalayan region, and to achieve this, systematic field surveys were conducted during 2007-2010 covering all four seasons. A total of 83 species from 71 genera and 50 families were identified, of which 43 species are flowering plants, including 7 trees, 7 shrubs, 4 climbers and 25 herbs, and 40 species are non-flowering plants of which lichens are represented by 12 species from 8 genera, bryophytes 6 species from 5 genera, and pteridophytes 7 species from 9 genera, while gymnosperms are represented by a single species. Acer oblongum, Cinnamomum tamala, Cedrus deodara, Coriaria nepalensis act as keystone species in the grove. Ophiopogon inermis is a common herb during the rainy season while Goodyera hemsleyana (Orchid) is a new distribution record for the western Himalaya. A total of 43 species from 38 genera are used ethnobotanically by local people for various ailments. Mahonia nepaulensis, Asparagus adscendens, Thalictrum foliolosum, Cinnamomum tamala and Berberis asiatica are highly exploited species and need to be conserved. Climatic conditions of the grove are moderate and the floristic patch of the grove is completely different from the plant diversity of the surrounding area and matches with the diversified floral wealth of comparatively higher altitudes. Due to anthropogenic pressure, this grove is facing new threats of degradation, hence needing special attention. © 2011 Springer Science+Business Media, LLC. Source

Tiwari A.K.,Sugarcane Research Station | Sharma P.K.,A.P.S. University | Khan M.S.,NBRI | Snehi S.K.,NBRI | And 2 more authors.
Medicinal Plants - International Journal of Phytomedicines and Related Industries | Year: 2010

Bitter gourd (Momordica charantia) is extensively cultivated in India, China and South East Asia for vegetable and traditional medicines. A severe yellow mosaic disease on bitter gourd (M. charantia) with a significant disease incidence was observed during the survey of different locations of Eastern U.P., India in the year 2007. The disease consisted of yellow mosaic accompanied with slight curling on leaves. The whitefly (Bemisia tabaci) population was also observed in the vicinity. The characteristic disease symptoms and whitefly population indicated the possibility of begomovirus infection. PCR was carried out using the total DNA isolated from infected leaf samples and a pair of begomovirus specific primers which resulted in the expected size (∼800 bp) amplicon in 3/6 samples indicating presence of begomovirus. For further identification of the begomovirus, the PCR amplicons were cloned and sequenced (GenBank accession no. EU439260). The sequence data analysis revealed highest 98-93% similarities with several isolates of Tomato leaf curl New Delhi virus (ToLCNDV) at both nucleotide and amino acid levels. The phylogenetic analysis also showed closest relationships of the isolate (EU439260) with various variant of ToLCNDV. Based on highest sequence similarities and closest relationships with ToLCNDV the virus isolated from bitter gourd was considered as an isolate of Tomato leaf curl New Delhi virus. Source

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