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Not AvailableIn order to assess groundwater quality and its suitability for irrigation for sustainable crop production, 88 groundwater samples of Lakhan Majra block of Rohtak District, Haryana were collected and evaluated. The samples were analyzed for pH, electrical conductivity (EC), anions (CO32-, HCO3 -, Cl- and SO42-) and cations (Ca2+, Mg 2+, Na+ and K+). In addition to these water quality indices, Sodium adsorption ratio (SAR) and residual sodium carbonate (RSC) were also computed. The study revealed that the EC and pH of water samples varied from 0.10 to 3.80 dS m-1 and 7.4 to 8.5 with a mean value of 1.03 dS m-1 and 7.9, respectively. The relative abundance of major ions for most of the water samples were Na+ > Mg2+> Ca2+ > K+ for cations and Cl- > SO4 -> HCO3O32- for anions. SAR and RSC varied from 5.53 to 39.75 (mmol L-1)½ and nil to 11.00 meq L-1 with an average value of 14.73 (mmol L-1) ½ and 3.65 meq L-1, respectively. Based on EC, RSC and SAR values all the samples were grouped into four major categories viz., good, marginal, poor and very poor. The study revealed that nearly 22.7 percent area of the block is under marginal quality of groundwater, while 27.3 per cent area is in poor to very poor quality of groundwater which is unsuitable for irrigation purpose. Thus, groundwater should be used after mixing canal water for sustainable crop production and reduce environmental pollutionNot Availabl

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Not AvailableIn order to assess groundwater quality and its suitability for irrigation for sustainable crop production, 88 groundwater samples of Lakhan Majra block of Rohtak District, Haryana were collected and evaluated. The samples were analyzed for pH, electrical conductivity (EC), anions (CO32-, HCO3 -, Cl- and SO42-) and cations (Ca2+, Mg 2+, Na+ and K+). In addition to these water quality indices, Sodium adsorption ratio (SAR) and residual sodium carbonate (RSC) were also computed. The study revealed that the EC and pH of water samples varied from 0.10 to 3.80 dS m-1 and 7.4 to 8.5 with a mean value of 1.03 dS m-1 and 7.9, respectively. The relative abundance of major ions for most of the water samples were Na+ > Mg2+> Ca2+ > K+ for cations and Cl- > SO4 -> HCO3O32- for anions. SAR and RSC varied from 5.53 to 39.75 (mmol L-1)½ and nil to 11.00 meq L-1 with an average value of 14.73 (mmol L-1) ½ and 3.65 meq L-1, respectively. Based on EC, RSC and SAR values all the samples were grouped into four major categories viz., good, marginal, poor and very poor. The study revealed that nearly 22.7 percent area of the block is under marginal quality of groundwater, while 27.3 per cent area is in poor to very poor quality of groundwater which is unsuitable for irrigation purpose. Thus, groundwater should be used after mixing canal water for sustainable crop production and reduce environmental pollution.Not Availabl

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In order to assess groundwater quality and its suitability for irrigation for sustainable crop production, 88 groundwater samples of Lakhan Majra block of Rohtak District, Haryana were collected and evaluated. The samples were analyzed for pH, electrical conductivity (EC), anions (CO32-, HCO3 -, Cl- and SO42-) and cations (Ca2+, Mg 2+, Na+ and K+). In addition to these water quality indices, Sodium adsorption ratio (SAR) and residual sodium carbonate (RSC) were also computed. The study revealed that the EC and pH of water samples varied from 0.10 to 3.80 dS m-1 and 7.4 to 8.5 with a mean value of 1.03 dS m-1 and 7.9, respectively. The relative abundance of major ions for most of the water samples were Na+ > Mg2+> Ca2+ > K+ for cations and Cl- > SO4 -> HCO3O32- for anions. SAR and RSC varied from 5.53 to 39.75 (mmol L-1)½ and nil to 11.00 meq L-1 with an average value of 14.73 (mmol L-1) ½ and 3.65 meq L-1, respectively. Based on EC, RSC and SAR values all the samples were grouped into four major categories viz., good, marginal, poor and very poor. The study revealed that nearly 22.7 percent area of the block is under marginal quality of groundwater, while 27.3 per cent area is in poor to very poor quality of groundwater which is unsuitable for irrigation purpose. Thus, groundwater should be used after mixing canal water for sustainable crop production and reduce environmental pollution.Not Availabl

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Not AvailableThe Aravalli region in India is very prone to soil erosion and low hydrological regimes. The present study has been carried out in the Aravalli hill slopes to characterized land resources, identified soil problems to establish appropriate soil conservation measures in risk prone areas and appropriate land management practices. The integrated remote sensing (IRS-P6-LISS-IV and cartosat-1 merged data) and GIS based methodologies were employed for terrain analysis, identification of slope, landform, land use/land cover classes, hydro-geomorphology. Detailed soil resource characterization generated soil depth, texture, drainage condition, soil erosion status, and their related site-specific problems. The soils of the region are varied as per their physiographic set up. Soils of hill/ hill slopes are very shallow to shallow, excessively drained, gravely sandy loam, very severely eroded soils while upper piedmont plains are moderately deep to deep, somewhat excessively drained, loamy sand to sandy loam, moderately eroded while, soils of lower piedmont plains are deep to very deep, well drained, slightly eroded, sandy loam in texture and soils of fluvial channels or abandoned channels are moderately deep to deep, moderately well drained, stratified soils and severely eroded. The site-specific problems/potentials and thematic information generated were integrated, and suggested need based soil and water conservation measures such as contour bunding, staggered contour trenches, mechanical trenches, gully plugging, vegetative bunds, and field bunding to enhance the hydrological regime of the watershed and to check degradation and restore the eroded area for management of soil resources for sustainable production for improving socio-economic condition of the farmers in Aravalli region.Not Availabl

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Not AvailableThe Aravalli region in India is very prone to soil erosion and low hydrological regimes. The present study has been carried out in the Aravalli hill slopes to characterized land resources, identified soil problems to establish appropriate soil conservation measures in risk prone areas and appropriate land management practices. The integrated remote sensing (IRS-P6-LISS-IV and cartosat-1 merged data) and GIS based methodologies were employed for terrain analysis, identification of slope, landform, land use/land cover classes, hydro-geomorphology. Detailed soil resource characterization generated soil depth, texture, drainage condition, soil erosion status, and their related site-specific problems. The soils of the region are varied as per their physiographic set up. Soils of hill/ hill slopes are very shallow to shallow, excessively drained, gravely sandy loam, very severely eroded soils while upper piedmont plains are moderately deep to deep, somewhat excessively drained, loamy sand to sandy loam, moderately eroded while, soils of lower piedmont plains are deep to very deep, well drained, slightly eroded, sandy loam in texture and soils of fluvial channels or abandoned channels are moderately deep to deep, moderately well drained, stratified soils and severely eroded. The site-specific problems/potentials and thematic information generated were integrated, and suggested need based soil and water conservation measures such as contour bunding, staggered contour trenches, mechanical trenches, gully plugging, vegetative bunds, and field bunding to enhance the hydrological regime of the watershed and to check degradation and restore the eroded area for management of soil resources for sustainable production for improving socio-economic condition of the farmers in Aravalli regionNot Availabl

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Not AvailableLand resource characterization and detailed inventorization of soil resources for farm planning was carried out in block level in Haryana as a case study in upper Gangetic plains. Satellite data(IRS-P6, LISS-IV) interpretation in conjunction with legacy data and cadastral maps was undertaken using latest techniques identified broad physiographic units and generated base map for soil survey. Eleven soil series along with eighteen mapping units were identified as phases of soils series in six broad physiographic units. Soil-physiographic relationship was established during detailed soil resource mapping. Soils occur on old alluvial plain are very deep, well drained to moderately well drained, calcareous, loam/clay loam and classified as Fine loamy, Typic Haplustepts /Typic Haplustalfs, while on old alluvial plain with high water table (Salt affected soils) are very deep, imperfectly to poorly drained, calcareous, clay loam, saline-sodic in nature (Fine loamy, Natric Haplustepts/ Typic Halaquepts). Soils on very gently sloping reclaimed sand dunes are sandy/loamy sand, excessively to somewhat drained (Typic Ustipsamments). Soils were characterized, classified for their constraints/potentials and suitability for different uses were identified. The majority of soils are moderately alkaline, slightly saline, high in lime content, and low to medium in available nutrients. Salinity/sodicity, drainage, erosion and low fertility are the major constraints in the region. Resource database generated were interpreted and integrated in Geographical Information System (GIS) for several thematic information viz., landform, land use/land cover, soils, drainage, particle size, and soil salinity/sodicity. Suitable land use options were suggested for each parcel of land by considering its constraints/potentialities. Village level site-specific database was generated for farm planning which could be easily applicable for land use and management strategies in similar area of upper Gangetic plain.Not Availabl

Identification of a major locus conferring resistance to powdery mildew (Erysiphe polygoni DC) in mungbean (Vigna radiata L. Wilczek) by QTL analysis

A major locus conferring resistance to the causal organism of powdery mildew, Erysiphe polygoni DC,, in mungbean (Vigna radiata L. Wilczek) was identified using QTL analysis with a population of 147 recombinant inbred individuals. The population was derived from a cross between 'Berken', a highly susceptible variety, and ATF 3640, a highly resistant line. To test for response to powdery mildew, F-7 and F-8 lines were inoculated by dispersing decaying mungbean leaves with residual conidia of E. polygoni amongst the young plants to create an artificial epidemic and assayed in a glasshouse facility. To generate a linkage map, 322 RFLP clones were tested against the two parents and 51 of these were selected to screen the mapping population. The 51 probes generated 52 mapped loci, which were used to construct a linkage map spanning 350 cM of the mungbean genome over 10 linkage groups. Using these markers, a single locus was identified that explained up to a maximum of 86% of the total variation in the resistance response to the pathogen