Yadav M.,H+ Technology |
Sharma M.P.,H+ Technology |
Prawasi R.,H+ Technology |
Khichi R.,CCSHAU |
And 4 more authors.
Journal of the Indian Society of Remote Sensing | Year: 2014
Haryana has emerged as an important state for Rice & Wheat production in India contributing significantly in the central pool. Mechanized combine harvesting technologies, which have become common in Rice Wheat System (RWS) in India, leave behind large quantities of straw in the field for open burning of residue. Besides causing pollution, the burning kills the useful micro flora of the soil causing soil degradation. There is no field survey (Girdawari) data available with the Government for the areas where stubble burning is taking place. The present paper describes the methodology and results of wheat and rice residue burning areas for three districts of Haryana namely Kaithal, Kurukshetra and Karnal for the year 2010 using complete enumeration approach of multi-date IRS-P6 AWiFS and LISS-III data. In season ground truth was collected using hand held GPS and used to identify area of burnt wheat/rice residues, associated crops and land features. After geo-referencing the satellite images, district images were masked-out and multi-date image data stacks were created. Normalized Difference Vegetation Index (NDVI) of each date was generated and used at the time of classification along with other spectral bands. The non-agricultural classes in the image included: forest, wasteland, water bodies, urban/settlement and permanent vegetation etc. The vector of these non-agriculture classes were extracted from the land use, imported and mask was generated. During the classification non-agriculture area was excluded by using mask of these classes. From this the agricultural area could be separated out. The area was estimated by computing pixels under the classified image mask. In season multi-date AWiFS data along with available single-date LISS-III data between third week of April to last week of May are found to be useful for estimation of wheat residue burning areas estimation. The data between second week of October to last week of November is useful for estimation of rice residue burning areas estimation at district level. © 2013 Indian Society of Remote Sensing.
Meena P.D.,Directorate of Rapeseed Mustard Research ICAR |
Chattopadhyay C.,Directorate of Rapeseed Mustard Research ICAR |
Kumar A.,Directorate of Rapeseed Mustard Research ICAR |
Singh R.,CCSHAU |
And 4 more authors.
Journal of Environmental Biology | Year: 2011
High severity of Altemaria blight disease is a major constraint in production of rapeseed-mustard in India. The aim of this study was to investigate the suppressive potential of chemicals viz., zinc sulphate, borax, sulphur, potash and calcium sulphate, aqueous extracts viz., Eucalyptus globosus (50 g I -1) leaf extract and garlic (Allium sativum) bulb (20 g l -1) extract, cow urine and bio-agents Trichoderma harzianum, Pseudomonas fluorescence in comparison with the recommended chemical fungicide (mancozeb), against foliar disease Altemaria blight of Indian mustard [Brassica juncea (L.) Czern. and Coss] under five different geographical locations of India. Mancozeb recorded the lowest mean severity (leaf: 33.1%; pod: 26.3%) of Alternaria blight with efficacy of garlic bulb extract alone (leaf=34.4%; pod = 27.3%) or in combination with cow urine (leaf=34.2%; pod = 28.6%) being statistically at par with the recommended chemical fungicide. Chemicals also proved effective in reducing Altemaria blight severity on leaves and pods of Indian mustard (leaf=36.337.9%; pod = 27.5-30.1%). The effective treatments besides providing significant reduction in disease severity also enabled increase in dry seed yield of the crop (mancozeb = 2052 kg ha -1; garlic=2006 kg ha -1; control = 1561 kg ha -1). © 2011 Triveni Enterprises Vikas Nagar, Lucknow, INDIA.
Panghal S.,Md University |
Journal of Environmental Biology | Year: 2014
Short- Term effect of different concentrations of NaCI on callus cultures of Jatropha curcas was investigated at different concentration of NaCI (0,20,40,60,80,100 mM). Results showed a decrease in fresh weight of callus cultures when subjected to increasing concentration of salt in the medium. Callus morphology correspondingly changed from off-white to blackish-brown above 40mM to acutely necrotic stage at 100 mM NaCI .The callus cultures after recurrent selection (at 20mM for 20 days) were transferred to salt free optimized callus regeneration medium expressed 90.0% recovery. The callus placed in 40mM, 60mM concentration of NaCI exhibited moderate tolerance and showed 64.0% and 56.0% recovery. In 80mM concentration, callus showed moderate susceptibility and showed 6.9 % recovery of callus. © Triveni Enterprises,Lucknow(India).
Verma R.K.,CCS Haryana Agricultural University |
Yadav P.K.,CCSHAU |
Annals of Biology | Year: 2012
Many bacterial pathogens can now be detected in samples of various kinds without the need to first culture the organism and phylogenetic relationships by using PCR-based methods. PCR-based genotyping technologies are simple and fast. Under the present investigation, the amplified gel electrophorized product (approx. 500 bp), stained with Ethidium bromide was visualized under U.V. light in gel documentation system. The amplified 16S rDNA was digested with two restriction enzymes SauIIIA and Hinfl at 37°C for 2 h to generate amplified ribosomal DNA restriction analysis (ARDRA) profiles, both the restriction enzymes generated 2-3 fragments in bacterial isolates; these fragments were scored by comparison to a low molecular DNA Ladder (50 bp) and analyzed by 1/0 clustering method of the NTSYSpc2.0 programme then a dendrogram displaying hierarchical associations among all isolates was generated. On the basis of similarity coefficient the isolates were divided in five major groups (A, B, C, D and E). Group A and E were found most divergent which have genotypes S. aureus and Streptococcus grp. Q1, respectively. The genotypes Kl. oxytoca and A. hydrophila has 83% similarity in group B, whereas P. flourescens and P. aeruginosa have 99% similarity in group D.
Singh M.K.,CCS Haryana Agricultural University |
Manish,Chaudhary Devi Lal University |
Yadav B.S.,CCSHAU |
Annals of Agri Bio Research | Year: 2012
To know the allelopathic effects of senescent leaf litter of Jatropha curcas on greengram (Vigna radiata) cv. MH-961, clusterbean (Cyamopsis tetragonoloba) cv. HG-563, mothbean (Phaseolus aconitifolius) cv. RMO-40 and pearl millet (Pennisetum typhoides) cv. HHB-67, pot experiment was conducted. Pots were incorporated with dry senescent leaves with soil @ 7.37, 9.82 and 12.28 g/pot. As the doses of Jatropha leaf litter increased, the growth, yield and yield attributes of test crops also increased upto 9.82 g/pot, thereafter, it reduced at 12.28 g/pot but significantly higher than control.