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Yadav S.K.,Allahabad University | Gupta A.B.,iversity Of Agriculture And Technology
Plant Archives | Year: 2013

A field experiment was conducted during the Kharif season of two consecutive years (2000-2001, 2001-2002) to study the effect of different levels of Humaur and multiplex on growth and yield of tomato. The maximum plant height was recorded when treated with 100 ml of multiplex per hectare with out streptocycline while the maximum branching, numbers of fruits were recorded at the treatment of 200 ml/ha multiplex with out streptocycline. However, fruit diameter was highest in the treatment of 100 ml multiplex along with 300 gm streptocycline per hectare. Source

Shekhar C.,iversity Of Agriculture And Technology
Indian Journal of Animal Sciences | Year: 2014

Varied samples (1,132) comprising poultry meat (212), poultry eggs (49), poultry droppings (60), autopsied poultry tissues (60), pork (156), pig faeces (189), cattle dung (105), buffalo dung (103), sheep faeces (11), goat faeces (31), deer faeces (2) and human stool (154) were screened for isolation of Salmonella spp. Total 50 Salmonella isolates were recovered from samples, viz. poultry meat (2), poultry eggs (1), poultry droppings (6), autopsied poultry tissues (16), pork (2), pig faeces (9), cattle dung (6), buffalo dung (3), sheep faeces (4) and human stool (1). The recovered Salmonella isolates belonged to 10 different serovars with most prevalent serovar S. Typhimurium (21) followed by S. Weltevreden (12), S. Ughelli (5), S. Essen (3), S. Elisabethville (2), S. Lagos (2), S. Drogana (2), S. Enteritidis (1), S. London (1) and un-typable Salmonella (1). Salmonella isolates showed extreme variation in resistance (0-100%) against anti-microbial agents. The maximum resistance was observed among Salmonella isolates against sulphamethizole and furazolidone (100% each) followed by kanamycin (50%), gentamicin (44%), nalidixic acid (14%), tobramycin (10%), amikacin, ampicillin, streptomycin and tetracycline (8% each), amoxicillin/ clavulanic acid (6%), norfloxacin (4%), ciprofloxacin and cefotaxime (2% each) and chloramphenicol (0%). A high level of sensitivity in Salmonella isolates was observed against chloramphenicol (100%) and tetracycline (92%). A high multiple antibiotic resistance (MAR) index in a range of 0.133-0.666 was observed in Salmonella serovars. Molecular characterization of Salmonella was performed by targeting amplification of invA gene primer fragment for confirmation of Salmonella spp. in which all isolates were found positive for this gene. Moreover, this gene encodes virulence factor in Salmonella spp. which was exhibited by all Salmonella isolates of the present study. Source

Wang W.-S.,Chinese Academy of Agricultural Sciences | Wang W.-S.,International Rice Research Institute | Pan Y.-J.,Chinese Academy of Agricultural Sciences | Zhao X.-Q.,Chinese Academy of Agricultural Sciences | And 7 more authors.
Journal of Experimental Botany | Year: 2011

An indica pyramiding line, DK151, and its recurrent parent, IR64, were evaluated under drought stress and non-stress conditions for three consecutive seasons. DK151 showed significantly improved tolerance to drought. The DNA methylation changes in DK151 and IR64 under drought stress and subsequent recovery were assessed using methylation-sensitive amplified polymorphism analysis. Our results indicate that drought-induced genome-wide DNA methylation changes accounted for ∼12.1% of the total site-specific methylation differences in the rice genome. This drought-induced DNA methylation pattern showed three interesting properties. The most important one was its genotypic specificity reflected by large differences in the detected DNA methylation/demethylation sites between DK151 and IR64, which result from introgressed genomic fragments in DK151. Second, most drought-induced methylation/demethylation sites were of two major types distinguished by their reversibility, including 70% of the sites at which drought-induced epigenetic changes were reversed to their original status after recovery, and 29% of sites at which the drought-induced DNA demethylation/methylation changes remain even after recovery. Third, the drought-induced DNA methylation alteration showed a significant level of developmental and tissue specificity. Together, these properties are expected to have contributed greatly to rice response and adaptation to drought stress. Thus, induced epigenetic changes in rice genome can be considered as a very important regulatory mechanism for rice plants to adapt to drought and possibly other environmental stresses. © 2010 The Author(s). Source

Kumar S.,iversity Of Agriculture And Technology | Singh A.K.,iversity Of Agriculture And Technology | Singh A.,KVK Inc
Plant Archives | Year: 2011

A field trial was conducted to find out the effect of plant growth regulators and nutrients on shelf life and chemical constituent of guava fruit cv. L-49. The experiment was carried out at main experiment station Horticulture, N.D. University of Agriculture & Technology, Faizabad during the year 2005 and 2006. Sixteen years old trees of guava were sprayed on first before flowering (1 st week of April) second after fruit set (2 nd week of May) with thirteen treatment combination comprising of different levels of GA 3, NAA, KNO 3 and Borax in Randomized Block Design with three replications. Minimum physiological loss in weight, maximum storage stability, T. S. S., total sugars, ascorbic acid and minimum acid contents were recorded with foliar application of GA 3 50 ppm + Borax 0.25 per cent was founds most effective treatment in guava fruit during both the years. In general, all treatment increased all chemical attributes up to 2 days of storage period. There after decreased on prolongation of storage period in guava fruit. Source

Kumar A.,iversity Of Agriculture And Technology | Deen B.,iversity Of Agriculture And Technology
Annals of Biology | Year: 2016

The present investigation was carried out to investigate the studies on changes in physical attributes of wood apple (Limonia acidissima L.) fruits during growth and development during the year 2012-13. The experimental changes in physical attributes during growth and development of wood apple fruits were studied from fruiting to maturity and ripening time of fruits at 30 days intervals. The mature fruit of wood apple had 179.10 g weight and pulp colour changed from light brown to light yellow. There parameters can be used as maturity index for wood apple fruits. The average fruit weight, seed per cent and pulp per cent increased during entire period of study, while shell thickness increased up to maturity thereafter decreased till end of the experiment. From the present studies, it can be concluded that appropriate harvesting time 180 DAFS and pulp colour changed from light brown to light yellow, when fruits attained internal best quality used for shelf-life and processing. Source

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