Study of Hygienic practices of street food vendors in ... - Shiats.edu.in
Study of Hygienic practices of street food vendors in ... - Shiats.edu.in
Study of Hygienic practices of street food vendors in ... - Shiats.edu.in
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The Allahabad Farmer Vol. LXVIII, January - 2013 No. 2Genetic parameters for yield and associated characters<strong>in</strong> bread wheat (Triticum aestivum L.)Mukesh Kumar * , B<strong>in</strong>od Kumar ** and Chandan Kishore **ABSTRACTThe better way <strong>of</strong> exploit<strong>in</strong>g genetic variability with several traits is to estimateheritability and genetic advance that construct a selection <strong>in</strong>dex and comb<strong>in</strong>es<strong>in</strong>formation on all the characters which are hav<strong>in</strong>g decisive role <strong>in</strong> <strong>in</strong>fluenc<strong>in</strong>gthe yield. Therefore, an experiment was conducted <strong>in</strong>volv<strong>in</strong>g 35 wheat genotypesto determ<strong>in</strong>e genetic variability parameters and mutual relationships betweenvarious yield components viz., days to flower<strong>in</strong>g, days to maturity, plant height,number <strong>of</strong> effective tillers per plant, spike length, number <strong>of</strong> gra<strong>in</strong>s per spike,1000 gra<strong>in</strong> weight and gra<strong>in</strong> yield per plant. Significant genotypic differenceswere observed for all the trails studied <strong>in</strong>dicat<strong>in</strong>g considerable amount <strong>of</strong> geneticvariation among genotypes for each characters. The estimates <strong>of</strong> genotypiccoefficient <strong>of</strong> variation (GCV) and phenotypic coefficient <strong>of</strong> variation (PCV)were high for number <strong>of</strong> effective tillers per plant. The rema<strong>in</strong><strong>in</strong>g traits recordedmoderate to low phenotypic coefficient <strong>of</strong> variation (PCV) and genotypiccoefficient <strong>of</strong> variation (GCV) estimates. High heritability coupled with highgenetic advance were exhibited by number <strong>of</strong> gra<strong>in</strong>s per spike and number <strong>of</strong>effective tillers per plant. Thus, these additive gene action was responsible forexpression <strong>of</strong> these traits. Therefore, these characters may serve as effectiveselection parameters dur<strong>in</strong>g breed<strong>in</strong>g programme for crop improvement <strong>in</strong> wheat.Key words: Wheat, variability, heritability and genetic advanceINTRODUCTIONWheat (Triticum aestivum L.) is considered as k<strong>in</strong>g <strong>of</strong> cereals as it provides<strong>food</strong>s to 36% <strong>of</strong> the global population contribut<strong>in</strong>g 20% <strong>of</strong> the <strong>food</strong> calories. It is animportant staple <strong>food</strong> <strong>of</strong> many <strong>in</strong> the world and occupies a unique position as it is used for*PG Student, ** Ph.D ScholarDepartment <strong>of</strong> Plant Breed<strong>in</strong>g and Genetics, Rajendra Agricultural University, Bihar Pusa,Samastipur - 84812573
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