Characterization of wheat germplasm for grain yield, quality traits and functional markers

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dc.contributor.advisorYashveer, Shikha
dc.contributor.authorVerma, Priyanka
dc.date.accessioned2022-10-17T04:31:09Z
dc.date.available2022-10-17T04:31:09Z
dc.date.issued2019-08
dc.description.abstractIn the present study, 98 wheat genotypes were characterized for grain yield, quality traits and functional markers. The wheat genotypes were sown in RBD (Randomized Block Design) design in two replications in the field of Wheat and Barley Section, Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar, Haryana (India) during Rabi, 2018-2019 for the evaluation of nine yield and its component characters viz. plant height, number of effective tiller per meter, spike length, number of grain per spike, number of spikelet per spike, 1000-grain weight, grain yield per plot, biological yield per plot. The values of GCV were lower than their corresponding PCV for all the characters studied, indicated the negligible effect of environment on the development of plants. The highest value for GCV and PCV was observed on biological yield per plot (18.09 & 19.18 %) followed by harvest index (15.76 & 16.04 %) and number of grains per spike (14.29 & 14.60 %), respectively. Heritability for broad sense (h2) showed highest for harvest index (96.50 %) followed by number of grains per spike (95.90 %) and biological yield per plot (89%). Genetic advance as 5% of mean was observed highest for biological yield (35.17%) and harvest index (31.89%), indicating a good scope for improvement in grain yield and its component characters. Grain yield per plot was highly and significantly positive correlated with number of effective tillers per plot (0.448), spike length (0.551), number of grains per spike (0.611), number of spikelets per spike (0.588), 1000 grain weight (0.585), biological yield per plot (0.805) and harvest index (0.113). Path analysis revealed that biological yield per plot had the maximum direct positive effect on grain yield per plot (0.600) followed by harvest index (0.573), whereas, all traits contributed indirectly towards grain yield per plot via biological yield per plot except plant height (-0202). The grain yield component traits viz. biological yield per plot, harvest index and number of grains per spike were showing high GCV, PCV, heritability and genetic advance as 5% of mean. Thus, these component traits may be used in wheat breeding programme for further improvement in grain yield. For characterization of quality traits, various biochemical attributes were analyzed viz. protein content, mineral (Fe, Zn), phytates, gluten content, amylose content, amylopectin content, hectolitre weight and sedimentation value. Protein content ranged from 9.4 to 15.2 per cent with mean of 12.2 per cent, iron content from 21.3 to 39.3 mg/kg with mean of 29.3 mg/kg, zinc content from.15.7 to 40.70 mg/kg with mean of 29.60 mg/kg, phytates (μg/g) from 4816.0 to 8757.3 (μg/g) with mean of 7008.5 μg/g, wet gluten content from 8.00 to 37.90 per cent with mean of 24.20 per cent, dry gluten content ranged from 3.00 to 14.11 per cent with mean of 10.96 per cent, total soluble sugar content from 0.86 to 6.16 per cent with mean of 3.05 per cent, starch content from 49.8 to 69.4 per cent with mean of 56.7 per cent, amylose content from 3.02 to 8.45 per cent with mean of 5.48 per cent, amylopectin content from 49.36 to 68.97 per cent with mean of 56.17 per cent, hectolitre weight from 72.0 to 87.30 kg/hl with mean of 80.10 kg/hl, sedimentation value from 19 to 41 ml with mean of 31.2 ml. For functional marker analysis, a total of 6 functional markers were used showed amplificationen_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810189013
dc.keywordsBread wheat, Morphological parameters, Grain yield attributes, Correlation studies, Biochemical, Micronutrients, Functional Markeren_US
dc.language.isoEnglishen_US
dc.pages64 + vien_US
dc.publisherCCSHAU, Hisaren_US
dc.subBiotechnology and molecular Biologyen_US
dc.themeCharacterization of wheat germplasm for grain yield, quality traits and functional markersen_US
dc.these.typeM.Scen_US
dc.titleCharacterization of wheat germplasm for grain yield, quality traits and functional markersen_US
dc.typeThesisen_US
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