Vol. 7, Issue 1 (2019)
Genetic evaluation of winter wheat genotypes under rainfed conditions
Author(s): AA Shah, RA Bhat, BA Bhat and SK Mondal
Abstract: The experimental material of the present study comprised 20 true breeding facultative type winter wheat lines namely (Alfrog, Berserka, Bolal, Mega, Centruck, Jose cambier, Golden valley, Vir 453-47, Saptadhara, WW12 Arkaan, Blue boy, China 84-40022, Drina, Drina NS 720, Norderesprez, WW7, WW21, WW23 and WW25) and were evaluated under rainfed conditions during Rabi 2014-15 and planted on 29th October, 2014 in a randomized block design with three replications. Each entry was planted in four rows in 1m with plant to plant and row to row distance of 5 cm and 25 cm respectively. Of these, the best ten winter wheat lines (Arkaan, Blue boy, China 84-40022, Diana, Diana NS 720, Nordersprez, WW12, WW21, WW23 and WW25) used as females and three spring wheat (PBW175, PBW 644 and WH 1080) were used as males parents to develop the experimental material for line x tester mating design. Analysis of variance for different morphological, yield, root and quality traits revealed that all the 20 winter wheat lines differ significantly for all of the traits with respect to days to 50% flowering (no), days to maturity (no), flag leaf area (cm2), plant height (cm), no.of effective tillers per plant, no.of grains per spike, grain yield per plant (g), 1000 grain weight (g), Biological yield per plant (g), harvest index (%), root number per plant, root length per plant (cm). root volume per plant (ml), root weight (g), proline content (µmol/g), seed protein content (ppm). Seed iron content (ppm), Manganese content (ppm), zinc content (ppm) under rainfed conditions. Different genetic parameters that were used to explain the variability revealed that most of the characters showed moderate to high values of PCV and GCV. The trait viz no. of effective tillers per plant and grain yield per plant (g) showed high value of PCV and GCV, whereas the traits like flag leaf area (cm2), spike length (cm), 1000 grain weigh (g), biological yield per plant (g), harvest index (%), root number, root weight (g), proline content (µmol/g), seed protein content (ppm) had moderate values of PCV and GCV. The traits viz days to 50% flowering (no), days to maturity (no), plant height (cm), root volume (ml), root length (cm), iron content (ppm), manganese content (ppm), zinc content (ppm) had low values of PCV and GCV. All morphological, yield, root and quality traits exhibited low values of environmental co-efficient of variance (ECV). Estimate of heritability and genetic advance expressed as percent of mean were high for traits viz: flag leaf area (cm2), spike length (cm), no.of tillers per plant, no.of grains per plant, 1000 grain weight (g), harvest index (%), root weight (g), proline content (µmol/g) and seed protein content under study. Whereas, the traits as days to 50% flowering (no), plant height (cm), biological yield per plant (g), root number plant, root length per plant (cm), root volume per plant (ml), iron content (ppm) manganese content (ppm), zinc content (ppm) had high PVC and moderate GCV. But the traits like days to maturity has high PCV and low GCV.
Pages: 1064-1071 | 415 Views 66 Downloads
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How to cite this article:
AA Shah, RA Bhat, BA Bhat, SK Mondal. Genetic evaluation of winter wheat genotypes under rainfed conditions. Int J Chem Stud 2019;7(1):1064-1071.
