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Some Yield Parameters of Wheat Genotypes
To study the effect of the cross direction in bead wheat, three hybrid combinations (Babyle 113, Iratome), (Sawa, Tamose2) and (Al Hashymya, Al Iraq) were tested for plant height, spike and awn length, number of grains per spike, 1000-grain weight, number of tillers/m and grain yield. The results revealed that the direction of the crosses significantly effect on the number of grains/spike, number of tillers/m and grain yields. Grain yield was positively and significantly correlated with 1000-grain weight, number of grains per spike and tillers. Depend on the results of heritability and genetic advance it was suggested that 1000-grain weight, number of grains per spike and tillers should be given emphasis for future wheat yield improvement programs.
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[1] Z. Akram, S. Ajmaland and M. Munir. 2008. Estimation of correlation coefficient among some yield parameters of wheat under rainfed conditions. Pak J Bot., 40: 1777-1781.
[2] M. Chowdhry, M. Ali, G. Subhani and I. Khaliq. 2000. Path coefficient analysis for water use efficiency, evapo-transpiration efficiency and some yield related traits in wheat. Pak J Biol Sci., 3: 313-317
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[9] S. Kwon and J. Torrie. 1964. Heritability and interrelationships among traits of two soybean population. Crop Sci., 4: 196–198.
[10] N. Dagustu. 2008. Genetic analysis of grain yield per spike and some agronomic traits in diallel crosses of bread wheat (TriticumaestivumL.). Turk J Agric For., 32: 249-258.
[11] M. Hussain, H. Askandar and Z. Hassan. 2013. Selecting high yielding wheat hybrids from a restricted factorial mating design. Sarhad J Agric., 29(2): 173-179.
[12] B. Ahmad, I. Khalil, M. Iqbal and H. Ur-Rahman. 2010. Genotypic and phenotypic correlation among yield components in bread wheat under normal and late plantings. SarhadJ Agric. 26( 2): 259-265.
[13] X. Fan, Y. Zhang, W. Yao, Y. Bi, L. Liu, H. Chen and M. Kang. 2014. Reciprocal diallel crosses impact combining ability, variance estimation, and heterotic group classification. Crop Sci., 54(1):89–97.
[14] M. Khan, F. Mohammad, T. Malik, A. Khan and S. Abbas. 2013. Genetic divergence in f4:6wheat lines for yield and its contributing traits. J Plant Breed Genet., 1 (3) : 169-175.
[15] H. Ahmed, M. Kandhro, S. Laghari and S. Abro. 2006. Heritability and genetic advance as selection indicators for improvement in cotton (Gosspiumhirsutum L.). J Biol Sci., 6 (1): 96-99.
[16] N. Ahmed, M. Chowdhry, I. Khaliqand M. Maekawa. 2007. The inheritance of yield and yield components of five wheat hybrid populations under drought conditions. Indonesian J Agric Sci., 8(2): 53- 59.
[17] B. Monpara and J. Kamani. 2007. Components of variation and associations among yield attributing traits in segregating populations of brinjal. Natnl J Pl Improv., 9(2): 106-110.
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