Abstract
Durum wheat has been subjected to intense cultivation due to its economic importance and it occupies second place after bread wheat in many regions. The experiment was organized in a randomized complete block design with four replications using thirteen newly improved durum wheat genotypes and one check cultivar as Dehdasht. Several traits including plant height, peduncle length, spike length, growth vigority, agronomic score, days to heading, days to physiological maturity, thousand kernel weight, test weight and grain yield were measured. Significant differences were observed for all the traits among durum wheat genotypes indicating considerable amount of variation. The estimates of the coefficient of variation were high for spike length and growth vigority. The number of days to heading ranged from 106.5 (G1 and G3) to 111.8 (G10) while G13 had the longest (146.0) and G2 (142.5) and G11 (142.3) had the shortest days to physiological maturity. The test weight ranged from 378.5 in G10 to 397.0 in G8, but the check cultivar indicated the highest thousand kernel weight (44.0 g). According to grain yield, G3 had the maximum yield (6720 kg ha-1) and G7 had the minimum yield (5047 kg ha-1). The high yielding genotypes had high values for growth vigority, spike length, peduncle length, agronomic score and thousand kernel weight. The information on the agro-morphological traits of the studied durum wheat genotypes will be helpful to plant breeders in constructing their breeding materials and implementing selection strategies.
References
Blum A., 2011. Plant breeding for water-limited environments. Springer Publishing, New York, 258 p.
Boerner A., Schumann E., Fuerste A., Coester H., Leithold B., Roeder MS., Weber WE., 2002. Mapping of quantitative trait loci determining agronomic important characters in hexaploid wheat (Triticum aestivum L.). Theor. Appl. Genet. 105, 921–936.
Dencic S., Kastori R., Kobiljski B., Duggan B., 2000. Evaluation of grain yield and its components in wheat cultivars and landraces under near optimal and drought conditions. Euphytica 113, 43–52.
Dogan R., 2009. The correlation and path coefficient analysis for yield and some yield components of durumwheat (Triticum turgidum var. durum L.) in west Anatolia conditions. Pak. J. Bot. 41, 1081–1089.
Freed R.D., Eisensmith, S.P., Everson E.H., Weber M., Paul E., Isleib E. 1991. MSTAT-C: A Microcomputer Program for the Design, Management, and Analysis of Agronomic Research Experiments. Michigan State University, East Lansing, MI, USA.
Garcia del Moral L.F, Rharrabti Y., Elhani S., Martos V., Royo C., 2005. Yield formation in Mediterranean durum wheats under two contrasting water regimes based on path-coefficient analysis. Euphytica 146, 203–212.
Garcia del Moral L.F, Rharrabti Y., Villagas D., Royo C., 2003. Evaluation of grain yield and its components in durum wheat under Mediterranean conditions. Agron. J. 95, 266–274.
Hashjin M.R., Fotokian M., Agahee H., Sarbrzeh M., Mohammadi M., Talei D., 2014. Genetic diversity of durum wheat genotypes using morpho-protein analysis. Cereal Res. Comm. 42, 1–10.
Karimizadeh R., Mohammadi M., Armion M., Shefazadeh M.K., Chalajour H., 2012. Determining heritability, reliability and stability of grain yield and yield-related components in durum wheat (Triticum durum L.). Bulg. J. Agric. Sci. 18, 595–607
Korkut K.Z., Baser I., Bilgin O., 2001. Genotypic and phenotypic variability, heritability and phenotypic correlation for yield and yield components in bread wheat varieties. Acta Agron. Hung. 49, 237–242.
Kumar B.N.A., Hunshal C.S., 1998. Correlation and path coefficient analysis in durum wheats (Triticum durum Desf.) under different planting dates. Crop Res. Hisar 16, 358-361.
Kumar S., Dwivedi V.K., Tyagi N.K., Kumar S., 2003. Genetic variability in some metric traits and its contribution to yield in wheat (Triticum aestivum L.). Prog. Agric. 3, 152–153.
Mi G., Tang L., Zhang, F., Zhang J., 2000. Is nitrogen uptake after anthesis in wheat regulated by sink size? Field Crops Res. 68, 183–190.
Miralles D.J., Slafer G.A., 1999. Wheat development. In: E.H. Satorre, G.A. Slafer (eds.), Wheat. Ecology and physiology of yield determination, 13–43, Food Products Press, The Harworth Press, New York.
Mohammadi R., Amri A., 2011. Graphic analysis of trait relations and genotype evaluation in durum wheat. J. Crop Improv. 25, 680–696.
Motzo R., Fois S., Giunta F., 2004. Relationship between grain yield and quality of durum wheats from different eras of breeding. Euphytica 140, 147–154.
Pecetti L., Annicchiarico P., 1998. Agronomic value and plant type of Italian durum wheat cultivars from different eras of breeding. Euphytica 99, 9–15, 1998.
Tukey J., 1949. One degree of freedom for non-additivity. Biometrics 5, 232–242.
USDA, 2009. World Agricultural Production, Foreign Agricultural Service, Circular Series WAP 05-09, verified on July 2014, http://www.fas.Usda.gov/wap/circular/2009/0905/ productionfull05-09.
Verma S.R., Yunus M., Sethi S.K., 1998. Breeding for yield and quality in durum wheat. Euphytica 100, 15–18.
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