Diallel Analysis of Single Plant Yield and Some Yield Traits in Durum Wheat (T. durum Desf.) Crosses

Authors : Yüksel Kaya, Ali Topal

Pages : 102-116

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Publication Date : 2001-09-15

Article Type : Research Paper

Abstract :In this study, The inheritance of various yield traits in the population of 4x4 full diallel crosses of the three varieties and one line in durum wheat were investigated. In this research; days to heading, peduncle length, plant height, spikelet number per spike, kernel number per spike, and grain yield per plant were observed in all parents and their hybrid progenies. Additive gene actions were found to be significant for plant height, kernel number per spike, and peduncle length, while both additive and non-additive gene action was determined to be significant for spikelet number per spike and non-additive gene actions were found to be significant for grain yield per plant and days to heading. GCA effects were obtained to be significant for plant height, and grain yield per plant in Kızıltan- 91 cultivar; for plant height, kernel number per spike, spikelet number per spike, peduncle length, and grain yield per plant in Ç-1252 cultivar; for plant height, and days to heading in Çakmak-79 cultivar, also for plant height, kernel number per spike, peduncle length, grain yield per plant, and days to heading in the BDMM line. The hybrid combinations which had significant heterosis and heterobetiosis effects were found for all traits observed. Narrow-sense heritability ranged from 0.28 and 0.85 for all traits while kernel number per spike had the highest narrow-sense heritability value (0.89).
Keywords : : Diallel analiz, makarnalık buğday, verim özellikleri, GKK, ÖKK, resiprokal etki, kalıtım derecesi, heterosis, heterobeltiosis