Estimate of Genetic Parameters of Grain Yield and Some Agronomic Traits in Durum Wheat Using Diallel Crosses

作     者：Mohammad Ali Hussain AI-Falahy 

作者机构：Department of Field Crops School of Plant Production Faculty of Agriculture and Forestry University of Duhok Kurdistan RegionDuhok 273 Iraq 

出 版 物：《Journal of Agricultural Science and Technology(B)》 (农业科学与技术（B）)

年 卷 期：2013年第3卷第1期

页      码：26-34页

摘      要：Five varieties of durum wheat were crossed in full diallel fashion through 2010/2011 growing season. The five parents and their 20 F1 progenies were grown in 2011/2012 at the farm of faculty of agricultural and forestry, Duhok university, Iraq, using randomize complete block design with three replications to estimate heterosis, heritability and some genetic parameters for yield and its components. The results showed highly significant difference among genotypes for all studied traits. The parent Um Raby-5 had a positive general combining ability effect for most traits including grain yield. The crosses (Kokorete71 ? LD – 357E), (Crezo ? Um Raby-5), (Cimeto ? Um Raby-5), (Cimeto ? crezo) and (Cimeto ? Kokorete 71) exhibited significant desirable specific combining ability effect for most traits. The dominance was greater than additive almost traits. Heritability inbroad sense was high but heritability in narrow sense was low. The expected genetic advance as percent of traits mean was low for all traits. Most crosses showed significant positive heterosis for most traits and two crosses, (Crezo Cimeto) and (Cimeto Um Raby-5) had the highest positive heterosis for the most studied traits including grain yield.

主 题 词：遗传参数估计 农艺性状 籽粒产量 硬粒小麦 杂交种 一般配合力效应 杂种优势 随机区组设计 

学科分类：0905[农学-林学类] 09[农学] 0901[农学-植物生产类] 090501[090501] 

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