مطالعه تنوع، وراثت‌پذیری و همبستگی صفات برخی ژنوتیپ‌های نخود زراعی

Plant breeders are required to variability of traits and their correlation with seed yield for improving of characters. This study was conducted in two rainfed and supplementary irrigation conditions based on Randomized Complete Block (RCB) design in Gachsaran research institute during 2010-2011 growing seasons to evaluate variation, genotypic and phenotypic correlation and heritability (H2b) of some chickpea agronomical characters as plant height, day to flowering, day to maturity, 100 seed weight and seed yield. Results revealed that all traits except days to maturity, had significant difference (P≤0.01). Mean comparisons showed that genotypes 13, 17, 16 and 19, on the other hand genotypes 10 and 4 had more and less yield in both conditions, respectively. Heritability of traits except day to maturing was 60-80 and 70-85 percent in rainfed and supplementary irrigation conditions, respectively. Negative correlation between seed yield and plant height (-0.99) and also seed yield and day to flowering (-0.85), in rainfed condition shows the importance of early maturing and dwarfing for high yield in rainfed conditions.