advance in path
1.This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance,co-variance and path coefficient analysis,to determine broad-sense heritability,and to estimate genetic advance under selection.The genotypes showed significant difference for all traits,except for percentage of normal seedling.Genetic correlation between conversion efficiency of seed reserve,electrical conductivity with other traits were not significant,showed that selection for any of them might be possible without hampering any other traits.However path coefficient analysis indicated that conversion efficiency of seed reserve,seed reserve utilization ratio have strong direct effect in affecting seedling weight,and that mean germination time has significantly negatively correlated in affecting GI.Moderate to high estimates of broad-sense heritability,genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity,germination index,mean germination time,seed dry weigh,seedling dry weigh,seed reserve depletion ratio indicating the possibility for improving these traits.
