Abstract: Identifying suitable parental materials is an important
phase in the development of hybrid seeds. Thus, a study was conducted
to determine the genetic variability among 360 chickpea land races and
lines. Appropriate parents selected from a pool of genes of 360 chickpeas
which was carried out during the year 2000-2001 in DARI, Sararoud of Iran.
The experiment included 12 blocks, each contains 20 plots of 2 m rows.
The traits studied were growth type, number of leaflet per leaf, leaflet
size, plant height, days taken for 50% flowering, flower color, flowering
period, days to maturity, pod size, pod per plant, seed numbers per pod,
seed color, seed shape and 100 seed weight. Data based on morphological
and phonological traits were analyzed using SPSS software and the statistical
procedures: correlation coefficient, cluster analysis, principal component
analysis and path analysis. Among the morphological characters, numbers
of branches, pod numbers with CV: 41.77 and 37.25% had higher variation,
respectively while leaflet with CV: 10.49% had minimum variation. Among
the phonological traits the flowering period with CV: 22.02% had highest
and flowering time had the least variability. The seed yield per plant
ranged from 4.27 to 0.41 g and CV: 51.43% reflected highest variation.
The highest correlation coefficient (r = 0.78) was between seed yield
per plant and pod numbers. Chickpeas genotypes could be classified into
four clusters and 63% of the variance were explained by five PCAs. Path
analysis revealed that the pod numbers with 0.745, seed numbers with 0.386,
100 seed weight with 0.268 and single seed with 0.267 had highest direct
effect on seed yield. |