Study of morphological diversity among white common bean breeding lines and landraces collection in the National Plant Gene Bank of Iran.ý
2007
Vaezi, Shahin | Dorri, Hamid | Seraj, Hazrat Qoli | Bayzaei, Esmaeil
The characterization of diversity in gennplasm collections is important to plant breeders for crop improvement and to genebank curators for efficient and effective management of collection. The objective of our study was to describe the phenotypic diversity of the 497 accessions of white beans gennplasm preserved in the National Plant Gene Bank of Iran (NPGI) For the qualitative characters evaluated, considerable morphological variations were observed for pod position and brilliance of seed. The high variation was detected for metric traits such -as number of stem per plant, number of seed per plant and yield per plant respectively, however the lowest diversity was detected for phonological traits. Estimation of correlation coefficients between different pair" of characteristics and stepwise regression revealed that seed number per plant, 100 seed weight and plant height had the largest efect on variation of seed yield per plant, followed by the plant height The highest dissimilarity was identified between 38TN334 and 38TN1104 accessions Based on this analysis 30 accessions number from this collection were selected for advance evaluation.
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