Green Global
Foundation   Journal
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MORPHOLOGICAL CHARACTERIZATION OF FRENCH BEAN (Pages : 21 - 27)

Variability was studied among 21 French bean (Phaseolus vulgaris L.) germplasm collected from different research stations and traditional farming villages of the Bangladesh. The collected genotypes were evaluated in the field at the Plant Genetic Resources Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur during 2013-2014. Qualitative variations were found in plant characters, leaf characters, pod characters and seed characters. Medium and dark intensity of green color in leaf was also noticed among the accessions. However ovate shape pod in cross section and presence of second color in pod were found in only one accession. Among the 21 French bean accessions, 1accession showed short, 12 accessions showed medium and 8 accessions showed long pod beaklengths. Purple color seeds were found in eight accessions whereas, only one accession exhibited cream color seed. All of the accessions exhibited dwarf type plant, pink color of standard, white color of wing, green pod ground and concave shape pod. Quantitative variations were observed among the accessions. Number of pods per plant and hundred seed weight ranged from 5.66 to 29.67 (no.) and 19.16 to 47.28 (g), respectively, where pod width was from 1.05 to 1.40 cm. The highest coefficient of variation was found in pods per plant (44.15%) followed by peduncle length (27.41%), pod beak length (26.39%) and 100 seed weight (21.83%). Principal component analysis was showed thatthe first five principal components accounted for 83.73% of the total variation. The genotypes were grouped into four clusters. The highest inter-clusterdistance was observed between clusters I and IV whereas the maximum intra-clusterdistance was found in cluster I. Therefore, the genotypes belonging these clusters could be selected for future hybridization program.Download