Evaluation and Multiplication of Common Bean Germplasms Collected from Uva Region
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Date
2013
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Uva Wellassa University of Sri Lanka
Abstract
Common bean (Phaseolus vulgaris L.) is one of the major and very popular vegetable crops in
Sri Lanka. It belongs to family Leguminosae and genus Phaseolus. Uva region plays a major
role in common bean cultivation of Sri Lanka as 2/3 of the common bean cultivation is
commercially done in this region. There are mainly 23 common bean germplasms available
among the farmers in Uva region (Bandara, 2012). There is a good demand for common beans
in the international market (Ariyarathne, 2005). Therefore it is very essential to develop
varieties comprised with promising characters. Thus this research was conducted to evaluate the
common bean germplasm phenotypically and to multiply the collected germplasms which might
be in assistance for the future plant breeding programs.
Methodology
This research was conducted at Uva Wellassa University, Badulla during the period of June to
October 2012. Twenty three germplasms collected from Uva Region were phenotipycally
characterized according to the characterization catalogue for common beans developed by Plant
Genetic Resource Centre, Gannoruwa. There both qualitative and quantitative characters of
leaves, stems, flowers, pods and seeds were considered. The collected germplasms are such as
Kappetiola Nil (KN), Kentucky Wonder Green (KWG), Lanka Butter (LB), Cabri Kalu Ata
(CKalu), Cabri Kaha Ata (CKaha), Maspanna Kaha Ata (MKaha) , Maspanna Kalu Ata
(MKalu), Maspanna, Katugasthota Kaha Ata (KKaha), Katugasthota Kalu Ata (KKalu), Kalu
Ata (Kalu), Kaha Ata (Kaha), Kalu Ata Roll (KAR), Kot Roll (KR1), Dik Roll Kalu (DRK),
Dik Roll Sudu (DRS), Kola Roll (KR2), Kollu, Murunga Brown (MB), Gas Bonchi (GB), Sudu
Bonchi (SB), Dumburu Ata (DA), Black Roll Murunga (BRM). Complete Randomized Design
(CRD) with four replicates was considered as the experimental design.
Collected data were analyzed using the Minitab 16 and SAS 9.2 Statistical Softwares.
Quantitative data were analyzed with one way ANOVA with Fishers LSD value mean
separation process. Qualitative data were tabulated and scores were given for those characters.
A dendogram was created considering the scores of qualitative characters and the mean values
of quantitative characters to identify the similarities of the germplsms.
Results and Discussion
The qualitative and quantitative characters shown in table 1 and 2 are the highly variable
characters among the germplasm. KAR posses the highest inflorescence length and the shortest
is from Maspanna, DRK and Kollu. No. of pods per inflorescence is highest in DRS. Maximum
number of flower buds can be seen in MB and the minimum days to flowering can be observed
in MB, KAR, Kaha, Kalu, KKaha and KR2. Even though the research was carried out for 23
germplasms, the evaluation was only completed for 18 due to the non viability condition of
seeds used for planting.
Description
Keywords
Agriculture, Export Agriculture, Vegetable Cultivation, Crop Production, Crop Production Technology