Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Genetic Diversity in Vegetable Pea (pisum Sativum L.)

M. Rahman
Department of Genetics and Plant Breeding,Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

M. Hasan
Department of Genetics and Plant Breeding,Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

R. N. Chowdhury
Department of Genetics and Plant Breeding,Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

N. A. Ivy
Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

M.M. Hossain
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh

Abstract/ Executive Summary:

An investigation was carried out to identify the extent of genetic divergence of seventeen vegetable pea genotypes at the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh. Genetic divergence was estimated using D² and principal component analysis. The genotypes under study fell into 4 clusters. The distribution pattern indicated that the maximum numbers of genotypes (6) were included in cluster II and cluster III and the minimum number in cluster IV (1). The inter-cluster distance was higher than the intracluster distance which indicated wider genetic diversity among the accessions of different groups. The highest inter-cluster distance was observed between II and IV. The lowest inter-cluster distance was observed between clusters II and III suggesting a close relationship among the genotypes of these two clusters. The highest intra-cluster distance was observed for the cluster II. The positive values of vector I and vector II for plant height, 50% flowering and non-reducing sugar indicated that these characters had the highest contribution towards the divergence among the pea genotypes. The genotypes of vegetable pea from cluster II and cluster IV maybe selected as parents in future hybridization program.

Keywords: D2 statistics, Genetic divergence, PCA, Vegetable pea

Location: Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur

Start Date: 00-00-2008

End Date: 00-00-2009

Program Area: Variety and Species

Commodity: Pea

Objectives:

The present investigation was designed to provide information on genetic divergence of 17 genotypes of vegetable pea.

Methodology:

Seventeen genotypes of vegetable pea were studied to measure the diversity among the genotypes at the experimental farm and laboratories of Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur in the year of 2008-09. The field experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data were recorded from randomly selected 10 plants from the plot of each replication on days to 50% flowering, plant height, pod no. per plant, pod length, seeds per pod, biological yield, dry seed yield, seed weight per plant, total seed weight, non-reducing sugar, reducing sugar and total sugar. Mean data for each character were subjected to multivariate analysis viz, principal component analysis (PCA), principal coordinate analysis (PCO), canonical variate analysis (CVA) and cluster analysis (CLSA) using GENSTAT 4.2b (Mahalanobis 1936; Jager, et al. 1983 and Digby, et al. 1989).

Source of Information: Bangladesh J. Pl. Breed. Genet., 26(1): 35-40, 2013

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Genetic diversity was studied to detect the more diverse pea genotypes which might be used in hybridization program. Seventeen genotypes were grouped into four different clusters and the maximum number of genotypes (6) were included in cluster II and cluster III. The highest inter-cluster distance was observed between II and IV while the highest intracluster distance was observed for cluster II. Considerable divergence for all the characters among the genotypes was observed. Considering the obtained results, genotypes of vegetable

Knowledge Management: Journal