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 Land Races of Ridge Gourd

A.K.M. Quamruzzaman
Horticultural Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701

M. H.Rahman
Horticultural Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701

Md. Nazrul Islam
Horticultural Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701

S.M. L. Rahman
Citrus Research Station, BARI, Jaintapur, Sylhet

B.C. Sarker
Regional Agricultural Research Station, BARI, Jamalpur, Bangladesh

Abstract/ Executive Summary:

The genetic divergence among thirty genotypes of ridge gourd (Luffa acutangula) was estimated using D2 and principal component analysis. The genotypes were grouped into six clusters. The clustering pattern of the genotypes showed high degree of genetic diversity. The highest intracluster distance was noticed for the cluster II (0.882) and the lowest for the cluster III (0.220). The highest inter-cluster distance was observed between cluster I and II (15.045) where as the lowest was observed between cluster IV and V (3.402). Selection for days to 1st male flower open, days to 1st female flower open, fruit diameter, single fruit weight and fruit number/ plant would be more effective for increasing qualitative yield of ridge gourd. On the basis of the present study, suggestions has been made for selecting parents so as to initiate a crossing programme to produce new recombinants with desired characters in ridge gourd.

Keywords: Genetic diversity, Ridge gourd (Luffa acutangula) and cluster

Location: Olericulture Division, HRC, BARI, Gazipur

Start Date: 01-03-2006

End Date: 00-05-2006

Program Area: Variety and Species

Commodity: Ridge gourd

Objectives:

1. To know the the genetic divergence among thirty genotypes of ridge gourd (Luffa acutangula).

Methodology:

The experiment was conducted at the farm of Olericulture Division, HRC, BARI, Gazipur, during the summer season of 2005. The seeds were sown in the polybag on 01 March 2006 and 20 days old seedlings were transplanted in the main field on 20 March 2005.The experiment was laid out in RCB design with three replications. The unit plot size was 7.5 x 1.25m. The land was fertilized with cow dung, urea, TSP, MP, gypsum and zinc @ 20000, 175, 175, 150, 100 and 12 kg/ha, respectively. The total amount of cow dung, TSP, gypsum and zinc and 1/3rd of each of urea and MP were applied during final land preparation and in the pit. The rest of urea and MP were applied in four equal installments at 21, 35, 55 and 75 days after transplanting. The seedlings were transplanted to the main plot maintaining 1.5 x 1.25m spacing. The intercultural operations were done as and when needed. Data on days to 1st male flower open, days to 1st female flower open, node order to 1st male flower open, node order to 1st female flower open, fruit length (cm), fruit diameter (cm), single fruit weight (g), fruit number/ plant, harvest duration (days) and yield/ plant (kg) were recorded from three randomly selected plants per entry per replication. Genetic diversity was estimated. Standard method was followed for determining the group constellations. Canonical analysis was also done to confirm the results of cluster and D2 analysis. Based on D2 values, the thirty genotypes were grouped into clusters using the Genstat 5 computer software.

Source of Information: BANGLADESH RESEARCH PUBLICATIONS JOURNAL; ISSN: 1998-2003 Volume: 1, Issue: 1, Page: 5-12, April - June 2008

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The genotypes were grouped into six clusters. The clustering pattern of the genotypes showed high degree of genetic diversity. The highest intracluster distance was noticed for the cluster II (0.882) and the lowest for the cluster III (0.220). The highest inter-cluster distance was observed between cluster I and II (15.045) where as the lowest was observed between cluster IV and V (3.402). Selection for days to 1st male flower open, days to 1st female flower open, fruit diameter, single fruit weight and fruit number/ plant would be more effective for increasing qualitative yield of ridge gourd. On the basis of the present study, suggestions has been made for selecting parents so as to initiate a crossing programme to produce new recombinants with desired characters in ridge gourd.

Knowledge Management: Journal