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Relative Importance of Gene Effects in Bitter Gourd (momordica Charantia L.)

M. SHAFIULLAH
Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi-6205, Bangladesh

B. SIKDAR
Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi-6205, Bangladesh

Abstract/ Executive Summary:

Full diallel set was made in bitter gourd (Momordica charantia L.) involving six genetically divergent parents, namely BGGB1, BGGB4, BGGB6, BGGB12, BGGB13 and BGGB14 and their inheritance pattern of yield and yield contributing traits were studied. The crosses showing the highest significant positive specific combining ability (SCA) effects for various characters were BGGB4 × BGGB1 for OL, BGGB14 × BGGB4 for OD, BGGB12 × BGGB1 for FL, BGGB6 × BGGB4 for FD, BGGB14 × BGGB13 for FW and FFW, and BGGB12 × BGGB6 for HFNW.

Keywords: Diallel cross, Gene effect, Bitter gourd

Location: Fruit Research Station, Rajshahi

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Bitter gourd

Objectives:

To evaluate the genotypes BGGB1, BGGB4, BGGB6, BGGB12, BGGB13 and BGGB14 for various yield and yield components.

Methodology:

The six genotypes were derived from the cultigens, collected from different parts of Bangladesh. The field experiment was conducted at the Fruit Research Station, Rajshahi to evaluate the genotypes BGGB1, BGGB4, BGGB6, BGGB12, BGGB13 and BGGB14 for various yield and yield components. The experiment was arranged in a randomized block design with three replications. The rows were spaced at 0.5 m apart with area of 1.5 × 1.5 sq. m per plant. Recommended cultural practices were adopted to raise a good crop. Data were collected from 30 F₁ plants and six parents for days to anthesis of first male flowering (DAMF), days to anthesis of first female flowering (DAFF), ovary length (OL), ovary diameter (OD), fruit length (FL), fruit diameter (FD), fruit weight (FW), fruit flesh weight (FFW) and harvested fruit number per week (HFNW) at edible stage. Data were statistically analyzed for genetic components using diallel techniques.

Source of Information: Bangladesh J. Bot. 36(2): 189-191, 2007 (December)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The crosses showing the highest significant positive specific combining ability (SCA) effects for various characters were BGGB4 × BGGB1 for OL, BGGB14 × BGGB4 for OD, BGGB12 × BGGB1 for FL, BGGB6 × BGGB4 for FD, BGGB14 × BGGB13 for FW and FFW, and BGGB12 × BGGB6 for HFNW. Further, two best combinations as judged from SCA estimates for yield, are BGGB14 × BGGB13 and BGGB6 × BGGB1.

Knowledge Management: Journal