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Diallel Analysis of Seven Quantitative Traits in Deshi Jute (corchorus Capsularis L.)

RAHIMA KHATUN
Bangladesh Jute Research Institute, Dhaka-1207, Bangladesh

RH SARKER
Department of Botany, University of Dhaka, Dhaka-1000. Bangladesh.

MA SOBHAN
Bangladesh Jute Research Institute, Dhaka-1207, Bangladesh

Abstract/ Executive Summary:

Genetic constitution of yield and its associated traits of Corchorus capsularis L. was investigated using a 10 × 10 full diallel cross experiment. Additive gene action system with partial dominance was predominat for plant height, technical height, base diameter and number of nodes in F₁. Non-allellic interaction was involved in the inheritance of bark weight and stick weight in F₂. The Vr - Wr graph for bark weight and fibre weight of F₁ and F₂showed an additive genetic system with dominance effect. The parents Acc. 4087 and var. A-38 possessed maximum number of dominant alleles for most of the characters. Acc.1833 possessed an excess of recessive genes for all the characters.

Keywords: Diallel analysis, Inheritance, Dominance effect, Corchorus capsularis

Location: Bangladesh Jute Research Institute

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Jute

Objectives:

To study the inheritance of the yield contributing characters of jute in F1 and F2 through the diallel cross.

Methodology:

The experimental materials consisted of ten genotypes of deshi jute (Corchorus capsularis L.) including seven new accessions (three were exotic accessions 3695, 1515 and 4087 and four indigenous accessions 1831, 1832, 1833 and 2146) and three improved varieties (CVL-1, A-38 and CC-45). Crosses were made among the genotypes in all possible combinations including reciprocals. Ninety F1s and 10 parents of deshi jute were grown in a randomized complete block design with three replications at the Bangladesh Jute Research Institute in 2001. The plot consisted of one single row of 3.0 m long with a row to row distance of 30 cm as well as with plant to plant distance was maintained at 6 - 7 cm. Similarly, 90 F2 progenies and ten parents were grown at the Central Jute Agricultural Experiment Station (CJAES), Manikganj in 2002. In F1 and F2 observations were made on 10 randomly selected plants from each row for seven characters plant height (m), technical height (m), base diameter (mm), number of nodes, bark weight (g), fibre weight (g) and stick weight (g). The genetic analysis was made following Hayman (1954) and Jinks (1954).

Source of Information: Bangladesh J. Bot. 39(2): 137-141, 2010 (December)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Additive gene action system with partial dominance was predominant for plant height, technical height, base diameter and number of nodes in F₁. Non-allellic interaction was involved in the inheritance of bark weight and stick weight in F₂. The Vr - Wr graph for bark weight and fibre weight of F₁ and _F2 showed an additive genetic system with dominance effect. The parents Acc. 4087 and var. A-38 possessed maximum number of dominant alleles for most of the characters. Acc.1833 possessed an excess of recessive genes for all the characters.

Knowledge Management: Journal