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Stability of Fibre Yield and Its Components in Tossa Jute (corchorus Olitorius L.)

SK. Sarfuddin Ahmed
Bangladesh Jute Research Institute, Manik Miah Avenue, Dhaka-1207, Bangladesh.

M.A. Muttalib
Breeding Division Bangladesh Jute Research Institute, Manik Miah Avenue, Dhaka-1207, Bangladesh.

Azimuddin Ahmed
Bangladesh Jute Research Institute Manik Miah Avenue, Dhaka-1207, Bangladesh.

Abstract/ Executive Summary:

Three tossa and on e white jute genotypes were tested under four early seeding dates to determine the stability of fib re yield and its components. Based o n three stability parameters, the genotype 0-9897 was found suitabe for its consistent performances over wide range of early plantings.

Keywords: Stability,Fiber, Tossa jute

Location: At Manikganj Regional station

Start Date: 00-00-1990

End Date: 00-00-1990

Program Area: Variety and Species

Commodity: Jute

Objectives:

To identify the stable genotype which could perform consistently better for fibre yield and its components over a wide range of early planting dates.

Methodology:

Three tossajute (Corchorus olitorius L.) genotypes namely, 0-9897, 0-1 and Chaitali and one white jute (C. capsularis L.) genotype named CVL-1 were tested in a randomized complete block design with three replications in 1990 at Manikganj Regional station. The environments comprised four early seedings at an interval of 15 days starting from March I to April 15 for estimating the stability parameters. The seeds were sown in four plots each with 3.5 m x 4.5 m having 14 rows of3.5 m long in each replication. Each row and plant was spaced by 30 and 10 em, respectively. Intercultural operations were done as per recommendation. Data for plant height (m), base diameter (mm), green weight (g) and fibre yield (g)/plant were taken from I 0 randomly selected plants/plot at harvest. The data were subjected to pooled analysis. Phenotypic index (pi) was used for easy interpretation and quick decision (Ram et a!., 1970). Stability parameters (bi and S2di) were estimated following Eberhart and Russell ( 1966).

Source of Information: Bangladesh. J. Plant Breed . Genet, 7( I): 49-52, 1994

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Genotype with Pi value not much less than experimental mean and low bi value (around unity, 1.00) along with the lowest estimate of S2di (0.0) is considered suitable for wide range of environment. The levels of stability were not found common and uniform for any traits of the genotypes. Similar observations were also reported by Williams (1960) in tomato. In the present study, the genotype 0-9897 satisfied the above mentioned desired characteristics for all the characters studied and hence would be suitable for widely ranged environments. 0-1 and Chaitali with the highest positive Pi values and bi values greater than unity along with relatively high and significant S2di estimates for fibre yield would be suitable for favourable environment. CVL-1 with positive Pi value and significant bi values for three characters accompanied with relatively high S2di estimates would be a poor yielder under the environments.

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