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Genetic Variability, Heritability and Genetic Advance in Tossa Jute (corchorus Olitorius L.)

M. M. Hussain
CSO
Genetic Resources and Seed Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

S. M. Mahbub Ali
PSO
PTC Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Md. Nazrul Islam
Director (Administration and Finance)
Bangladesh Jute Research Institute Manik Mia Avenue, Dhaka-1207.

C. K. Saha
CSO
PTC Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Abstract/ Executive Summary:

Genetic variability, heritability and genetic advance were studied for eight yield and yield attributes of fourteen elite genotypes of tossa jute and their ninety one F1 hybrids. The genotypes differed significantly for all the characters. Higher genotypic coefficient of variation was observed for dry stick weight, dry fibre weight, plant height, petiole length and green weight. The difference between the corresponding phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) was narrow for plant height, internodal length, petiole length and dry stick weight suggesting that the environment had little influence on the phenotypic expression of these characters. Heritability was high for all the characters. High heritability coupled with high genetic advance was observed for green weight indicates additive nature of the genes for this character. Green weight had comparatively higher values of genotypic coefficient of variation, heritability estimate and highest genetic advance. Thus selection based on this character could be considered more fruitful for making effective selection.

Keywords: Tossa jute, Variability, Heritability, Genetic advance

Location: Experimental field of BJRI, Dhaka, Bangladesh.

Start Date: 10-04-1995

End Date: 07-09-1995

Program Area: Variety and Species

Commodity: Jute

Objectives:

The study was undertaken to find out suitable selection criteria through genetic estimates in tossa jute.

Methodology:

Fourteen parents and their ninety one F₁s were grown in a randomized complete block design with 3 replications in 1995 at the experimental field of Bangladesh Jute Research Institute (BJRI), Dhaka. The parents were Syria-155, Syria-154, YPY-026C, YPY-009C, O-4, O-9897, SM/024C, DS/060C, SU/034C, SU/017C, Y/074C, Nonsoong 1, JRO-7835 and JRO-524. Each entry consisted of three rows of 3.0 m long, spaced 30 cm between the rows and 5-6 cm within the rows. All necessary cultural operations were employed as and when necessary during the whole growing period. Data were recorded for eight quantitative characters namely, plant height (m), base diameter (mm), internodal length (cm), leaf area (sq. cm), petiole length (cm), green weight per plant (g.), dry fibre yield per plant (g.) and dry stick weight per plant (g.). Ten competitive plants from middle row of each plot were randomly selected and harvested at 120 days crop age. Data were recorded for each entry over replication. Analysis of variance, coefficient of variation (genotypic and phenotypic), broad sense heritability and genetic advance were determined using the formula suggested by Panse (9), Burton and Devane(1), Lush (8) and Johnson and Robinson (5) respectively.

Source of Information: Bangladesh Journal of Jute and Fibre Research, 2014, Volume-31, no.1&2, pp. 115-120.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 15000

Total Budget (Tk.) : 15000

Achievement/Findings:

High heritability coupled with high genetic advance was observed for green weight indicates additive nature of the genes for this character. Green weight had comparatively higher values of genotypic coefficient of variation, heritability estimate and highest genetic advance. Thus selection based on this character could be considered more fruitful for making effective selection.

Knowledge Management: Journal