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Stability for Maturity and Seed Yield in Indian Mustard

M. M. Ali
Scientific Officer
Oilseed Research Centre, BARI, Joydebpur, Gazipur-1701

M. M. Kadir
Scientific Officer
Agril. Res. Station, Rajbari, Dinajpur

M. A. Z. Chowdhury
SO
Oilseed Research Centre, BARI, Joydebpur, Gazipur-1701

M. M. Akbar
Principal Scientific Officer
BARI, Joydebpur, Gazipur-170

M. A. Wahhab
Director
Oilseed Research Centre, BARI, Joydebpur, Gazipur 170 I. Bangladesh.

Abstract/ Executive Summary:

The experiment was conducted in order to develop an early stable variety of Brassica juncea. Mean sum square due to genotype, environment and interaction showed significant difference for both the characters, days to maturity and seed yield. The genotype JUN-2592 was found to stable for days to maturity and seed yield. The genotypes JUN 2792 was very much sensitive for both the traits and JUN 3018 only for seed yield. There were distinct differences among the genotypes for seed yield. Check variety Daulat were also moderately stable for both the characters. The genotypes JUN 2792 and JUN 4008 showed non-linear trend indicating their sensitivity over the environments.

Keywords: Mustard, Seed yield, Indian mustard, Brassica juncea,

Location: Gazipur, Bangladesh

Start Date: 00-00-1994

End Date: 00-00-1997

Program Area: Variety and Species

Commodity: Mustard

Objectives:

To stud the phenotypic stability of different genotypes in Brassica juncea for days to maturity and seed yield.

Methodology:

The experiment was conducted with eight genotypes along with Daulat as check variety. The entries were grown for three successive rabi seasons of 1994-95, 1995-96 and 1996-97 at Joydebpur, Gazipur. Each growing year were considered as an environment. The experiment was laid out in RCB design having 4 replications. Unit plot size was 10 sq.m. A spacing of 25 em between rows was maintained. Recommended doses of fertilizer were applied in all the seasons to have a good crop. Intercultural operations were done as and when necessary. Data on days to maturity at 80-90% pod ripening stage was recorded. Yield was calculated on the basis of unit plot and converted into ton per hectare. Combined analysis of variance for stability analysis was done. Stability parameters i.e., regression coefficient (bi) and deviation from regression (S²- di ) were calculated according to the model.

Source of Information: Bangladesh J. Agril. Res. 25(3) : 505-509, September 2000

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The genotype JUN-2592 was found to stable for days to maturity and seed yield. The genotypes JUN 2792 was very much sensitive for both the traits and JUN 3018 only for seed yield. There were distinct differences among the genotypes for seed yield. Check variety Daulat were also moderately stable for both the characters. The genotypes JUN 2792 and JUN 4008 showed non-linear trend indicating their sensitivity over the environments.

Knowledge Management: Journal