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Zonal Yield Trial Rapeseed Mutants (b. Napus)

Dr. M. A. Malek
Chief Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Khadija khatun
Scientific Officer
Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh

Abstract/ Executive Summary:

Six M₇ mutant lines of rapeseed (Brassica napus) along with a check variety Binasarisha-4 and Binasarisha-5 were put into the trial. The trial was conducted in the BINA Head Quater farm, Mymensingh and in the farms of BINA sub-stations at Magura, Ishurdi and Rangpur. The experiment was laid out in a randomized complete block design with three replications. Significant variations were observed among the mutants and check variety for some of the characters in both the locations and combined over locations. On an average, days to maturity varied from 98-103 days, 90-99 days, 94-103 days and 100-102 days at Mymensingh, Magura, Rangpur and Ishurdi, respectively. Most of the mutants had similar or longer duration for maturity with the check varieties. In case of plant height, the mutant MM-256 was the tallest in all locations. Most of mutant lines had taller plant height than the check varieties of Binasarisha-4 and Binasarisha-5 in all locations. The average number of branches ranged from 1.8-3.7, 2.1-2.9, 2.1-2.9 and 1.6-2.7 at Mymensingh, Magura, Rangpur and Ishurdi, respectively. At Mymensingh and Rangpur, MM-10 had highest number branches followed by MM-37, whereas, at Magura and Ishurdi MM-256 had the highest number of branches plant^-1. At Magura, MM-256 had the significantly highest number of siliqua/plant followed by MM-210, whereas no significant difference was found at Mymensingh, Ishurdi and Rangpur. Average number of seeds siliqua^-1 ranged from 25.9-30.7, 27.3-33.1, 20.1-25.7 and 25.9-30.7 at Mymensingh, Magura, Rangpur and Ishurdi, respectively. MM-37 gave the highest seed yield (1666 kg ha^-1) followed by MM-210 which was similar or higher than the two check varieties Binasarisha-4 and Binasarisha-5. At Magura, MM-10 gave highest seed yield (1577 kg ha^-1) followed by MM-210 and MM-37. The mutant lines MM-37 and MM-35 gave the higher seed yield at Ishurdi and Rangpur locations. In combined over locations, MM-37 produced highest seed yield (1479 kg ha^-1) followed by MM-210 (1351 kg ha^-1) and MM-35 (1349 kg ha^-1). Among four locations, the highest seed yield was obtained from Mymensingh (1469 kg ha^-1) followed by Magura (1461 kg ha^-1).

Keywords: Zonal yield trial, Mutants, Yield, Rapeseed

Location: BINA Head Quater farm, Mymensingh and in the farms of BINA sub-stations at Magura, Ishurdi and Rangpur

Start Date: 00-00-2011

End Date: 00-00-2012

Program Area: Variety and Species

Commodity: Mustard

Objectives:

Objective of the study was to evaluate the performance of Six M7 mutant lines of rapeseed (Brassica napus) along with a check variety Binasarisha-4 and Binasarisha-5

Methodology:

Six M₇ mutant lines of rapeseed (Brassica napus) along with a check variety Binasarisha-4 and Binasarisha-5 were put into the trial. The trial was conducted in the BINA Head Quater farm, Mymensingh and in the farms of BINA sub-stations at Magura, Ishurdi and Rangpur. The experiment was laid out in a randomized complete block design with three replications. Seeds were sown on 03 November in BINA Head Quarters 27 October at Magura, 28 October at Ishurdi and 3 November 2011 at Rangpur. Unit plot size was 12 m² (4 m × 3 m) with 25 cm row to row spacing and 6-8 cm from plant to plant within rows. Recommended production packages i.e., application of fertilizers, weeding, thinning, irrigation, application of pesticide etc. were followed to ensure normal plant growth and development. Data on plant height, branches plant^-1, siliquae plant^-1 and seeds siliqua^-1were taken from 10 randomly selected plants from each plot. Maturity period was counted when 70% siliquae were matured. Seed yield of each plot was recorded after harvest and then converted into kg ha^-1. Appropriate statistical analysis were performed for comparison of means of each character.

Source of Information: BINA Annual Report 2011-12, page no. 28-30, BINA, Mymensingh

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The mutants line MM-37 gave the highest seed yield (1666 kg ha^-1) followed by MM-210 which was similar or higher than the two check varieties Binasarisha-4 and Binasarisha-5. At Magura, MM-10 gave highest seed yield (1577 kg ha^-1) followed by MM-210 and MM-37. The mutant lines MM-37 and MM-35 gave the higher seed yield at Ishurdi and Rangpur locations. In combined over locations, MM-37 produced highest seed yield (1479 kg ha^-1) followed by MM-210 (1351 kg ha^-1) and MM-35 (1349 kg ha^-1). Among four locations, the highest seed yield was obtained from Mymensingh (1469 kg ha^-1) followed by Magura (1461 kg ha^-1).

Knowledge Management: Report/Proceedings