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Variability in Vegetative and Reproductive Characteristics of Some Rapeseed Varieties Available in Bangladesh

M D Hossain
Department of Agribusiness, Atish Dipankar University of Science and Technology (ADUST), Dhaka-1213

M Rahman
Senior Officer, Investment Corporation of Bangladesh, Head Office, BDBL Bhaban-8, Rajuk Avenue, Dhaka-1000

M Saha
Department of Agricultural Chemistry, Sylhet Agricultural University, Sylhet 3100, Bangladesh

I Miah
Department of Agricultural Chemistry, Sylhet Agricultural University, Sylhet 3100, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted in the research field of Society and Human Development Organization, Tangail (SAHDOT) during November 2013 to March 2014 to investigate the morphological characteristics of rapeseed varieties Tori-7, SAU Sharisha-1 and Sampad. The seeds were grown under field condition and the vegetative and reproductive characteristics of the cultivars were determined. Data on different characteristics were recorded to find out the differences for different cultivars of rapeseed (Brassica campestris). The highest plant height (98.30 cm) was recorded for the SAU Sharisha-1, while the lowest (80.05 cm) was recorded for Sampad. The maximum number of primary branches plant-1 (9.90) was recorded for the SAU Sharisha-1 and while the minimum (7.80) was recorded for Sampad. The minimum number of secondary branches plant^-1 (4.80) was recorded for cultivar SAU Sharisha-1. The maximum number of siliqua plant^-1 (232.00) was recorded for the SAU Sharisha-1 and the minimum number of siliqua (142.00) was recorded for Sampad. The longest length of siliqua (4.60 cm) was recorded for the SAU Sharisha-1, while the shortest length of siliqua (3.65 cm) was recorded for Sampad. The maximum number of seeds siliqua-1 (17.63) was recorded for cultivar SAU Sharisha-1, while the minimum (12.25) was recorded for Tori7. The highest thousand seed weight (0.883 g) was recorded for the SAU Sharisha-1, while the lowest (0.212 g) was recorded for Sampad. The highest yield (1.17 t ha^-1) was recorded for the SAU Sharisha-1, while the lowest yield (0.89 t ha^-1) was recorded for Sampad.

Keywords: Rapeseed, Brassica campestris, Primary branch, Secondary branch, Siliqua

Location: Research field of Society and Human Development Organization, Tangail (SAHDOT)

Start Date: 00-11-2013

End Date: 00-03-2014

Program Area: Variety and Species

Commodity: Mustard

Objectives:

The present research work has been undertaken in order to analyze the different vegetative and reproductive characters of Tori-7, SAU Sharisha-1 and Sampad.

Methodology:

The experiment was conducted in the research field of Society and Human Development Organization, Tangail (SAHDOT) during November 2013 to March 2014 to investigate the variation in vegetative and reproductive characteristics of rapeseed varieties Tori-7, SAU Sharisha-1 and Sampad. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The experimental plot was opened in the first week of November 2013 with a power tiller, and was exposed to the sun for a week, after one week the land was harrowed, ploughed and cross ploughed several times followed by laddering to obtain a good tilth. Weeds and stubbles were removed, and finally obtained a desirable tilth of soil for sowing of Brassica seeds. The experimental plot was fertilized with at the rate of 10 tons of Cowdung, 250 kg Urea, 175 kg Triple Super Phosphate (TSP), 85 kg Muriate of Potash (MoP), 250 kg Gypsum, 3 kg Zinc Oxide and Boron 1 kg hectare^-1. The entire amount of TSP, MP, Gypsum, Zinc Oxide and Boron was applied during the final preparation of land. Urea was applied in two equal installments at before sowing and flowering. The half amount of urea was applied during final land preparation and the rest half amount of urea was applied as top dressing after 25 days of sowing. Field layout was done after final land preparation. The layout of the experiment was prepared for distributing the variety into the every plot of each block. The total area of the experiment was 784 m2 (56 m×14 m). Each replication size was 56 m×3.5 m and the distance between replication to replication was 1 m. The Brassica seeds were sown in lines each having a line to line distance of 40 cm under direct sowing in the well prepared plot on 17 November 2013. The seeds were placed at about 1.5 cm depth in the soil. After sowing the seeds were covered with soil carefully so that no clods were on the seeds. When the seedlings started to emerge in the beds it was always kept under careful observation. After emergence of seedlings, various intercultural operations were accomplished for better growth and development of the Brassica seedlings. The crop was harvested depending upon the maturity of each variety. Harvesting was done manually. Enough care was taken for harvesting, threshing and also cleaning of Brassica seed.

Source of Information: J. Sylhet Agril. Univ. 2(1):59-63, 2015 ISSN: 2308-1597

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The findings of the experiment indicated that the highest (0.883 g) thousand seed weight was recorded for the SAU Sharisha-1, while the lowest (0.212 g) was recorded for Sampad. The highest yield (1.17 t ha^-1 ) was recorded for the SAU Sharisha-1, while the lowest yield (0.89 t ha^-1 ) was recorded for Sampad. So it can be concluded from the above study that comparatively better yield can be obtained by cultivated SAU Sharisha-1 among the three varieties.

Knowledge Management: Journal