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Effect of Different Containers on Moisture Content and Germination of Mustard Seed

D.A. Tithi
Department of Entomology, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh.

M.R. Amin
Department of Entomology, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh.

H.M.S. Azad
Department of Entomology, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh.

M.A. Rahman
Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh.

Abstract/ Executive Summary:

The study was conducted to evaluate the quality of mustard, Brassica juncia var. BARI-9 seed stored for two months in air tight container, poly bag and gunny bag at room temperature and RH. The initial moisture content of the seed was 12.17% but after two months it was increased to 15.55%. This increase of seed moisture content was closely related to room temperature and humidity. The initial germination percentage of seed was 85.83% however, after storage for 2 months in air tight container, gunny bag and poly bag it was declined to 77.33, 73.00 and 67.50%, respectively. Storage condition affects the production of normal and dead seedlings, and the study revealed that seed storage in air tight container was better than gunny and poly bag for mustard seed

Keywords: Mustard, Seed quality, Storing

Location: Entomology Laboratory, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur.

Start Date: 00-04-2008

End Date: 00-07-2008

Program Area: Seed Technology

Commodity: Mustard

Objectives:

To identify the best container for storing mustard seed, Brassica juncia var. BARI-9.

Methodology:

The experiment was conducted in Entomology Laboratory, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur, during the period from April to July 2008. B. juncia var. BARI-9 seeds were collected from the Agronomy Department of HSTU. The experiment was laid out in Completely Randomized Design with three replications. Seeds were stored in three different types of container viz. storage container, air tight container, poly bag and gunny bag. The initial tight with rope. During the storage period, seed samples were taken every 15 days from each container for determination of moisture and germination percentage. Moisture content was determined by using high constant temperature oven method following International Rules for Seed Testing in the Agronomy laboratory of HSTU. From each container 3 g seeds were taken. After grinding the seeds in grinding mill the weighed ground materials were poured separately in a small container with cover and kept in an oven maintained at a temperature of 125-130°C for a period of 2 hours. Germination test was conducted using sand as substratum. The sand was sieved to discard particles bigger than 0.8 mm and smaller than 0.05 mm in diameter. Rectangular plastic boxes were used to put the sand. For every test new sand was used. Seed was placed on a uniform layer on moist sand and then covered to a depth of 10 mm with sand, which was left loose. 200 seeds were planted in each plastic tray and replicated three times. The plastic trays with seed were incubated at room temperature and irrigated at every odd day. After 5 days, germination percentage was recorded. The normal seedlings, abnormal seedlings and ungerminated seed were classified according to the prescribe rules of ISTA. The data were analyzed by analysis of variance using a MSTAT-C statistical computer programme and the mean values were separated by Duncun's Multiple Rangetest (DMRT).

Source of Information: Journal of Science Technology (Dinajpur) Vol. 8: 193-197 (2010), ISSN 1994-0386

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It was observed that germination rates were better in seeds of air tight container and poly bag compared to that of gunny bag. It is clear that high relative humidity prevailed during the storage period. By increasing moisture content of seeds respiratory activity and other physiological activities increased and stored food also decreased. Better germination indices of air tight containers were the resultant of absence of dead seeds as well as lower number of abnormal seedlings.

Knowledge Management: Journal