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Effect of Containers on Seed Quality of Storage Soybean Seed

U.S. Monira
Quality control department, Supreme Seed Company ltd.

M.A.A. Mamun
Department of Soil Science, Hajee Mohammad Danesh Science and Technology University

M. M. Aktar
Agronomy department, Hajee Mohammad Danesh Science and Technology University

M. H. A. Amin
Department of Agroforestry, Hajee Mohammad Danesh Science and Technology University

Abstract/ Executive Summary:

The main goal of the study was the effect of storage containers on the quality of Soybean seed. The experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University. Current investigation demonstrates the moisture content, germination and seed health of soybean seed. The initial moisture content and germination percentages were kept in three types of containers such tin container, poly bag and cloth bag and stored at room temperature and relative humidity for the study period. After initial quality assessment seed were kept in different containers to observe the deterioration pattern. Among the three containers, seeds of cloth bag absorbed more moisture from surrounding atmosphere. The moisture content increased with advanced of storage period but the increasing rate was higher in the seeds of cloth bag. The initial germination percentage of seeds in tin container, polythene bag and cloth bag was 91.32%, 89.15% and 88.40% respectively but after storage it was declined. When seed moisture% is increasing the rate of germination% is decreases and the deterioration rate was also highest in seeds of cloth bag. The shoot and root length of seedling was lowest at the end of storage in cloth and the lowest seedling vigor. In case of dry weight per plant of soybean seed decreases all cases but the rate of deterioration is highest in cloth bag. So, cloth bag is not safe for soybean seed storage for long time than tin container and polythene bag. Because the rate of moisture absorbance was higher in cloth bag than tin container and polythene bag.

Keywords: Soybean seed, Seed quality and container storage

Location: The out reach building of BSMRAU, Salna, Gazipur

Start Date: 00-10-2007

End Date: 00-12-2007

Program Area: Postharvest and Agro-processing

Commodity: Soybean

Objectives:

1. The present research work was undertaken to evaluate the effects of abiotic factors (temperature, relative humidity) and biotic factors (insect and fungi) on the seed moisture and seed germination as stored container during the storage time, nature and status of damage of stored soybean seed.

Methodology:

The investigation was carried out at the out reach building of BSMRAU, Salna, Gazipur during 0ctober, 2007 to December, 2007. Seeds were kept in three containers such as tin containers, poly bag and cloth bag and stored at room temperature and relative humidity for 2 months. During the storage period Seeds samples were taken every 10 days from the containers for determination of change of moisture content (Wet basis), germination percentage, presence of insect and diseases. Moisture content test - Moisture content was determined by using high constant temperature oven method following International Rules for Seed Testing in the Agronomy laboratory of BSMRAU. Around 5 g of seeds from each 6 containers were taken and weighed. After weighing of seeds, were poured in a small container with cover and kept in an oven maintained at a temperature of 103^oC for a period of 18 hours. The moisture content of seeds (wet basis) was determined by standard formula. Germination capacity test - Germination percentage was calculated. Seedling vigor - Germination rate (GR) was calculated from a daily count of germinated seeds until it reached a constant value. Germination index - Germination index (GI) was calculated using the standard formula. Recording of weather data - For recording weather data, Reading of dry bulb and weight bulb temperature and relative humidity of inside the room was recorded in every day from the beginning of the observation to 45 days after storage. For the observation of biotic factor that influence seed quality, 50 g of seeds were taken and observed the numbers and kind of insects or pathogen were present.

Source of Information: BANGLADESH RESEARCH PUBLICATIONS JOURNAL; ISSN: 1998-2003, Volume: 7, Issue: 4, Page: 421-427, November - December, 2012

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The effect of storage containers environment at different storage period on the quality of Soybean seed. The initial moisture content of seeds in tin container, polythene bag and cloth bag were 13.3%, 13.1% and 12.2% but it was increased with increasing storage time. The increasing rate was higher in seeds of cloth bag. The initial germination percentage of seeds in tin container, polythene bag and cloth bag seeds were 91.32%, 89.15% and 88.40% but after storage it was declined. The decline rate is higher in seeds of cloth bag. The initial abnormal seedling of seeds in tin container, polythene bag and cloth bag seeds were 5.32%, 5.45% and 6.63% but it was increased with increasing storage time. The increasing rate was higher in seeds of cloth bag. The initial dead seed of seeds in tin container, polythene bag and cloth bag seeds were 3.56%, 5.40% 4.97% but it was increased with increasing storage time. The increasing rate was higher in seeds of cloth bag. The initial root and shoot length of seeds in tin container, polythene bag and cloth bag were 15.04 cm & 13.3 cm, 10.95 cm & 12.60 cm and 8.24 cm & 11.15 cm but it was decreased with increasing storage time. The decreasing rate was higher in seeds of cloth bag. The initial root and shoot dry matter (DM) of seeds in tin container, polythene bag and cloth bag were 11.84 mg, 10.56mg, and 9.59mg but it was decreased with increasing storage time. The decreasing rate was higher in seeds of cloth bag .Germination index is lower in cloth bag. During setting of experiment on germination, several fungus like Fusarium, Alternaria, Colletotrichum, and Rhizopus were found Higher no. of fungus was observed in seeds of cloth bag.

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