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Seed Quality of Stored Soybean (glycine Max L.) as Influenced by Storage Containers and Storage Periods

N. Akter
Dept. of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh;

M. M. Haque
Dept. of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh;

M. R. Islam
Dept. of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh;

K. M. Alam
Bangladesh Agricultural Research Institute (BARI), Gazipur-1701

Abstract/ Executive Summary:

An experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during April 2013 to June 2013 to study the effect of three storage containers (tin container, polythene bag and cloth bag); and five storage periods (0, 15, 30, 45, and 60 days) on the seed quality of soybean. The experiment was laid out in Completely Randomized Design (CRD) with four replications. The soybean seeds stored in tin container showed maximum germination capacity with high germination index, highest seedling growth, seedling dry weight per plant and vigour index. The seeds stored in cloth bag had the lowest seed quality during the testing period. The highest 1000-seed weight, moisture content, electrical conductivity, abnormal seedlings and number of dead seeds were recorded in cloth bag; where the equivalent lowest values were recorded in tin container. The moisture content, 1000-seed weight, electrical conductivity, number of abnormal seedlings and dead seeds were increased with the longer period of storage. In addition, germination index, seedling growth, dry weight per plant of soybean seedling, and vigor index decreased with the increase in storage period. Among the three containers, tin container was the best and the cloth bag was the worst storage container for soybean seed storage for long period.

Keywords: Soybean, Seed quality, Storage container, Storage period

Location: Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur

Start Date: 00-04-2013

End Date: 00-06-2013

Program Area: Seed Technology

Commodity: Soybean

Objectives:

To determine the effect of different storage containers and storage periods on the seed quality of stored soybean.

Methodology:

The experiment was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during April 2013 to June 2013. BARI Soybean- 5 was used in the experiment. The experiment was laid out in the Completely Randomized Design (CRD) with four replications. Three storage containers: 1) tin container, 2) polythene bag and 3) cloth bag); and five storage periods (0, 15, 30, 45, and 60 days) were used in this experiment. Seeds were stored at room temperature (24 to 30⁰C) and relative humidity (70 to 82%) up to 60 days. Seed samples were taken randomly from each storage container and were tested at the end of each storage period as described above. Quality of soybean seeds was assessed by moisture content, viability, vigour index, electrical conductivity and observation of biotic factors as per the following procedures. Moisture content test, Viability test, Germination index (GI), Seed vigour index, Seedling vigour index, Electrical conductivity test was determined following as standard method. For the observation of biotic factors that influence seed quality, 50 g of seeds was taken and the number and kind of insect or pathogens present were observed. Analysis of variance was conducted using MSTAT-C software and significance of differences among means was compared employing least significant difference (LSD) test at a 0.05 probability level.

Source of Information: The Agriculturists 12(1): 85-95 (2014) ISSN 2304-7321 (Online), ISSN 1729-5211 (Print), A Scientific Journal of Krishi Foundation

Article Link (Online Journal): http://banglajol.info/index.php/AGRIC/article/view/19585/13545

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The soybean grains generally deteriorated with storage and deterioration was particularly strong for grains stored in cloth bag. High temperature, high relative humidity, and moisture in the storage environment are the principal factors involved in deterioration of soybean seed quality during storage. Loss of germination capacity was the final manifestation of seed deterioration. When seed moisture content was increasing the rate of germination percentage was decreased. The deterioration rate was also the highest in seeds of cloth bag. The electrical conductivity, abnormal seedling and dead seed were increased with increasing storage time, but the increasing rate was higher in seeds of cloth bag. The shoot and root length of seedling and seedling vigour was the lowest in cloth bag at the end of storage period. Dry weight per plant of soybean decreased in all cases but the rate of deterioration was also the highest in cloth bag. Storage containers and periods on soybean seed quality 93 It may be concluded that the conventional practices of soybean seed storage in cloth bags are not suitable because there is a possibility of moisture gain and pests attack, which play important role in deterioration of soybean seed quality and viability during storage. Air tight tin container will be the best means for soybean seed storage for long time.

Knowledge Management: Journal