ABSTRACT

Kenaf seeds lose their ability to germinate during storage, leading to a lack of quality seeds compared to planting requirements, hindering the expansion of kenaf cultivation in Bangladesh. The effects of different storage containers on the germination, electrical conductivity, vigor index and accelerated aging of kenaf seeds of three varieties were studied during a 6-month storage period from 20th February 2020 to 20th August 2020 in a room. Four different containers viz. C1= aluminum foil, C2= plastic pot, C3= earthen pot and C4= gunny bag was used to store kenaf seeds. Three varieties, V1=HC-95, V2=HC-2 and V3=BJRI Kenaf-3 were used in this experiment. This experiment revealed that the percentage of germination, vigor index and accelerated aging of all three varieties were reduced with increasing the storage time. On the other hand, electrical conductivity percent of all varieties were increased with increasing the storage period. Among the four containers it was observed that after 180 days of storage germination percentage, vigor index percent and accelerated aging percent were maximum for aluminum foil and the lowest were found in gunny bag whereas plastic pot and earthen pot remained in the middle position. On the other hand, at 180 days after storage the highest electrical conductivity was found in gunny bag (65.22%) and the lowest was found (39.89%) in aluminum foil. Germination rate at 180 DAS was recorded maximum in HC-95 (65.2%) and minimum in BJRI Kenaf-3 (57.3%). The highest electrical conductivity at 180 DAS was found in BJRI Kenaf-3 (42.78%) and the lowest was found in HC-2 (36.46%). The highest vigor index and accelerated aging was found (39.55% and 59.89%), respectively at 180 DAS were obtained in HC-95 (15.8%) and the lowest was found (34.24% and 56.88%, respectively) in BJRI Kenaf-3 at 180 DAS.  The results reveal that the quality of kenaf seeds decrease with increase the storage time.

Key words: Kenaf, seed quality, vigor, germination

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