Quality Changes during Storage of Hot-chili Seeds Primed with Different Drying Speeds

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Published: Dec 28, 2023
DOI: https://doi.org/10.55003/kmaj.2023.12.28.005
Keywords:
electrolyte leakage germination hydrogen peroxide temperature

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Thammasak Thongket
Center for Agricultural Biotechnology, Kasetsart University, Nakhon Pathom, 73140
Wiriya Kittiwatchana
Center for Agricultural Biotechnology, Kasetsart University, Nakhon Pathom, 73140
Sermsiri Chanprame
Center for Agricultural Biotechnology, Kasetsart University, Nakhon Pathom, 73140
Wachiraya Imsabai
Center for Agricultural Biotechnology, Kasetsart University, Nakhon Pathom, 73140

Abstract

        Changes of quality during storage of primed hot-chili seeds with different drying speeds were studied. Hot-chili seeds (Capsicum annuum L. cv. Mae-ping) with initial germination of 98% were halo-primed in 2% KNO3 solution for 3 days.  After soaking, seeds were subjected to two drying rates: fast drying (FD) by incubating in 35% RH for 3 days and slow drying (SD) by incubating in 75% RH 2 days, then 50% RH for 2 days and 35% RH for 3 days. Non-primed seed (control) and primed seeds were stored at 5°C for 12 months and at 40 °C for 6 months. The results revealed that before storage, germination percentage of primed hot-chili seeds were not significantly different from that of control seed. However, primed seed with SD had faster germination speed than primed seed with FD and control. During storage at both temperatures, the controlled seed had significantly highest germination percentage throughout the storage period. The germination percentage and catalase enzyme activity of SD primed hot chili seed were significantly lower and their electrolyte leakage and H2O2 content were significantly higher than that of FD primed seed and control. These significant differences occurred more rapidly in high temperature storing than that of low temperature condition.

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How to Cite
Thongket, T. ., Kittiwatchana, W., Chanprame, S., & Imsabai, W. (2023). Quality Changes during Storage of Hot-chili Seeds Primed with Different Drying Speeds. King Mongkut’s Agricultural Journal, 41(3), 223–231. https://doi.org/10.55003/kmaj.2023.12.28.005
Issue
Vol. 41 No. 3 (2023): September - December
Section
Research Articles
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

King Mongkut's Agricultural Journal

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