Effect of lettuce seed pelleting with plant growth-promoting bacteria on seed quality and bacterial viability after storage

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Published: Sep 15, 2023
Keywords:
Seed enhancement Seed treatments Adhesive Polymer Seed quality

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Jeephet, P.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand.
Hermhuk, S.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand
Atnaseo, C.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand
Rapeebunyanon, D.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand.
Pinta, J.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand.
Baomeesri, S.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand.
Singsopa, A.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand.
Thawong, N.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand.
Kangsopa, J.
Division of Agronomy, Faculty of Agricultural Production, Maejo University, Chiang Mai 50290 Thailand.

Abstract

Storage of seeds pelleted with plant growth-promoting microbes affects their quality, shelf life and viability of bacteria in controlled conditions. After 6–12 months of storage, it was found that the seeds pelleted with 1×108 CFU/ml of Enterobacter sp. had a higher germination percentage, which was different in comparison to the seeds in all other experimental groups. From the 4th month onwards, after storing seeds in ambient conditions, their germination percentage began to decline more dramatically than the seeds stored under a controlled environment. The growth change of the seeds stored in both conditions was in the same direction. For seeds before storage (0 months) and after 12 months of storage, seeds pelleted with 1×108 CFU/ml of Enterobacter sp. in both conditions had a longer root length and the difference was statistically significant compared to seeds treated with all other methods. The viability of Enterobacter sp. pellets was higher than pellets with other isolates throughout the 4 months of storage. After 1 month of storage, the pellets of Stenotrophomonas sp. and Burkholderia sp. showed a significant reduction in bacterial viability. Therefore, using 1×108 CFU/mL of Enterobacter sp. is the recommended type and concentration level for pelleting ‘Red Oak’ lettuce seeds to enhance storage and seed utilization for the highest cultivation effectiveness.

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How to Cite
Jeephet, P., Hermhuk, S., Atnaseo, C., Rapeebunyanon, D., Pinta, J., Baomeesri, S., Singsopa, A., Thawong, N., & Kangsopa, J. (2023). Effect of lettuce seed pelleting with plant growth-promoting bacteria on seed quality and bacterial viability after storage. International Journal of Agricultural Technology, 19(5), 2079–2092. retrieved from https://li04.tci-thaijo.org/index.php/IJAT/article/view/11985
Issue
Vol. 19 No. 5 (2023): September
Section
Original Study
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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