Volume 22, Issue 1 (2020)                   JAST 2020, 22(1): 221-233 | Back to browse issues page

‎ 20.1001.1.16807073.2020.22.1.20.6

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Kalia A, Sharma S P, Devi S. Effect of Surface Microbiome and Osmo-Conditioning on Restoration of Storage-Induced Losses of Seed Viability in Muskmelon (Cucumis melo L.). JAST 2020; 22 (1) :221-233
URL: http://jast.modares.ac.ir/article-23-26371-en.html
Effect of Surface Microbiome and Osmo-Conditioning on Restoration of Storage-Induced Losses of Seed Viability in Muskmelon (Cucumis melo L.)
A. Kalia * 1, S. P. Sharma2 , S. Devi3
1- Electron Microscopy and Nanoscience Laboratory, Department of Soil Science, Ludhiana, Punjab, India-141004. , kaliaanu@pau.edu
2- Department of Vegetable Science, Ludhiana, Punjab, India-141004.
3- ICAR-Central Potato Research Station, Jalandhar, Punjab, India-144003.
Abstract:   (2877 Views)
Seed priming can restore age-induced loss of seed viability or longevity; however, these invigoration responses may vary with priming agents and seed aging duration. The present study investigated the effect of two potassium salts (K-salts) individually and in combination (1:1) on different lots of muskmelon genotype, MS-1 seeds stored for four consecutive years, from 2013 to 2016 under ambient conditions. The combination of K-salts significantly enhanced the percent germination of seeds stored for two years (from 2015 to 2016). Further, it also improved root morpho-traits of 10-day-old seedlings. The storage duration had significant effect on the seed surface bacterial and fungal populations. A significantly higher cfu mL-1 microbial counts were recorded for 2013 harvested seeds on three different agar-based media compared to 2014 to 2016 stored seeds. Further, the Scanning EM and FT-IR study revealed the surface microbiological status and functional groups variations, respectively. Thus, aging-related seed coat microflora is responsible for deterioration of the seed coat. Osmo-conditioning cannot restore viability of seeds stored under ambient conditions for more than two years.
 
Keywords: Electron microscopy, Melon, Osmolyte, Seed priming, Storage time, Surface microbes.
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Article Type: Original Research | Subject: Vegetable Crops
Received: 2018/10/22 | Accepted: 2019/01/29 | Published: 2020/01/30
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