Journal of Agricultural Sciences, Belgrade 2015 Volume 60, Issue 2, Pages: 109-117
https://doi.org/10.2298/JAS1502109M
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Optimal time of soybean seed priming and primer effect under salt stress conditions
Miladinov Zlatica J. (Institute of Field and Vegetable Crops, Novi Sad)
Balešević-Tubić Svetlana N. (Institute of Field and Vegetable Crops, Novi Sad)
Đorđević Vuk B. (Institute of Field and Vegetable Crops, Novi Sad)
Đukić Vojin H. (Institute of Field and Vegetable Crops, Novi Sad)
Ilić Aleksandar D. (Institute of Field and Vegetable Crops, Novi Sad)
Čobanović Lazar M. (Institute of Field and Vegetable Crops, Novi Sad)
The aim of this study was to examine optimal time of soybean seed priming and
effect of primers under salt stress conditions. Testing was performed at the
Institute of Field and Vegetable Crops, Novi Sad, on Galina seed variety.
Optimal priming time was determined by immersing seed into: KNO3 (1%), H2O2
(0.1%), and H2O with the duration of 6 h, 12 h, 18 h, and 24 h. After drying
until the initial moisture, the seed was placed for germination and after
eight days germination was determined. In the second part of the experiment,
the seed was immersed into: KNO3 (1%), H2O2 (0,1%), and H2O after which their
effect on germination energy and seed germination under simulated salinity
conditions was examined. Simulated salinity conditions represented substrate
for germination to which NaCl in different concentrations was added (0, 50,
100, 150, 200 mM). Results of the research showed that the six-hour priming
of seed was the best with all primers. The percentage of seed germination
linearly reduced with the increase of priming time. The research has shown
that seed priming represents a favorable technique for the reduction of a
negative effect of NaCl on germination energy and soybean seed germination,
and the best effect is accomplished with the use of KNO3.
Keywords: germination, germination energy, primers, salinity, soybean