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Reading: Interaction effect of heat shock and seed priming on storability of Agropyron elongatum

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Interaction effect of heat shock and seed priming on storability of Agropyron elongatum

Authors:

M Akbarpour Bahreh ,

University of Tehran, IR
About M Akbarpour
Department of Agronomy & Plant Breeding, Faculty of Agricultural Science & Engineering, College of Agriculture & Natural Resources
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F Sharif Zadeh

University of Tehran, IR
About F Sharif
Department of Agronomy & Plant Breeding, Faculty of Agricultural Science & Engineering, College of Agriculture & Natural Resources
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Abstract

Priming improves germination rate and seed vigor but reduces longevity of seeds. We examined the possibilities of obatining primed seeds with maintaining high germination quality but with longevity much the same that seeds are not treated. In this study were used different priming treatments for Agropyron elongatum. Then primed seeds were placed at different levels of heat shock. And then all treatments and unprimed seeds were evaluated in standard germination and accelerated ageing test. We found that the desired longevity could be obtained by keeping the seeds under heat shock for four hours at 40°C, after a priming treatment. Decreasing germination and seedling vigour in hydro and hormonal priming did not happaen again due to such a treatment. In addition, following priming, heat shock affects the initial quality of primed seeds in some treatments. Optimal temperature was strongly duration dependent. The method was applied to obtain primed seeds without loss of storability is very similar to those used to induce desiccation tolerance in germinated seeds and acquired thermotolerance in plant vegetative tissues.

DOI: http://dx.doi.org/10.4038/jas.v10i1.8045

The Journal of Agricultural Sciences, 2015, vol.10, no1: p.29-40

DOI: http://doi.org/10.4038/jas.v10i1.8045
How to Cite: Bahreh, M.A. & Zadeh, F.S., (2015). Interaction effect of heat shock and seed priming on storability of Agropyron elongatum. Journal of Agricultural Sciences. 10(1), pp.29–40. DOI: http://doi.org/10.4038/jas.v10i1.8045
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Published on 04 Feb 2015.
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