The effects of plant hormones on improvement of natural and artificial aging wheat seed under salt stress

Document Type : Original Article

Authors

1 Graduated of college of agriculture and natural resourccs , university of tehran

2 Ferdowsi Univ. Mashhad

3 professor

Abstract

Dehydration or Aging is one of the vigor reducing and seed germination limiting agents. Inappropriate storage places, especially the gene banks, can speed up the aging process in a variety of seeds. In this study, to improve the adverse effects of seed aging, hormone treatments with GA, Cytokinin, Auxin and Salicylic acid in concentrations of 50, 100 and 150 ppm (and distilled water as a control) on the quality of the naturally and synthetic deteriorated seeds of wheat were studied in the seed laboratory of Agriculture and natural resources college, Tehran University in 2015. After hormonal treatment, germination under salt stress in three levels, 0, -4 and -8 bar were investigated. The results showed that the naturally aged seeds had a higher mean value for all the traits. Treatment with cytokinin hormone showed higher percentage and germination rate and WGI between others hormones and all the hormonal treatments were better than control treatment (distilled water) in all traits and increased salinity stress tolerance. Salinity stress could affect all traits except the Mean Germinations Time.

Keywords

References

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Iranian Journal of Seed Science and Technology
Volume 8, Issue 2 - Serial Number 16
December 2019
Pages 87-100

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