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Waterworth, W.M., Bray, C.M. and West, C.E. (2015) The Importance of Safeguarding Genome Integrity in Germination and Seed Longevity. Journal of Experimental Botany, 66, 3549-3558.

has been cited by the following article:

  • TITLE: Seed Priming and Tolerance to Salt and Water Stress in Divergent Grain Sorghum Genotypes

    AUTHORS: Charles Lobo Pinheiro, Hellen Thayse Nascimento Araújo, Selma Freire de Brito, Marcos da Silva Maia, Jesimiel da Silva Viana, Sebastião Medeiros Filho

    KEYWORDS: Hydropriming, Hormonal Priming, Gibberellic Acid, Sorghum bicolor

    JOURNAL NAME: American Journal of Plant Sciences, Vol.9 No.4, March 9, 2018

    ABSTRACT: Tolerance to water and salt stress during germination and growth of agricultural species might have superior results when seeds are submitted to priming processes. The objective of the present study was to evaluate the use of hydropriming and hormonal priming with gibberellic acid (GA3) on the tolerance of divergent genotypes of sorghum to salt and water stress during germination and seedling growth. The genotypes analyzed were cultivar BRS 330 and lineage 201420, which are the most and least tolerant to water and salt stress, respectively. Sowing was undertaken under control (no stress), water stress (-0.6 MPa), and salt stress (20 dS·m-1) conditions, and the seeds were subjected to the following treatments: control-no immersion; hydropriming-immersion for 2 hours in distilled water; and hormonal priming-immersion in GA3 solutions, at concentrations of 50, 75, and 100 ppm, for 2 hours. After soaking, the seeds were dried for 24 hours at a temperature of 30°C ± 2°C. The variables analyzed were percentage and germination speed index, root and shoot lengths, and root/shoot ratio. The stress conditions analyzed negatively affected the two genotypes; however, the seeds that underwent priming processes improved the performance of the genotypes under salt and water stress conditions, especially when using seeds of the more tolerant genotype (BRS 330) subjected to hormonal priming at 100 ppm GA3 concentration.