Comparative Evaluation of Salicylic Acid (SA) and 2,4-Dichloro-6-{(E)-[(3methoxyphenyl)imino]methyl} Phenol (DPMP) on Growth and Salt Stress Tolerance in Forage Pea (Pisum sativum L. arvense)

Authors : Nazlı ÖZKURT, Yasemin BEKTAŞ

Pages : 329-335

Doi:10.47115/bsagriculture.1110338

View : 19 | Download : 8

Publication Date : 2022-07-01

Article Type : Research Paper

Abstract :Alleviation of salt stress is becoming one of the urgent needs of agricultural production. Even though enhancement of tolerance levels with genetic variation is a common approach, exogenous applications of various compounds are a newly emerging field. Here, the effects of two different plant elicitors, salicylic acid insert ignore into journalissuearticles values(SA); and 2,4-dichloro-6-{insert ignore into journalissuearticles values(E);-[insert ignore into journalissuearticles values(3methoxyphenyl);imino]methyl} phenol insert ignore into journalissuearticles values(DPMP); on growth and stress tolerance levels of forage pea insert ignore into journalissuearticles values(Pisum sativum ssp. arvense L.); were evaluated. Plants were exposed to salt stress insert ignore into journalissuearticles values(100 mM); in addition to DPMP, SA, or DMSO insert ignore into journalissuearticles values(Solvent); foliar spraying. The results revealed contrasting effects for each elicitor. Under non-stressed conditions, DPMP applied plants had higher values in plant height, shoot dry weight insert ignore into journalissuearticles values(SDW);, and taproot length, while SA applied plants had significantly higher shoot fresh weight insert ignore into journalissuearticles values(SFW);, and DMSO applied plants had higher values in root fresh insert ignore into journalissuearticles values(RFW); and dry insert ignore into journalissuearticles values(RDW); weights, and root/shoot ratios. When we evaluated stress tolerance index insert ignore into journalissuearticles values(STI); levels, DPMP applied plants had higher STI values in SFW, SDW, RFW, and RDW. DPMP improved STI and biomass allocation better than SA and DMSO. These elicitors may have significant potential in abiotic stress tolerance, in addition to their well-known biotic stress eliciting roles. There is a need for further research to define appropriate doses and application times.
Keywords : Elicitor, Forage pea, Root development, Salicylic acid, Salt stress