دراسة تأثير التفاعل بين الإجهاد الجفافي وحمض الساليسيليك على بعض الخصائص المورفولوجية والفيزيولوجية في الفول السوداني Arachis Hypogaea L.))

Abstract

This research was conducted at the Seed Multiplication Center in AL-Sanawbar area (Syria\Latakia) during the 2022 growing season.the decline in rainfall and its poor distribution led to crops being affected by water scarcity, especially when it coincided with critical periods of water shortage. the research aimed to study  the effect of the interaction between drought stress and salicylic acid on some morphological and physiological characteristics of peanuts. two peanut varieties (Suri 2,Baladi) were used with three salicylic acid concentrations (0,1,and3) and four irrigation levels(90%,70%,50%,50% up to60 days after planting) . the experiment was designed as a completely  randomized design in a greenhouse with three successive replications. the results showed that the Baladi variety significantly outperformed the suri2 variety in the following traits: plant height and leaf area index . no significant differences were found between the two varieties in the following traits: root length ,number of main branches, root size. The combined effect of the three factors  significantly impacted all stadied traits.the result concluded that treating the seeds with salicylic acid at concentration of 3 g/l before planting improved plant performance ,and consequently,its morphological and physiological characteristics. The 90% watering level significantly outperformed the other watering levels in all studied traits.