The effect of foliar application of brassinosteroid (BR) and sodium nitroprusside (SNP) on pigment content of Borago (Borago officinalis L.) under salinity stress conditions

Subject Areas : Crop Production Research

S.M Mahdaei ¹ , رضا Monem ² , A.R Pazoki ^{3 *}

1 - M.Sc
2 - Ecophysiology
3 - Ecophysiology

Received: 2022-05-18 Accepted : 2022-08-04 Published : 2022-09-01

Keywords: salinity stress, pigment, Sodium nitroprusside, Borago, Brosinosteroids,

Abstract :

In order to investigate the effect of Effect of brassinosteroids and sodium nitroprusside (SNP) foliar application on physiological, biochemical and morphological traits of Borago (Borago officinalis L.) under salt stress conditions, based on a greenhouse experiment was conducted in Shahriar region in 2016-2017. The experiment was conducted as factorial based on completely randomized design with four replications. In which salinity stress from the source of Nacl at three levels (0, 40 and 80 mM), Nitroprosium sodium sulfate was applied at three levels (0, 75 and 150 μM) and brassinosteroids at two levels (0 and 1.5 μm) Were considered. The simple effect of brassinosteroid and sodium nitroprusside on all experimented traits and the interaction effect of experimental factors on carotenoid and xanthophyll content were significant. In these conditions, after increase in salinity stress, the pigment content decreased and these traits improved with anti-stress compounds consumption. So the highest amount of carotenoid and xanthophyll with 1.6667 mg/g and 0.3344 mg/g were obtained with 150 μM sodium nitroprusside and 1.5 μM brassinosteroids consumption.