Effect of salicylic acid and selenium foliar application on physiological and agronomic characteristics of safflower in drought tension conditions

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YOUSEFIRAD M.; SHARIFI M.

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Journal: CROP PHYSIOLOGY Year:2019 | Volume:11 | Issue:1 (41) Page(s): 29-46

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Title

Effect of salicylic acid and selenium foliar application on physiological and agronomic characteristics of safflower in drought tension conditions

Author(s)

YOUSEFIRAD M. | SHARIFI M. | Issue Writer Certificate

Keywords

Grain yieldQ2

Oil percentageQ2

Proline and SafflowerQ1

Abstract

In order to investigate the effect of salicylic acid and selenium foliar application on physiological characteristics and yield and yield components of safflower under drought tension conditions, an experiment was conducted as split plots based on randomized complete blocks design with three replications. The main factor included irrigation in three levels, complete irrigation during growing season (control), cutting irrigation at 50 percent flowering stage and cutting irrigation at 50 percent head forming stage. Sub factor was considered foliar application of safflower plants including nonspraying (control), foliar application by salicylic acid, selenium and salicylic acid with selenium. Drought tension reduced biologic yield, yield components and Grain yield, but it increased protein percentage, the superoxide dismutase activity and proline concentration. Also, the highest negative effect of drought tension was observed in flowering stage, so that tension at flowering stage reduced 49 percent Grain yield and 33 percent biomass of safflower. Foliar application improved yield, yield components and superoxide dismutase activity compared to non-spraying( control). However, between foliar application treatments in Grain yield and superoxide dismutase activity, no significant difference was observed, but foliar application of salicylic acid with 7198 kg ha-1 showed the highest biomass. The foliar application in tension and non-tension conditions increased grain Oil percentage, so that in complete irrigation and flowering stage tension, the highest grain Oil percentage was belonged to salicylic acid foliar application with 24 percent and salicylic acid foliar application with selenium 28 percent. The foliar application treatments increased proline concentration in tension conditions compared to control and at flowering tension stage, salicylic acid and selenium foliar application with 11 micro Mol per gram fresh plant weigh showed the highest proline concentration.

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APA: Copy

YOUSEFIRAD, M., & SHARIFI, M.. (2019). Effect of salicylic acid and selenium foliar application on physiological and agronomic characteristics of safflower in drought tension conditions. CROP PHYSIOLOGY, 11(1 (41) ), 29-46. SID. https://sid.ir/paper/367656/en

Vancouver: Copy

YOUSEFIRAD M., SHARIFI M.. Effect of salicylic acid and selenium foliar application on physiological and agronomic characteristics of safflower in drought tension conditions. CROP PHYSIOLOGY[Internet]. 2019;11(1 (41) ):29-46. Available from: https://sid.ir/paper/367656/en

IEEE: Copy

M. YOUSEFIRAD, and M. SHARIFI, “Effect of salicylic acid and selenium foliar application on physiological and agronomic characteristics of safflower in drought tension conditions,” CROP PHYSIOLOGY, vol. 11, no. 1 (41) , pp. 29–46, 2019, [Online]. Available: https://sid.ir/paper/367656/en

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