Effect of Foliar Application of Salicylic Acid and Micronutrients on Some Biochemical and Agronomic Characteristics of Rapeseed (Brassica napus L.’ Neptune Cultivar) under Water Deficit Stress

Subject Areas : Journal of Crop Ecophysiology

Younes Mir ¹ , Mashalah Daneshvar ² , Ahmad Ismaili ³ , Hamed Khosravi ⁴

1 - Ph.D. Student, Faculty of Agriculture, Lorestan University, Khorramabad, Iran
2 - Assistant Professor, Faculty of Agriculture Lorestan University, Khorramabad, Iran
3 - Associate Professor, Faculty of Agriculture, Lorestan University, Khorramabad, Iran
4 - دانشجوی دکتری دانشکده کشاورزی دانشگاه لرستان.خرم آباد. ایران

Received: 2020-02-23 Accepted : 2021-02-07 Published : 2021-10-23

Keywords: Proline, Catalase, oil percentage, peroxidase,

Abstract :

To investigate the effect of soluble salicylic acid and micronutrient elements on some of the biochemical and agronomic characteristics of rapeseed under water deficit conditions studied in a split factorial experiment based on a randomized complete block design with three replications at the Faculty of Agriculture, Lorestan University during 2016-2017 growing season. Water deficit was considered as the main factor with two levels (irrigation at 20 (control) and 70% of field capacity depletion), and combined treatments of two factors of foliar application of micronutrient elements (non-consumption and spraying at a concentration of 2 per thousand) and salicylic acid concentration of 0, 0.5, 1 and 1.5 mM) as the subplot. The results showed that the effects of water deficit and salicylic acid on all traits under study were significant. The results showed that triple interaction was also significant on catalase, peroxidase. proline, oil percent, seed yield and oil yield. The highest average oil percentage, seed and oil yield were 46.02%, 4424 and 2036 kg.ha-1 of the treatment combination (no stress+ solubility of 1.5 mm salicylic acid and concentration of 2 per thousand micronutrient fertilizer). The results of this study, based on the changes in the mean, showed that salicylic acid and micronutrient elements reduced the effect of water deficit in canola seedlings. In general, Based on the results of this study, it is recommended to reduce the negative effects of water deficit stress and produce proper seed yield, by using Ferti Mix Trio fertilizer and 1.5mM salicylic acid under water deficit conditions.

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