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EFFECT OF SALICYLIC ACID IN Zea mays L. PHOTOSYNTHETIC PIGMENTS UNDER SALT STRESS | ||
| Diyala Agricultural Sciences Journal | ||
| Article 1, Volume 7, Issue 2, 2015, Pages 168-175 | ||
| Authors | ||
| Ismail Khalil Ibrahim al-Samarrai; Zakaria Hassan Hamid al-Obeidi | ||
| Abstract | ||
| To study the effect of different levels of salicylic acid in Zea mays L. photosynthetic pigments under salt stress , a factorial experiment based on a Randomized Complete Block Design with three replicates was used . Treatments consisted of three salinity levels (0.5, 5.0 and 9.5 dS m-1) and five salicylic acid concentrations ( 0,250,500,1000 and 1500) µM.L-1 SA . Chlorophyll a, chlorophyll b and Carotene concentration in leaves were measured . The results showed that salt stress caused a significant decrease in photosynthetic pigments concentrations (chlorophyll a, chlorophyll b, and carotene) . Foliar application of salicylic acid caused a significant increase in chlorophyll a, chlorophyll b and carotene concentrations , especially under salt stress. | ||
| Keywords | ||
| Salt Stress; Salicylic acid; Maize; photosynthetic pigments | ||
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