IMPACT OF IRRIGATION INTERVALS AND SPRAYING WITH ASCORBIC ACID AND SALICYLIC ACID ON MORPHO-PHYSIOLOGICAL, QUALITY AND YIELD TRAITS OF MAIZE (Zea mays L.) | ||
| Zagazig Journal of Agricultural Research | ||
| Volume 52, Issue 4, July and August 2025, Pages 751-764 PDF (950.91 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/zjar.2025.451785 | ||
| Authors | ||
| Kamal Eldeen A. Elfky1; Nevein L. Eryan* 1; Basma E.M. Elsmahy2; Mona A. M. El Mansoury3 | ||
| 1Crop Physio. Res. Dep., Field Crop Res. Inst., ARC, Giza, Egypt | ||
| 2Seed Tech. Res. Dep. Field Crops Res. Inst. AR C., Giza, Egypt | ||
| 3Water Requirements and Field Irrigation Res. Dep. Soils, Water and Environment Res. Inst. ARC, Giza, Egypt | ||
| Abstract | ||
| : Irrigation intervals play vital role in rationalizing irrigation water in arid and semi-arid areas. Afield experiment was conducted at Sakha Agricultural Research Station, Kafr El-Sheikh, Egypt during the 2022 and 2023 seasons to study the effects of irrigation scheduling; irrigated every 15, 20 and 25 days (three irrigation treatments) with (water spray as control (F1), spraying with 100 ppm salicylic acids (F2), spraying with 50 ppm ascorbic acids (F3) and spraying with 50ppm salicylic acid +50 ppm ascorbic acids (F4) on morpho-physiological and, yield traits and water relations of maize. The obtained results showed that water consumption and applied water every 20 and 25 days decreased by (7.0% and 17.3% and (6.2% and 16.6%), respectively, compared to 15 days as the average of the two seasons. The best growth, physiological, yield and yield components and grain equality values were achieved when maize plants were irrigated at 15 days, while the highest water productivity values were achieved when plants were irrigated after 20 days and 15 days' treatments. Plant height, leaf area, total chlorophyll, proline concentration, leaf transpiration, stomatal resistance, shelling percentage, 100-grain weight, biological and grain yields, water consumption and water productivity, carbohydrates, protein and oil percentages values for foliar spray treatments were taken in the descending order F4>F3>F2>F1 under the study conditions. Maximum grain yield was achieved when maize irrigated at 15 or 20 days with the F4 treatment (spraying with salicylic acid 50 part per million +ascorbic acid spraying at concentration of 50 part per million F4), therefore it could be recommended to irrigation maize plants every 20 days with F4 treatment for saving irrigation water and improving water productivity | ||
| Keywords | ||
| : Irrigation; Zea mays; Salicylic acid; Ascorbic acid; Antioxidants | ||
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