Response of Olive Trees Irrigated with Sewage Water to Foliar Spray with Salicylic Acid, Chitosan and Algae Extract | ||
| Annals of Agricultural Science, Moshtohor | ||
| Volume 62, Issue 4, December 2024, Pages 13-20 PDF (991.41 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/assjm.2025.317626.1314 | ||
| Authors | ||
| Ahmed Abulmaatyy Algohary* 1; Reda M Zewail2 | ||
| 1Botany department, Faculty of Agriculture, Benha University, 13736, Egypt. | ||
| 2Botany Dept., Faculty of Agriculture, Benha Univ., 13736 Benha, Egypt. | ||
| Abstract | ||
| This work amid to investigate the beneficial effects of the biostimulating treatments under treated Sewage water. Foliar spraying of salicylic acid at 0.5 and 1 g-1, chitosan 2 and 4 ml-1 and alage extract at 2 and 4 ml-1 start at June and repeated 8 times on growth, flowering and fruit quality of olive trees grown under treated sewage water applications. Results indicated that chitosan at 4 ml-1 significantly increased growth parameters fresh weight of leaves/branch g, dry weight of leaves/branch and total leaf area/branch cm2. Flowering characteristics i.e., date of full bloom, flowering density, total number of flower/inflorescence. In addition, fruit yield/tree, fruit yield /faddan (ton), fruit weight g, fruit width (cm), fruit length, seed weight, flesh weight, percentage flesh/fruit weight. Also, fruit chemical quality i.e., fruit moisture %, fruit oil content and refractive index, were increased with chitosan at 4 ml-1 during both seasons. Meanwhile, peroxide value and acid value % were decreased with the same application during both seasons. Using chitosan is best superior for increasing olive growth and yield under treated sewage irrigation water. | ||
| Keywords | ||
| Olive; biostimulating fruit yield; oil content | ||
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