Seed Priming with Proline as Promising Tool to Mitigate Water Stress on Squash Cultivars | ||||
| Alexandria Science Exchange Journal | ||||
| Article 5, Volume 44, Issue 1, March 2023, Page 49-56 PDF (306.29 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asejaiqjsae.2023.287107 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Rasha Badr Eldin  1; Shimaa M. Hassan* 2
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| 1soil and water department, Faculty of Agriculture, Alexandria University, Egypt | ||||
| 2Department of Vegetable crops, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt; | ||||
| Abstract | ||||
| Proline is considered endogenous regulator that alleviates environmental stresses as water stress. This study investigated the effect of seed priming with proline on summer squash plant to mitigate water stress. Four squash cultivars were used SQ250, Behera, Sp 11/4 and Kaha5/7. The seed priming were hydro-priming (as a control) and priming seeds that primed with 20 mmol proline for 24 hours. The study was conducted in greenhouse where the squash plants were subjected to three irrigation levels (100% FC (Field capacity), 75% FC and 60% FC) in three replicates. The results revealed that water stress significantly decreased all measured physiological parameters (plant height, number of leaves, dry weights, fresh weights, fruit weights and relative chlophyll content index), while proline contents in plants increased with water stress Meanwhile seed priming with proline significantly ameliorate squash tolerance to water stress through improve these parameters. Sp11/4 and Kaha5/7 gave the highest fruit weights so they are the recommended squash cultivars that can be used under water stressed condition after seed priming with proline. | ||||
| Keywords | ||||
| Squash; water stress; proline; seed priming | ||||
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