Assessment of Some Selected Cultivars of Almond on GF677 Rootstock in Drought Stress Conditions

Drought stress is the most important factor limiting successful production of agricultural crops worldwide. The response some almond cultivars grafted on GF677 rootstock was studied to drought at a research greenhouse in Horticultural Science Research Institute Karaj, Iran, 2016-2017 growing season. plant materials included 12 (Prunus dulcis Mill.) genotypes/cultivars, including ‘Sh10’, ‘Saba’, ‘A1-16’, ‘Shokofeh’, ‘Kh1’, ‘A230’, ‘Mamaie’, ‘A13-40’, ‘A9-7’, ‘A8-24’, ‘Fragiolu’, and ‘Sh17’, which were onto Gf677 rootstock. results showed that treated almonds differed significantly. When all traits are considered, it can be concluded genotypes ‘Kh1’ ‘A13-40’ outperformed other terms morphological physiological exhibited far more tolerance stress. In normal conditions, Kh1 Mamaei had maximum proline (2.35 µmole/g), but A8-24 still lowest content (1.20 µmole/g). highest K under obtained A1-16 (2.8 %) (2.71 cultivars.