Study the effect of some treatments on seed germination and vegetative characteristics of the seedlings of poinciana tree Delonix regia

Abstract

The seed is an essential element in plant production as it has a very significant impact on the success and failure of natural regeneration of plants. This research was carried out in the laboratory of the Department of Horticulture, Faculty of Agriculture - Omar Al-Mukhtar University in Al-Bayda during the study season (2022-2023). This study aimed to investigate the effect of applying some treatments on the germination of Delonix regia poinciana seeds belonging to the Fabaceae family. Under the conditions of this experiment, five treatments were used, namely (soaking in boiling water for 10 minutes / soaking in 50% sulfuric acid H₂So₄ for 10 minutes / mechanical scarification treatment only / soaking in 50% sulfuric acid H₂So₄ for 10 minutes + mechanical scarification together / while the control treatment was limited to soaking in plain water) and testing its effect on the germination percentage% after (20, 40, 60 days) of planting the seeds, as well as studying its effect on some vegetative characteristics after 90 days of planting.