Effect of PGRs and chemicals on seed germination and physiological parameters of rough lemon (Citrus jambhiri L.) under hydroponic condition

Abstract

This study aimed to investigate the possibility of enhanced germination attributes upon rough lemon’s seeds treated with plant growth regulators and chemicals. The experiment was laid out in Completely Randomized Design (CRD) with thirteen treatments replicated thrice. Before the sowing, the seeds were soaked with different concentrations of GA3, NAA, KNO3 and thiourea for 12 hours, while the distilled water were taken as control. The study revealed that the earliest germination (10.33 days), highest percentage of germination (88.83%), Survival percentage (90.47%) and total chlorophyll content in leaves (3.50 mg/g) were recorded with soaking seeds in GA3 at 150 ppm concentration which were superior to other treatments. However, all treatments have not shown significant effect on accumulation of proline in the seedling leaves.