Response of Gazania (Gazania splendens L.) Plants to Foliar Application with Bio Health and Salicylic Acid on some Growth and Flowering Traits

Abstract

The research was done in the lath house as the growing season 2020-2021 on Gazania plants, To investigate the impact of ground addition of Biostimulator (Bio health) at concentrations (0, 2 and 4 g L-1), respectively, and spraying with growth regulator (Salicylic acid) at concentrations (0, 5 and 10 ml L-1), respectively. The findings indicated that the addition of Bio health, especially at concentration (4 g L-1) contributed to achieving the best results for all vegetative and flowering growth traits (plant height, leaves number, vegetative dry weight, off springs number, leaf content of chlorophyll, total carbohydrates content of leaves, flowers number, flower fresh weight, flower diameter, flower peduncle length), they were (11.91 cm, 36.82 leaf plant-1, 8.12 g, 7.60 off spring plant-1, 11.12 mg g-1, 7.44%, 6.65 flower plant-1, 2.33 g, 7.58 cm and 8.33 cm), respectively. Spraying with Salicylic acid achieved significant effect, especially (1 ml L-1) concentration, that gave the highest values for the traits (plant height, leaves number, vegetative dry weight, off springs number, leaf content of chlorophyll, total carbohydrates content of leaves, flowers number and flower diameter), they were (11.61 cm, 35.05 leaf plant-1, 8.26 g, 7.35 off spring plant-1, 11.39 mg g-1, 7.49%, 6.51flower plant-1and 7.72 cm), respectively.