The aim of this research is to study the effects of foliar application of some growth stimulants, such as benzyladenine (BA), yeast extract (YE) and a mixed amino acids (MAA) on growth, Endogenous phytohormones, chemical content of leaves, yield characteristics, and chemical content of seeds, as well as seed yield, and oil yield of sesame plant (Sesamum indicum L. var. Sandawel 3) plants.
The received results were explained that the foliar application of growth stimulants as BA (25 and 50 mg L^-1), YE (50 and 100 ml L^-1) and MAA (4 and 6 ml L^-1) significant increased in all growth parameters (i.e., stem length (cm), leaf area(cm²)/plant, fresh & dry weights (g) of stems and leaves, No. of flowers/plant, No. of capsules/plant, fruiting zone length (cm)/plant and seed yield (g)/pot).
Additionally chemical composition represented in photosynthetic pigments, minerals, crude protein contents, total sugars and carbohydrate and total free amino acids in sesame leaves and seeds were also increased by all studies treatments compared with the control, the highest value were MAA at 4 ml L^-1 followed by YE at 100 ml L^-1 in the two seasons. This increased improved seeds yield and it's components along with oil percentage and seed oil yield /plant.