Effect of Spraying with some Growth Regulators and Microelements on Growth, Productivity and Oil Content of Sesame
Year: 2026
Type: article
Abstract: Two fields experiment were conducted at the Experimental Farm, Faculty of Agriculture, Menoufia University,Shebin El-Kom,Egypt during 2024and2025 summer seasons to examine spraying effect of four growth regulators namely control, naphthalene acetic acid(NAA), gibberellic acid(GA3) and mepiquat chloride (Pix),and five microelements, i.e. control, zinc(Zn), iron(Fe), manganese(Mn) and boron (B)on growth, yield and its components and seed oil content of sesame. Spraying with GA3 significantly increased plant height, seed yield/plant and most of its components (number "No."of capsules/plant, No.of seeds/capsule and seed weight/capsule)as well as yields/ fed (seed,straw and biological and oil). However, spraying with Pix resulted in the highest significant values of total chlorophyll,1000-seed weight (seed index) and oil% compared to the other treatments in most cases in both seasons and their combined analysis. Spraying with B significantly surpassed the other microelements in leaf chlorophyll content, seed yield/plant and its components as well as seed, straw, biological yields/fed and seed oil content. In contrast, Zn application significantly produced the tallest plants in both seasons and its combined data. There are positive and high significant phenotypic correlation between seed yield/fed and each of oil, biological and straw yields/fed as well as No.of capsules/plant, No.of seeds/capsule, seed yield/plant, plant height, oil%, seed weight/ capsule and chlorophyll content, in a descending order. The results concluded that sesame plants sprayed with the combination of GA3 (at 100 ppm) and B (at 0.25 g/l) recorded the highest significant values for No. of capsules/plant, seed yield/plant and seed yield/fed, in the combined data under study conditions.
Source: Journal of Plant Production
Authors: M. S. M. Abdelaal, Y. M. shahat
Language: English
Topic: Sesame and Sesamin Research
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W7160767456