The Attraction of Apple Rhizosphere Microorganisms and Changing Leaf Characteristics by Strigolactone

Apple leaf characteristics are the most important vegetative growth and development traits. The apple rhizosphere is also indirectly responsible for development. It provides roots with elements compounds that improve roots’ shoots’ application of exogenous plant regulators such as strigolactones (SLs) has become one main trends improving enhancing microbiome. This study aimed to investigate effect SLs on some characteristics, area, angle, nitrogen content, chlorophyll apical area diameter, in addition composition microbiome M9 rootstock. rootstocks were treated various concentrations GR24, an analog SLs; 0, 1, 5, 10 µM. found treatments 5 µM increased leaf–stem angles length while decreasing diameter. 1 content; however, this was not observed when using higher concentration lower (1 µM) led a different abundance diversity microorganisms compared (10 µm).