الفهرس 
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Abstract
Although CPPU (forchlorfenuron) is one of the widely used plant growth regulators (PGRs) to promote tree yield and quality, this is the first report using CPPU to improve late fruit yield and fruit quality traits of fig trees. The current study was planned to investigate the potential promoting influences of foliar application of CPPU on growth, physio-biochemical attributes, nutritional and hormone homeostasis, primary metabolism-related gene expressions, and their contribution to improving late fruit yield and fruit quality of fig trees under the adverse conditions of late season (leaf senescence and low temperature). Through a preliminary study (2019 and 2020), CPPU was able to markedly improve growth traits (average leaves number branch‒1, leaf area, leaf dry weight, and leaf dry matter content), yield (average fruit number branch‒1 and fruit weight), and fruit quality (average fruit volume, total soluble solids, titratable acidity, and total soluble sugar content) compared to K and proline, and was therefore chosen as the best treatment to use in the main study (2021 and 2022). In the main study, fig trees treated with 40.0 µM CPPU, especially when sprayed thrice, exhibited the best growth, late fruit yield, and fruit quality traits. This positive finding was due to improvements by CPPU in photosynthetic efficiency, primary metabolism-related gene expressions, including RubisCO, leaf integrity (relative water content and membrane stability index), soluble sugars, various antioxidants, and homeostasis of nutrients and phytohormones. The findings of this report recommend the use of CPPU for promoting late fruit yield and fruit quality traits of fig trees.