Скачать или смотреть How Far-Red Light Shifts Light Compensation Point in Greenhouse Tomato Production

Revisiting light compensation point: Effect of far-red light on light compensation point and its use to determine timing of leaf pruning in greenhouse tomato production | Presented by Changhyeon Kim, PhD, University of Connecticut

Light compensation point (LCP) is a key plant photosynthetic parameter, calculated from a photosynthetic light response curve with varying light intensities of photosynthetically active radiation (PAR; 400 - 700 nm). Although recent reports highlight a positive contribution of far-red light (FR; specifically in the range of 700 – 750 nm) to photosynthesis, its effect on LCP remains unclear. This presentation will discuss a study evaluating the effect of FR on LCP. Additionally, a new data-driven leaf pruning method-removing a leaf if light intensity below it is lower than LCP-will be introduced as a practical application of LCP in management practices for the horticultural industry.