Chlorophyll concentration in leaves is an indicator of potato tuber yield in water-shortage conditions

Chlorophyll concentration was higher and senescence rate, lower, in treatments that experienced water scarcity (DI50 and PRD25), which denoted stay-green effect occurrence in potato during drought. The slope of chlorophyll content temporal variation and the chlorophyll content at loss of half maximum plant cover were negatively correlated with the final tuber yield among assessed treatments. David A. Ramírez, Wendy Yactayo, Raymundo Gutiérrez, Víctor Mares, Felipe De Mendiburu, Roberto Quiroz.