Soil Waterlogging Conditions Affect Growth, Water Status, and Chlorophyll “a” Fluorescence in Coffee Plants (Coffea arabica L.)

Soil waterlogging is an environmental limitation that promoted by changes in rainfall patterns and negatively affects plant physiology, growth, development, coffee production, exports Colombia. The objective of this research was to evaluate responses water status, chlorophyll fluorescence parameters for plants under different conditions. evaluations were carried out on six-month-old “Cenicafé 1” variety seedlings suitable establishment the field. subjected periods: 4, 8, 12, 16 days, using a completely randomized block experiment design with 30 replicates. Total dry mass (TDM), total leaf area (TLA), number leaves (TNL) performed, growth indices calculated. potential (Ψpd Ψmd), maximum efficiency photosystem II-FV/Fm, electron transport rate (ETR) also measured. Waterlogging days caused 57% reduction TDM, which significant starting at 4 days. Statistical differences TLA detected after 12 decreases 29%. Ψpd, Ψmd, Fv/Fm, ETR sensitive waterlogging, decreased noticeably 8 results indicated physiological performance cv. significantly affected conditions eight