In the coffee plant, the net photosynthetic rate and the photochemical efficiency are truly reduced during winter, for both C. arabica cv. ‘Red
trolling its agricultural expansion, mainly in developing Catuaí’ and C. ephora cv. ‘Kouillou’, however no correlation to growth rate has yet been established
These authors concluded that a decline in air temperature would be the factor responsible for the growth and decrease of photosynthesis in Arabica coffee, and that the depressions of photosynthesis and growth might have simply run in parallel, without any causal relationship. Changes in net CO assimilation appeared to be due to stomatal limitationsin the active growth season, with non-stomatal ones prevail-
ing in the slow growth period. Leaf carbohydrates appeared to not contribute significantly to alterations in growth rates and photosynthesis