Cultural Factors Influencing Net Photosynthesis of Apple Trees1

Abstract

The impact of environmental factors on the photosynthetic potential of tree fruits is largely uncontrollable, but one can affect photo synthetic efficiency through the manipulation of various cultural practices. Application of pesticides and other chemicals; tree size and shape; mineral nutrition; and pest damage are all important factors and should be carefully considered in maximizing net photosynthesis (Pn) and ultimate tree performance.

Simulated Pest Injury Effects Photosynthesis and Transpiration of Apple Leaves

“…These charac teristics would not only be important at prop agation or initial potting time, but also would enable a medium to recover quickly from a period of desiccation, possibly reducing water stress on the plants. vironmental factors (3,4,7,14,16,18). Artificially inducing leaf injury can be used to study the effect of these factors on Pn and Tr of apple leaves (6,11).…”