Deciduous Tree Fruit

Fertigation of Deciduous Fruit Trees: Apple and Sweet Cherry

Nutrient uptake by trees is determined by root interception, soil availability, and tree demand. Fruit trees have low rooting density, especially in the case of dwarfing rootstocks. Mobility in the soil is a key factor in determining nutrient availability, and good management of nutrients requires that supply is matched to demand, in terms of amount, timing and retention in the root-zone, and t...

Nitrogen Addition Enhances Drought Sensitivity of Young Deciduous Tree Species

Understanding how trees respond to global change drivers is central to predict changes in forest structure and functions. Although there is evidence on the mode of nitrogen (N) and drought (D) effects on tree growth, our understanding of the interplay of these factors is still limited. Simultaneously, as mixtures are expected to be less sensitive to global change as compared to monocultures, we...

Response of five temperate deciduous tree species to water stress.

Gas exchange, tissue water relations, and leaf/root dry weight ratios were compared among young, container-grown plants of five temperate-zone, deciduous tree species (Acer negundo L., Betula papyrifera Marsh, Malus baccata Borkh, Robinia pseudoacacia L., and Ulmus parvifolia Jacq.) under well-watered and water-stressed conditions. There was a small decrease (mean reduction of 0.22 MPa across s...

Fruit Tree Models: Scope and Limitations

Models are used extensively in research, in the social sciences [e.g. economics] as well as in the physical, chemical and biological sciences. As a preliminary definition one could think of a model as an attempt to describe a certain process or system through the use of a simplified representation, preferably a quantitative mathematical expression, that focuses on a relatively few key variables...

Selected Highlights from Tree Fruit IPM