Intra-specific competition of loblolly pine (Pinus taeda) is a key factor for individual tree development. Liu and Burkhart (1994) indicated that at the seedling stage environmental gradients dominate on tree growth, where intraspecific competition dominate later stages of the stand. However, little information has been provided on how genetic material and intensive silviculture interactions af...

The effects of global climate change will regionally be very different, mainly causing considerable changes in temperature and water availability. For Central Europe, for example, increased temperatures are predicted, which will cause increased frequencies and durations of summer drought events. On the other hand, the predicted changes in precipitation patterns will lead to enhanced rainfall du...

4th International Workshop on Functional-Structural Plant Models, 7-11 june 2004 –Montpellier, France Edited by C. Godin et al., pp. 29 Predicting coarse root biomass from branching patterns of native tree species in a tropical mountain forest in South Ecuador N. Soethe, J. Lehmann, C. Engels Department of Plant Nutrition, Humboldt University; Germany Department of Crop and Soil Sciences, Corne...

In the present study, chemical composition and in situ rumen dry matter degradability (DMD) of some tree species (cherry, apricot and almond tree leaves) were determined. Crude protein (CP) concentration varied from 6.76% for almond tree to 2.76% for cherry tree, neutral detergent fiber (NDF) and acid detergent fiber (ADF), from 29.2, 20.8% for apricot tree to 20.8 and 15.8% for almond tree lea...

BACKGROUND Huanglongbing (HLB) or citrus greening is a bacterial disease vectored by the Asian citrus psyllid (ACP) causing tree decline, and yield loss. Vector control and foliar nutrition are used in Florida to slow the spread of HLB and mitigate debilitating effects of the disease. A four year replicated field study was initiated February 2008 in a 5.2-ha commercial block of young 'Valencia'...

Forests in central Europe were affected by heavy bark beetle outbreak during the years 2014–2022. Decline of Norway spruce brought other species forest trees, including fir, to fore. The nutritional level silver fir is one studied topics. Needles 14 (NS) – (SF) mixed stands from 4 regions Czech Republic have been sampled survey their nutrition level. Nutrition NS often near or below defic...