foliar analysis of natural deciduous tree species of basswood (tilia americana l.) (ba), american beech (acer grandifolia enrh) (be), and white ash (fraxinus americana l.) (wa) was carried out in 1994 in southern quebec. the diagnosis and recommendation integrated system (dris) was developed from the traditional method to find the preliminary norm and indices of n, p, k, ca, and mg for the ...

Depression affects more than 300 million people worldwide, represents one of the leading causes of disability worldwide. Treatment is based on the use of tricyclic antidepressant, selective serotonin reuptake inhibitors, between others; that although are clinically effective has a delayed onset activity and produce important side effects. Medicinal plants are presented as a source of study in t...

Depression affects more than 300 million people worldwide, represents one of the leading causes of disability worldwide. Treatment is based on the use of tricyclic antidepressant, selective serotonin reuptake inhibitors, between others; that although are clinically effective has a delayed onset activity and produce important side effects. Medicinal plants are presented as a source of study in t...

For decades, linden trees (basswoods or lime trees), and particularly silver linden (Tilia tomentosa), have been linked to mass bee deaths. This phenomenon is often attributed to the purported occurrence of the carbohydrate mannose, which is toxic to bees, in Tilia nectar. In this review, however, we conclude that from existing literature there is no experimental evidence for toxicity to bees i...

The objective of the current study was to analyze the seasonal effect on differentiating tree species in an urban environment using multi-temporal hyperspectral data, Light Detection And Ranging (LiDAR) data, and a tree species database collected from the field. Two Airborne Imaging Spectrometer for Applications (AISA) hyperspectral images were collected, covering the Summer and Fall seasons. I...

Oak forests throughout the world are in a state of decline due to lack of oak seedling recruitment to larger size classes. Much of this recruitment decline has been attributed to changes in ecosystem disturbance regimes that have led to increased competition from other species. The Midwest Driftless Area forests in the United States are currently dominated by large oak trees of three species: Q...