pruning of the plant canopy and paclobutrazol application to the root zone are agronomic practices that improve harvest yield in mango (mangifera indica l.) orchards. to assess the effect of pruning and paclobutrazol treatment on the vegetative and reproductive development of ‘ataulfo’ mango, three pruning dates (20 april, 20 may, and 20 june) and three concentrations of paclobutrazol (pbz) (7....

Many processes that are fundamental to tropical rainforest maintenance and regeneration take place in the forest canopy. Recently developed access techniques afford biologists nondestructive means to document and quantify canopy biota and their accompanying activities and interactions. Results from studies involving within-canopy observations and measurements of nutrient cycling, epiphyte distr...

Melbourne has an extensive canopy of street trees that provides an important urban amenity and contributes both to human health and wellbeing and as food and habitat for non-human animals. There is some evidence that the composition of Melbourne’s street trees is likely to change as a result of climate change (Kendal et al. 2011). However, we know little about what these changes may be, and wha...

In the part of the Loire River recently colonized by Eurasian beavers, we compared habitat characteristics among sites with lodges, sites with cut trees and sites without beaver. The absence of sandbank and canopy cover (by 10-15-m tall trees, by tall Salicaceae, and by bushy Salicaceae) appeared as good predictors for lodge settling. Based on this model, the number of proper lodge sites was es...

Analysing the penetration and droplet deposition characteristics in canopy of fruit trees is critical for optimising operational parameters air-assisted spraying equipment, achieving precise application chemicals, improving effectiveness tree pest disease control. We used a mobile LIDAR system to detect optical porosity conduct wind tunnel experiments investigate interaction between canopy, air...

In savanna vegetation, trees and their canopies provide an important, but scattered habitat. Seeds of plants growing under these nurse trees often are dispersed by animals, especially birds. In the present study, we investigated the influence of tree size and frugivore-dispersal on the genetic variation of the subcanopy species Pollichia campestris, using amplified fragment length polymorphisms...

The dependence of vegetation attenuation on propagation geometry has been experimentally investigated at SHF band for isolated single trees. Two measurement heights (Trunk and Canopy) have been used in these experiments that involve three fully foliated trees, Common Whitebeam (Sorbus aria), Silver Maple (Acer Saccharinum) and Common Hazel (Corylus Avellana). Result shows that apart from freque...

Orchard pesticide off-target deposition and drift cause substantial soil water pollution, other environmental pollution. target-oriented spraying technologies have been used to reduce the caused by control pollution within an acceptable range. Two systems based on photoelectric sensors or ultrasonic were developed. Three treatments of young cherry trees adult apple conducted using a commercial ...