Mesurments of Photosynthesis and Transpiration on Apple Trees

Mesurments of Sugars in Leaves on Apple Trees

“…In our case, we also observed a higher content of certain sugars in the leaves of 'empty' trees at a time when it was reduced photosynthesis (Kelc et al, 2015). It is interesting that this picture is reversed at the end of the season, when we have a higher content of sugars in the leaves of 'full' trees, compared to the 'empty' trees, which also means lower net photosynthesis in trees with fruits.…”

“…Comparing the levels of total sugars and photosynthesis in the leaves, we find an interesting link. As we have seen, the net photosynthesis until the last measurement is higher in the 'full' trees (Kelc et al, 2015). Last measurements of photosynthesis indicates a higher value in the leaves of 'empty' trees.…”

“…To summarize, we can say that the early removal of fruits significantly reduced the level of photosynthesis and transpiration (Kelc et al, 2015), on the other hand, it has only a minimal impact on the carbohydrates in the leaves. The quantities of sucrose, sorbitol, fructose and glucose in the leaves shows a similar seasonal changes and developments as reported at the preliminary studies of Berüter (1985Berüter ( , 1997, which also have not reported of statistically significant differences between the treatments.…”

Three-Dimensional Reconstruction of the Tree Canopy for Assessment of Leafs

“…However, the canopy varies enormously according to vegetative stage, tree age, varieties, plant density, leaf area, and training type. An electronic measuring systems, which were developed by individual researchers in the past and which we introduce hereinafter are based on an ultrasonic Berk et al, 2013), stereoscopic and spectral scanning systems (Kelc et al 2015). In this paper we will limit only to spectral scanning systems.…”

Simultanious Localization, Maping and Scene Reconstruction

“…Another useful scenario might be to use the 3D depth sensor to detect different fruits or crop and pick it (Dzitac et al, 2012). It can also be used to record the outline of the three crown silhouette (Kelc et al, 2015) in order to adjust the flow of the pesticide in the orchard (Berk et al, 2016;Stajnko et al, 2013). Where there are no trees, the valves are closed, when they are rare, the valves are partly open and when tick tree crowns are present, the valves are completely open.…”