Modifying Apple Tree Canopies for Improved Production Efficiency
نویسندگان
چکیده
منابع مشابه
Apple detection in natural tree canopies from multimodal images
In this work we develop a real time system that recognizes occluded green apples within a tree canopy using infra-red and color images in order to achieve automated harvesting. Infra-red provides clues regarding the physical structure and location of the apples based on their temperature (leaves accumulate less heat and radiate faster than apples), while color images provide evidence of circula...
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Electronic canopy characterization is an important issue in tree crop management. Ultrasonic and optical sensors are the most used for this purpose. The objective of this work was to assess the performance of an ultrasonic sensor under laboratory and field conditions in order to provide reliable estimations of distance measurements to apple tree canopies. To this purpose, a methodology has been...
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Field investigations were conducted to determine the resting locations of codling moth (Cydia pomonella [L.]) (Lepidoptera: Tortricidae) males and females in mating disrupted and nondisrupted apple (Malus domestica Borkh.) orchard plots. A custom-made sampling device, consisting of a leaf blower converted into a powerful vacuum, yielded 20-24% success in recovering marked moths, released in th...
متن کاملDaily and seasonal dynamics of remotely sensed photosynthetic efficiency in tree canopies.
The photosynthesis of various species or even a single plant varies dramatically in time and space, creating great spatial heterogeneity within a plant canopy. Continuous and spatially explicit monitoring is, therefore, required to assess the dynamic response of plant photosynthesis to the changing environment. This is a very challenging task when using the existing portable field instrumentati...
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INTERNATIONAL DWARF FRUIT TREE ASSOCIATION Apple yield and fruit quality are the end result of myriad cultural practices (e.g., pruning, thinning, spraying), environmental inputs (e.g., light, carbon dioxide, water, nutrient supply) and physiological processes (e.g., leaf area development, light interception, photosynthesis, respiration). All of them are truly essential contributors to fruit pr...
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ژورنال
عنوان ژورنال: HortScience
سال: 1991
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.26.8.1005