Since the inception of the freshshipping tree fruit industry shortly after the California Gold Rush (during the 1860s and 1870s) the state’s dominant orchard system has been the open vase, with trees trained into a wide “cone” tree shape at relatively ample spacings within the orchard. Originally, trees were planted on wide, 22-to-25-foot spacings (70 to 90 trees per acre) in both directions to...

the purpose of this research was to assess the influence of several orchard systems involving trees trained to different leader numbers on growth, cropping, and fruit quality of two apple cultivars. the study was conducted during 1994-2007 at the fruit experimental station in samotwór, next to wrocław (south-western poland). one-year-old trees of ‘elstar’ and ‘jonagold’ cultivars on the m.9 roo...

Various plants and resources such as orchards are vulnerable to the detrimental effects of successful invasions by alien animal or plant species. To outline an appropriate policy response, we first use renewal theory to construct a stochastic model of optimal orchard management in the presence of a deleterious alien species. Next, we derive the orchard manager’s long run expected cost of orchar...

In this paper we present an approach to tree recognition and localisation in orchard environments for tree-crop applications. The method builds on the natural structure of the orchard by first segmenting the data into individual trees using a Hidden Semi-Markov Model. Second, a descriptor for representing the characteristics of the trees is introduced, allowing a Hidden Markov Model based match...

Pruning branches of apple trees is a labor-intensive task. robots can save manpower and reduce costs. A full map the orchard with collision-free paths, which navigation planning, essential. To improve efficiency tree pruning robot, an improved RRT-Connect algorithm was proposed. Firstly, to address disadvantage randomness in expansion algorithm, goal-biased strategy introduced. Secondly, shorte...

Both the Vogel Spindle and Spanish Bush systems will allow for the development of a “pedestrian orchard”. A pedestrian orchard is defined as an orchard where two-thirds of the crop can be harvested from the ground, without the use of tall ladders (Fig. 1). Harvesting fruit from the ground greatly enhances worker productivity. In a study that I conducted in The Dalles, Oregon pickers were able t...

The paper proposes a novel method for counting apples in an orchard using unmanned aerial vehicles (UAVs), also known as drones. authors acknowledge that traditional methods of are time-consuming and labor-intensive therefore propose more efficient accurate solution group drones equipped with high-resolution cameras. proposed involves convolutional neural network (CNN) called YOLOv5-v1 to detec...

abstract background: clearing the endotracheal tube through suctioning should be done to promote oxygenation. depth of suctioning is one of the variables in this regard. in shallow suctioning method, the catheter passes to the tip of the endotracheal tube, and in deep suctioning method, it passes beyond the tip into the trachea or brunches. this study aimed to evaluate the effect of shallow and...

We study the Orchard relation defined in [3] for generic configurations of points in the plane (also called order types). We introduce infinitesimally-close points and analyse the relation of this notion with the Orchard relation. The second part of the paper deals with monochromatic configurations (for the Orchard relation). We give the complete list of all monochromatic configurations up to 7...