scholarly journals Sensing and Automation in Pruning of Tree Fruit Crops: A Review

2018 ◽  
Author(s):  
Long He ◽  
James Schupp
Keyword(s):  
3D Structure ◽  
Fruit Production ◽  
Robotic Systems ◽  
Fruit Crops ◽  
Short Supply ◽  
End Effector ◽  
Tree Fruit ◽  
Structure Reconstruction ◽  
Human Labor ◽  
Tree Branch

Pruning is one of the most important tree fruit production activities, which is highly dependent on human labor. Skilled labor is in short supply, and the increasing cost of labor is becoming a big issue for the tree fruit industry. Growers are motivated to seek mechanical or robotic solutions for reducing the amount of hand labor required for pruning. This paper reviews the research and development of sensing and automated systems for branch pruning for tree fruit production. Horticultural advancements, pruning strategies, 3D structure reconstruction of tree branches, as well as practice mechanisms or robotics are some of the developments that need to be addressed for an effective tree branch pruning system. Our study summarizes the potential opportunities for automatic pruning with machine-friendly modern tree architectures, previous studies on sensor development, and efforts to develop and deploy mechanical/robotic systems for automated branch pruning. We also describe two examples of qualified pruning strategies that could potentially simplify the automated pruning decision and pruning end-effector design.  Finally, the limitations of current pruning technologies and other challenges for automated branch pruning are described, and possible solutions are discussed.

scholarly journals Sensing and Automation in Pruning of Apple Trees: A Review

Agronomy ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 211 ◽  
Author(s):  
Long He ◽  
James Schupp
Keyword(s):  
3D Structure ◽  
Fruit Production ◽  
Worker Safety ◽  
Robotic Systems ◽  
Short Supply ◽  
Training Systems ◽  
Tree Fruit ◽  
Human Labor ◽  
Apple Production ◽  
Tree Branch

Pruning is one of the most important tree fruit production activities, which is highly dependent on human labor. Skilled labor is in short supply, and the increasing cost of labor is becoming a big issue for the tree fruit industry. Meanwhile, worker safety is another issue in the manual pruning. Growers are motivated to seek mechanical or robotic solutions for reducing the amount of hand labor required for pruning. Identifying tree branches/canopies with sensors as well as automated operating pruning activity are the important components in the automated pruning system. This paper reviews the research and development of sensing and automated systems for branch pruning in apple production. Tree training systems, pruning strategies, 3D structure reconstruction of tree branches, and practice mechanisms or robotics are some of the developments that need to be addressed for an effective tree branch pruning system. Our study summarizes the potential opportunities for automatic pruning with machine-friendly modern tree architectures, previous studies on sensor development, and efforts to develop and deploy mechanical/robotic systems for automated branch pruning. We also describe two examples of qualified pruning strategies that could potentially simplify the automated pruning decision and pruning end-effector design. Finally, the limitations of current pruning technologies and other challenges for automated branch pruning are described, and possible solutions are discussed.

Hydrophobic Particle Films Improve Tree Fruit Productivity

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 548a-548 ◽  
Author(s):  
D.M. Glenn ◽  
G. Puterka ◽  
T. Baugher ◽  
T. Unruh ◽  
S. Drake
Keyword(s):  
West Virginia ◽  
Production Systems ◽  
Fruit Size ◽  
The United States ◽  
Fruit Production ◽  
Red Color ◽  
Tree Fruit ◽  
Fruit Productivity ◽  
Leaf Level ◽  
Hydrophobic Particle

Hydrophobic particle film technology (HPF) is a developing pest control system for tree fruit production systems. Studies were established in Chile, and Washington, Pennsylvania, and West Virginia in the United States, to evaluate the effect of HPF technology on tree fruit yield and quality. Studies in Chile, Washington, and West Virginia demonstrated increased photosynthetic rate at the leaf level. Yield was increased in peaches (Chile) and apples (West Virginia), and fruit size was increased in apples (Washington and Pennsylvania). Increased red color in apple was demonstrated at all sites with reduced russetting and `Stayman' cracking in Pennsylvania. HPF technology appears to be an effective tool in reducing water and heat stress in tree fruit resulting in increased fruit quality.

scholarly journals Zmiany w produkcji i eksporcie malin i wiśni w krajach Europy Południowej i Wschodniej i ich znaczenie dla produkcji w Polsce

2019 ◽  
Vol 19(34) (2) ◽  
pp. 65-76
Author(s):  
Sylwia Kierczyńska
Keyword(s):  
Small Area ◽  
Production Capacity ◽  
International Markets ◽  
Fruit Production ◽  
Southern Europe ◽  
Fruit Crops ◽  
Large Area ◽  
Production Potential ◽  
Export Volume ◽  
Lower Production

The aim of the study was to examine the changes in production and export of raspberries and sour cherries, which are the domain of Polish production on the international markets, in the countries of Eastern and Southern Europe during the 2006-2017. There was used data from Faostat database for the analysis of fruit production, and from Comtrade database for the analysis of export volume. Study points to the development of production and an increase in the export of raspberries in countries with a smaller area of cultivation of this fruit crops and stability in countries with a large area of crops of raspberries. In the case of sour cherries, in most countries, both large and small area plantings, production potential, and volume of production of fruit of this species declined. The export of sour cherries increased particularly from countries with less potential in the production of sour cherries. The development of the production and export of raspberries from countries with lower production capacity may in the future be competition for Poland on the international markets.

Tree Fruit Production

Soil Science ◽  
1959 ◽  
Vol 88 (1) ◽  
pp. 59 ◽  
Author(s):  
JAMES S. SHOEMAKER ◽  
BENJAMIN J. E. TESKEY
Keyword(s):  
Fruit Production ◽  
Tree Fruit

Mechanical harvest and in-field handling of tree fruit crops.

2018 ◽  
pp. 179-233
Author(s):  
M. Karkee ◽  
A. Silwal ◽  
J. R. Davidson
Keyword(s):  
Fruit Crops ◽  
Tree Fruit

scholarly journals Size Exclusion Chromatographic Cleanup for GC/MS Determination of Organophosphorus Pesticide Residues in Household and Vehicle Dust

2002 ◽  
Vol 85 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Thomas F Moate ◽  
Matthew Furia ◽  
Cynthia Curl ◽  
Juan F Muniz ◽  
Jianbo Yu ◽  
...  
Keyword(s):  
Organophosphorus Pesticides ◽  
Organophosphorus Pesticide ◽  
Fruit Production ◽  
Size Exclusion ◽  
Gas Chromatography Mass Spectrometry ◽  
Selected Ion Monitoring ◽  
Size Exclusion Chromatographic ◽  
Tree Fruit ◽  
Exclusion Chromatography

Abstract Size exclusion chromatography (SEC) was used as a cleanup method for the analysis of organophosphorus pesticides in household and vehicle dusts. The pesticides investigated were diazinon, methyl parathion, chlorpyrifos, malathion, phosmet, and azinphosmethyl. These compounds are of interest due to their use in agricultural tree fruit production and/or urban pest control. Pesticides were determined via gas chromatography/mass spectrometry with selected-ion monitoring and cool on-column injection. The lower limit of method validation was 0.20 μg/g. Method limits of detection in dust ranged from 0.012–0.055 μg/g. Dust samples were collected with vacuums from the homes and vehicles of people living and working in a rural agricultural region in the central part of Washington State. The analytes were extracted from the dust by sonication in acetone. The extracts were solvent-exchanged to cyclohexane, frozen, thawed, and centrifuged prior to SEC injection. Following SEC, the eluent was split into 2 fractions, concentrated, and injected on-column into the gas chromatograph. This method represents the first complete publication describing the SEC cleanup of organophosphorus pesticides in dusts. Recoveries of pesticides in dusts ranged from 63.5–110.8 ± 4.9–19.6% over a fortification range of 0.20–10.00 μg/g. This optimized, automated, and reproducible SEC method does not require further treatment or cleanup for trace determination of these organophosphorus pesticides.

Variable-Velocity Exponential Input Shaping for Position Controlled Robotic Systems

2010 ◽  
Author(s):  
P. Iravani ◽  
M. N. Sahinkaya
Keyword(s):  
Inverse Dynamics ◽  
Vibration Reduction ◽  
Robotic Systems ◽  
Input Shaping ◽  
Control Input ◽  
End Effector ◽  
Flexible System ◽  
Flexible Loads ◽  
New Form ◽  
Point To Point

This paper demonstrates a new form of Input Shaping for vibration reduction applied to robotic systems that manipulate flexible loads. The method is based on using an exponential function to define asymptotic and vibration-free trajectories for the flexible system. The required control input is calculated analytically by using inverse dynamics which ensures the desired end-effector trajectory. The method is demonstrated experimentally on the control of point-to-point movements of a robotic manipulator.

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