Mechanical harvesting of selected temperate and tropical fruit and nut trees

L Afsah‐Hejri, T Homayouni, A Toudeshki… - Horticultural …, 2022 - Wiley Online Library
Manual harvesting of fruits is an expensive, time‐consuming, and labor‐intensive operation.
Due to labor shortages in the late 1950s, mechanical harvesters were developed to reduce …

Deep learning techniques for estimation of the yield and size of citrus fruits using a UAV

OE Apolo-Apolo, J Martínez-Guanter, G Egea… - European Journal of …, 2020 - Elsevier
Accurate and early estimation of citrus yields is important for both producers and agricultural
cooperatives to be competitive and make informed decisions when selling their products …

[HTML][HTML] Recent progress and future prospects for mechanized harvesting of fruit crops with shaking systems

Y Pu, S Wang, F Yang, R Ehsani, L Zhao, C Li… - International Journal of …, 2023 - ijabe.org
Mechanized harvesting technologies with shaking systems for fruit industry have been
widely investigated and significantly developed over the past several decades which were …

YOLOC-tiny: a generalized lightweight real-time detection model for multiripeness fruits of large non-green-ripe citrus in unstructured environments

Z Tang, L Xu, H Li, M Chen, X Shi, L Zhou… - Frontiers in Plant …, 2024 - frontiersin.org
This study addresses the challenges of low detection precision and limited generalization
across various ripeness levels and varieties for large non-green-ripe citrus fruits in complex …

Comparison of a lightweight experimental shaker and an orchard tractor mounted trunk shaker for fresh market citrus harvesting

C Ortiz, A Torregrosa, S Castro-García - Agriculture, 2021 - mdpi.com
A designed lightweight experimental shaker successfully used to collect ornamental
oranges has been tested to harvest fresh market citrus. The aim of this study was to evaluate …

Simultaneous Trunk and Canopy Shaking Improves Table Olive Harvester Efficiency versus Trunk Shaking Alone

T Homayouni, M Maharlooei, A Toudeshki, L Ferguson… - Horticulturae, 2023 - mdpi.com
Production of California table olives has declined significantly in recent years due to hand
harvesting costs, often over 60% of gross return. Mechanical harvesting could sharply …

Citrus fruit movement assessment related to fruit damage during harvesting with an experimental low-frequency–high-amplitude device

C Ortiz, A Torregrosa, S Castro-García - Agronomy, 2022 - mdpi.com
The profitability of fresh citrus crops outlines the possibility of using mechanical systems to
reduce the high cost of the manual harvesting operation. In this line, an experimental light …

Shedding frequency and motion of jujube fruits in various excitation modes

J Zhou, L Xu, Y Xuan, Y Xu, G Liu - Transactions of the ASABE, 2020 - elibrary.asabe.org
Highlights The motion responses of fruits varied greatly in different excitation modes. The
excitation modes included horizontal, vertical, and rotational. The shedding frequency of …

The vibrational response of simulated Ginkgo biloba fruit based on their frequency spectrum characteristics

Y Xuan, L Xu, G Liu, J Zhou - PLoS One, 2020 - journals.plos.org
The most effective method for harvesting forest fruit is the mechanical vibration harvesting
method. During the forced vibration process, the fruit will be shed from the tree when the …

Frequency response curves and dynamic characteristics of a ginkgo tree in different growth periods

J Zhou, L Xu, G Liu, Y Xuan, H Zhou… - Transactions of the …, 2020 - elibrary.asabe.org
Highlights The frequency domain modal parameters identification method was applied to a
ginkgo tree. Dynamic characteristics of the ginkgo tree were tested during five phenological …