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Mechanization in the Cider Apple Orchard to Reduce Labor Time.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Mechanization in the Cider Apple Orchard to Reduce Labor Time./
Author:	Brawner, Seth C.
Description:	1 online resource (103 pages)
Notes:	Source: Masters Abstracts International, Volume: 86-02.
Contained By:	Masters Abstracts International86-02.
Subject:	Horticulture. -
Online resource:	click for full text (PQDT)
ISBN:	9798383619445

Mechanization in the Cider Apple Orchard to Reduce Labor Time.
Brawner, Seth C.

Mechanization in the Cider Apple Orchard to Reduce Labor Time. - 1 online resource (103 pages)

Source: Masters Abstracts International, Volume: 86-02.

Thesis (M.S.)--Washington State University, 2024.

Includes bibliographical references

While fresh-eating, dessert apples dominate the apple market of Washington State, the over 30-fold national increase in volumetric cider production over the past 15 years indicates there is growing demand for specialty cider apples, or apple cultivars with positive cider-making attributes such as high polyphenol content and titratable acidity. In a commercial cider orchard, the labor costs associated with thinning, pruning, and harvest comprise a majority of the annual variable production costs once the orchard is in full production; thus, reducing the labor time to perform these tasks has the potential to increase the appeal and profitability of growing cider apples. Further, when cider apples are pressed into juice soon after harvest, cosmetic damage and bruising of the fruit during harvest has minimal impact on juice quality, indicating a strong potential for harvest mechanization. This study separately examines summer mechanical hedging for pruning and shaping orchard rows, as well as mechanized over-the-row harvest (using a modified Oxbo-Korvan 930 harvester) in a multi-cultivar cider apple orchard. Mechanical hedging both sides of the orchard row occurred at a rate of 2.1-3.5 seconds per meter across 5 years. Across 16 cultivars and 3 years, mechanical harvest occurred at a rate of 2.7-3.1 seconds per meter, and the average capture efficiency was 82% with no significant differences among cultivars. Based on these results, a combination of mechanical pruning and harvest could significantly lower labor time, and thus the total production costs, associated with growing cider apples.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798383619445Subjects--Topical Terms:

1058420
Horticulture.
Subjects--Index Terms:

Cider applesIndex Terms--Genre/Form:

554714
Electronic books.

Mechanization in the Cider Apple Orchard to Reduce Labor Time.
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520 $a While fresh-eating, dessert apples dominate the apple market of Washington State, the over 30-fold national increase in volumetric cider production over the past 15 years indicates there is growing demand for specialty cider apples, or apple cultivars with positive cider-making attributes such as high polyphenol content and titratable acidity. In a commercial cider orchard, the labor costs associated with thinning, pruning, and harvest comprise a majority of the annual variable production costs once the orchard is in full production; thus, reducing the labor time to perform these tasks has the potential to increase the appeal and profitability of growing cider apples. Further, when cider apples are pressed into juice soon after harvest, cosmetic damage and bruising of the fruit during harvest has minimal impact on juice quality, indicating a strong potential for harvest mechanization. This study separately examines summer mechanical hedging for pruning and shaping orchard rows, as well as mechanized over-the-row harvest (using a modified Oxbo-Korvan 930 harvester) in a multi-cultivar cider apple orchard. Mechanical hedging both sides of the orchard row occurred at a rate of 2.1-3.5 seconds per meter across 5 years. Across 16 cultivars and 3 years, mechanical harvest occurred at a rate of 2.7-3.1 seconds per meter, and the average capture efficiency was 82% with no significant differences among cultivars. Based on these results, a combination of mechanical pruning and harvest could significantly lower labor time, and thus the total production costs, associated with growing cider apples.
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650 4 $a Agricultural engineering. $3 1148660
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653 $a Cider apples
653 $a Fruiting wall
653 $a Labor time
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653 $a Over-the-row harvest
653 $a Summer hedging
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