New Tools for Mechanical Thinning of Apricot Fruitlets

In this study, the thinner machine with yellow rod equipment was tested in relation to tree branch length and orientation in April 2019, in a narrow-canopied apricot orchard of Emilia Romagna Region, Italy. The trees were mechanically thinned with manual finishing, and comparative tests were carried...

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Autores principales:	Alberto Assirelli, Giuseppina Caracciolo, Giancarlo Roccuzzo, Fiorella Stagno
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Prunus armeniaca</i> L. crop load young fruits thinning machine Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/14063dc99b124c26ab64f9fdceeda1cc
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spelling	oai:doaj.org-article:14063dc99b124c26ab64f9fdceeda1cc2021-11-25T16:00:16ZNew Tools for Mechanical Thinning of Apricot Fruitlets10.3390/agriculture111111382077-0472https://doaj.org/article/14063dc99b124c26ab64f9fdceeda1cc2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0472/11/11/1138https://doaj.org/toc/2077-0472In this study, the thinner machine with yellow rod equipment was tested in relation to tree branch length and orientation in April 2019, in a narrow-canopied apricot orchard of Emilia Romagna Region, Italy. The trees were mechanically thinned with manual finishing, and comparative tests were carried out simultaneously with the ordinary hand thinning (control). Three groups of two plants were identified as replication for a total of six plants per row. Three rows were checked, considering field uniformity average. The branches were grouped into four classes according to their length: <30 cm, 30–60 cm, 60–90 cm and >90 cm. Branch inclination on the plant, radial or longitudinal with respect to the row, was evaluated. Fruit number before the thinning, after the first and the second machine intervention, after three days of the mechanical thinning and after the hand finishing was recorded. This experience showed satisfactory results in terms of thinning efficiency and reduced damage to both fruits and branches, as a function of the class length and insertion point in the main branch of the plant. Thinning efficiency was always kept above 37% of the left load after hand finishing, and on average between the treatments close to 44%. Fruit damages always remained below the economic thresholds to marketable production or to the plant.Alberto AssirelliGiuseppina CaraccioloGiancarlo RoccuzzoFiorella StagnoMDPI AGarticle<i>Prunus armeniaca</i> L.crop loadyoung fruitsthinning machineAgriculture (General)S1-972ENAgriculture, Vol 11, Iss 1138, p 1138 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Prunus armeniaca</i> L. crop load young fruits thinning machine Agriculture (General) S1-972
spellingShingle	<i>Prunus armeniaca</i> L. crop load young fruits thinning machine Agriculture (General) S1-972 Alberto Assirelli Giuseppina Caracciolo Giancarlo Roccuzzo Fiorella Stagno New Tools for Mechanical Thinning of Apricot Fruitlets
description	In this study, the thinner machine with yellow rod equipment was tested in relation to tree branch length and orientation in April 2019, in a narrow-canopied apricot orchard of Emilia Romagna Region, Italy. The trees were mechanically thinned with manual finishing, and comparative tests were carried out simultaneously with the ordinary hand thinning (control). Three groups of two plants were identified as replication for a total of six plants per row. Three rows were checked, considering field uniformity average. The branches were grouped into four classes according to their length: <30 cm, 30–60 cm, 60–90 cm and >90 cm. Branch inclination on the plant, radial or longitudinal with respect to the row, was evaluated. Fruit number before the thinning, after the first and the second machine intervention, after three days of the mechanical thinning and after the hand finishing was recorded. This experience showed satisfactory results in terms of thinning efficiency and reduced damage to both fruits and branches, as a function of the class length and insertion point in the main branch of the plant. Thinning efficiency was always kept above 37% of the left load after hand finishing, and on average between the treatments close to 44%. Fruit damages always remained below the economic thresholds to marketable production or to the plant.
format	article
author	Alberto Assirelli Giuseppina Caracciolo Giancarlo Roccuzzo Fiorella Stagno
author_facet	Alberto Assirelli Giuseppina Caracciolo Giancarlo Roccuzzo Fiorella Stagno
author_sort	Alberto Assirelli
title	New Tools for Mechanical Thinning of Apricot Fruitlets
title_short	New Tools for Mechanical Thinning of Apricot Fruitlets
title_full	New Tools for Mechanical Thinning of Apricot Fruitlets
title_fullStr	New Tools for Mechanical Thinning of Apricot Fruitlets
title_full_unstemmed	New Tools for Mechanical Thinning of Apricot Fruitlets
title_sort	new tools for mechanical thinning of apricot fruitlets
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/14063dc99b124c26ab64f9fdceeda1cc
work_keys_str_mv	AT albertoassirelli newtoolsformechanicalthinningofapricotfruitlets AT giuseppinacaracciolo newtoolsformechanicalthinningofapricotfruitlets AT giancarloroccuzzo newtoolsformechanicalthinningofapricotfruitlets AT fiorellastagno newtoolsformechanicalthinningofapricotfruitlets
_version_	1718413363293192192

New Tools for Mechanical Thinning of Apricot Fruitlets

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