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The Response of ‘Montmorency’ Tart Cherry to Renewal Pruning Strategies in a High Density System

SW15-029 (project overview)
Project Type: Research and Education
Funds awarded in 2015: $230,154.00
Projected End Date: 12/31/2018
Grant Recipient: Utah State University
Region: Western
State: Utah
Principal Investigator:
Dr. Brent Black
Email
Utah State University
Description:
Tart cherry (Prunus cerasus) production in the U.S. is based on low-density plantings designed to accommodate large trunk-shake mechanical harvesters. Availability of canopy-shake harvesters adapted to smaller trees could facilitate transitioning to high-density (HD) precocious systems, based on continuous fruiting walls that are highly efficient at light capture. HD systems would require specialized pruning techniques to maintain long-term productivity while maximizing the efficiency of a limited labor supply. Experimental HD orchards with multiple rootstocks, training systems and tree densities were used for investigating renewal pruning strategies. Pruning cuts of predetermined lengths ranging from 0 cm to 25 cm were made on branches of differing size (0.6 cm to 4.7 cm diameter), and renewal growth was monitored for shoot number and length. The minimum stub length for generating at least one renewal shoot was approximately 10 cm. However, this differed somewhat with rootstock and diameter of the cut branch, where the critical length was shorter for larger diameter branches and on the more vigorous rootstock. Results provide guidelines on pruning of HD plantings to renew fruiting wood and maintain productivity.
Type:
Peer-reviewed Journal Article
File:
Download file (PDF)
Authors:
Sheriden Hansen, USU Extension
Brent Black, USU
Target audience:
Researchers
URL:
https://www.pubhort.org/aps/
Ordering info:
https://www.pubhort.org/aps/
Cost: $0.00
This product is associated with the project "Improving Tart Cherry Sustainability"
Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.

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