Title of Oral/Poster Presentation

Effects of Spring High Tunnels on Primocane Raspberry Production

Presenter Information

Blake ChristensenFollow

Class

Article

Graduation Year

2017

College

College of Agriculture and Applied Sciences

Department

Plants, Soils, and Climate Department

Faculty Mentor

Brent Black

Presentation Type

Poster Presentation

Abstract

Effects of Spring High Tunnels on Primocane Raspberry Production

Blake Christensen, Brent Black

Primocane raspberries avoid winter injury by fruiting on first year canes, but fruit production in Northern Utah is later than needed for local markets. Early spring heat could help to maximize primocane growth and promote earlier production. We conducted a study to compare early heating with high tunnels to field production using two different primocane raspberry cultivars, Caroline and Josephine. High tunnel plastic was installed 17 March, and removed by 5 May. As fruit began to ripen, the high tunnel frames were covered with shade cloth to minimize sunburned drupelets. Field plots remained unshaded. Tunnel and field treatments were compared for yield, fruiting season, fruit size and quality. The tunnel treatments advanced primocane growth by up to 55 cm (18 May, Caroline), with early harvest advanced by approximately 24 days for ‘Caroline’ and 19 days for ‘Josephine’. High tunnels also increased marketable yield percentage, but had no effect on average berry size. Early spring heat with high tunnels represent an opportunity to shift primocane raspberry production earlier in the season to address local market needs in Northern Utah.

Location

North Atrium

Start Date

4-13-2017 10:30 AM

End Date

4-13-2017 11:45 AM

This document is currently not available here.

Share

COinS
 
Apr 13th, 10:30 AM Apr 13th, 11:45 AM

Effects of Spring High Tunnels on Primocane Raspberry Production

North Atrium

Effects of Spring High Tunnels on Primocane Raspberry Production

Blake Christensen, Brent Black

Primocane raspberries avoid winter injury by fruiting on first year canes, but fruit production in Northern Utah is later than needed for local markets. Early spring heat could help to maximize primocane growth and promote earlier production. We conducted a study to compare early heating with high tunnels to field production using two different primocane raspberry cultivars, Caroline and Josephine. High tunnel plastic was installed 17 March, and removed by 5 May. As fruit began to ripen, the high tunnel frames were covered with shade cloth to minimize sunburned drupelets. Field plots remained unshaded. Tunnel and field treatments were compared for yield, fruiting season, fruit size and quality. The tunnel treatments advanced primocane growth by up to 55 cm (18 May, Caroline), with early harvest advanced by approximately 24 days for ‘Caroline’ and 19 days for ‘Josephine’. High tunnels also increased marketable yield percentage, but had no effect on average berry size. Early spring heat with high tunnels represent an opportunity to shift primocane raspberry production earlier in the season to address local market needs in Northern Utah.