易胜博官网 researchers discuss exploring how strawberry varieties and low tunnel options can extend the production of fruit in the Northeast.
Researchers with the at the University of 易胜博官网 have succeeded in quadrupling the length of the Granite State鈥檚 strawberry growing season as part of a multi-year research project that aims to benefit both growers and consumers.
易胜博官网鈥檚 strawberry season traditionally lasts only four to six weeks . However, researchers working on the multi-state were picking day-neutral strawberries in Durham last November. Last year, experiment station researchers harvested strawberries grown in low tunnels for 19 consecutive weeks from mid-July through the week of Thanksgiving. They also found that the low tunnels significantly increased the percentage of marketable fruit, from an average of about 70 percent to 83 percent.

The TunnelBerries research project is being conducted at the in Durham, a facility of the NH Agricultural Experiment Station. It is part of a larger, multi-state USDA-funded initiative to optimize protected growing environments for berry crops in the upper Midwest and Northeastern United States. 易胜博官网鈥檚 component is focused on improving berry quality and the role day-neutral varieties may play in extending the length of strawberry season in the Northeast.
鈥淢ost New Englanders look forward to strawberry season because regionally produced strawberries are delicious. They also are a very valuable early season crop for farmers throughout the region. Unfortunately, though, this season is very brief, usually only about four to six weeks each year, limiting the period in which our regional producers are able to meet consumer demand for the fresh fruit. A longer strawberry season is good for both grower and consumer,鈥 said graduate student Kaitlyn Orde, who is working with experiment station researcher Becky Sideman on the project.
Sideman, an associate professor of plant biology and 易胜博官网 Cooperative Extension professor and specialist in sustainable horticulture production, estimates the retail value of 易胜博官网鈥檚 strawberry crops at about $1.85 million, which she says is a conservative estimate.

The 易胜博官网 project consists of two parts. Researchers want to determine the yield and fruiting duration of day-neutral strawberry varieties. Day-neutrals are a different plant-type than the traditional June-bearers most common in 易胜博官网; day-neutrals (or ever-bearing) have been shown to fruit continuously for four to six months in the region. In addition, day-neutrals fruit the same year they are planted, which is not the case with June-bearers.
鈥淲e are growing one day-neutral variety on three different mulches to determine if there are any differences in total production, production patterns, runner production, and fruit characteristics among the mulches,鈥 Orde said. 鈥淲e also are investigating the role plastic covered low-tunnels play in improving berry quality, and what the microenvironment is within low tunnels, especially late season. To do this, we are evaluating five different plastics for the low tunnels.鈥
Researchers in Maryland, Minnesota, North Carolina, and New York have conducted preliminary research on similar systems. There also are limited growers in the Northeast who already cultivate day-neutral varieties, and even fewer who have experimented with low-tunnels in combination with the strawberry crop. However, there are no yield estimates or material recommendations, such as mulch or low tunnel cover, for 易胜博官网 producers.
This material is based upon work supported by the NH Agricultural Experiment Station, through joint funding of the National Institute of Food and Agriculture, U.S. Department of Agriculture, under award number 1006928, and the state of 易胜博官网. It also is funded through the USDA NIFA Specialty Crop Research Initiative under Award Number 2014-51181-22380 in collaboration with Eric Hanson (MSU), AJ Both (Rutgers), David Conner (UVM), Dennis Decoteau (Penn State), Kathleen Demchak (Penn State), Emily Hoover (UMN), Rufus Isaacs (MSU), Kathleen Kelley (Penn State), William Lamont (Penn State), Lois Levitan (Cornell), Richard Marini (Penn State), Marvin Pritts (Cornell), Annemiek Schiler (MSU) and Becky Sideman (易胜博官网). Additional financial support was provided by the NH Vegetable & Berry Growers鈥 Association and 易胜博官网 Cooperative Extension.
-
Written By:
Lori Wright, '06G | NH Agricultural Experiment Station | lori.wright@unh.edu | 16038621452