16. Cultivar Yields Under Tunnels g/12 ft plot/wk Heritage NY63 Caroline Josephine A. Britten NY65 170 g per ½ pint 5 plants per plot Weeks (Aug 22 = 1)
17.
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19. Was also the favorite for flavor Josephine Heritage
20. Treatments Five manipulations of Heritage (applied in the second year) Straw mulch Mowing Early pinching Late pinching Control
21. First year at planting – light mulch for establishment
22. Beginning of treatments: Middle of February of first year Old canes are cut to the ground. Here we removed snow on certain plots to freeze the soil.
45. Equivalents 20,000 lbs/acre in tunnels vs. 2,000 in field row spacing (2X) harvest season (2.5X) physiology (2X) Price is $5.00/pt in fall vs. $2.50 in season Gross revenues: $150,000 per acre equivalent
46. Strategy #2: Early primocane-fruiting raspberry production Early covering of the tunnel Covering individual rows Row cover Plastic
49. Yield comparison Applying the plastic in September for extended fall harvest Applying the plastic in early spring for accelerated harvest 2,860 half-pints per tunnel 2,855 half-pints per tunnel
56. Blackberry Variety Trial Planting established in 2006. Chester added in 2007. Varieties: Ouachita, Triple Crown, Chester, Doyle. Preplant prep – compost amendment. Dormant cuttings. Two replications (4 plants, 16 ft row) Yield, berry weight, % marketable fruit data collected for field and HT production. HT blackberries girdled by rabbits during winter 2009 – no data. Exclusion fencing added in 2010; no damage, plants performed well.
81. Prime Jan Planting established in 2007. Plants were manipulated in 2009 with 1 tying and 2 tipping treatments to determine effects on yield and timing of fruiting. Four replications (3 plants,12 ft row ). Treatments: Early Pinch – plants soft pinched/ tipped at 1m. Late Pinch – plants soft pinched/ tipped at 1.5m (July just before flowering) Tying – Floricanes were tied laterally to wire (1.5m) just prior to flowering Control – untreated
100. Conclusions Raspberries and blackberries can be manipulated in different ways to fruit over a very long period of time Tunnels, coupled with cultural manipulations, can dramatically extend the season and increase yields, even in cold climates.
101. High Tunnel Raspberries and Blackberries Department of Horticulture Publication No.47 (2007) Authors: Cathy Heidenreich, Marvin Pritts, Mary Jo Kelly, and Kathy Demchak On line at: http://www.fruit.cornell.edu/berry.html
102. Questions? Dr. Marvin Pritts, Professor and Chair Cornell University Department of Horticulture 607-255-1778 mpp3@cornell.edu