Primocane-Fruiting Black Raspberry Breeding Program - Pete Tallman

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Wild Selection W1 First observed October 1986 Reliable primocane fruiting Berries small Plants small Low fruit count Late Sept., early Oct. ripening Wanted more! PF Black Raspberry Available? No commercial source No breeding work found Several historical references ‘W1’ could be something special 2/17/13 Peter H. Tallman 31 2/17/13 Peter H. Tallman 32 A. J. Downing The Fruits and Fruit Trees of America, by A. J. Downing, (1 st ed. 1845), revised ed.1869 ‘Ohio Everbearing’ Found by Nicholas Longworth near Lake Erie, Cincinnati, 1832 Downing believed it had been grown earlier at an Ohio Quaker settlement “[Ohio Everbearing] …has the valuable property of bearing abundant crops of fine fruit, till late in the season. We have seen a quart gathered from a single plant on the 1 st day of November. It deserves a place in every large garden.” NY State Ag. Exp. Station The Small Fruits of New York, by U. P. Hedrick, NYSAES, Geneva, 1925 252 named black raspberry varieties 15 named varieties of primocane-fruiting black raspberry, including ‘Ohio Everbearing’ ‘Ohio Everbearing’ Berries small, acid, poor quality Summer crop unproductive Cultivar dropped 1897! 2/17/13 Peter H. Tallman 33 2/17/13 Peter H. Tallman 34 Recent Sightings Dr. James Ballington, North Carolina State U. Limited primocane fruiting for a few NC wild selections Occasionally, ‘Jewel’ in southern states (NAFEX Pomona Spring 1992; private communication, 2005) Crops not commercially useful Improvement attempts unsuccessful Dr. Chad Finn, USDA-ARS, Corvallis, OR Growing several primocane-fruiting selections None ready for release Pete’s Breeding Program NAFEX Pomona Article Summer 1991 I found a fall-bearing black raspberry Wonder if I should breed it? North American Fruit Explorers (NAFEX), www.nafex.org 2/17/13 Peter H. Tallman 35 2/17/13 Peter H. Tallman 36 6
NAFEX Connections (as the result of my article) Collins Brooks, Arkansas Detailed controlled crossing & germination instructions Propagation instructions, misting bench plans Chance wild seedling (CB) Lon Rombough – Ongoing encouragement, guidance Jim Ballington, North Carolina State U. breeder Crossing suggestions Germination treatment W1 Material Shared 1991-1993 Shared Seeds & Plants NAFEX members NCGR Corvallis, Oregon (CRUB 1391 PI 618559) Paul Otten, North Star Gardens, Minnesota Dr. Harry Jan Swartz, U of Md. 2/17/13 Peter H. Tallman 37 2/17/13 Peter H. Tallman 38 Lots to Learn Controlled crossing Propagation Germination Scarification Stratification Genetic inheritance Initial Breeding Program Goals, 1991 “Commercially viable fall-bearing black raspberry” Cross with commercial cultivars Plant Patent potential 2/17/13 Peter H. Tallman 39 2/17/13 Peter H. Tallman 40 Primocane-Fruiting Trait Initial op seedlings of W1 were also pf! Trait apparently recessive in crosses to some degree Reappears in F2 generation seedlings Exception: Haut in F1 Trait moved into cross lines from Jewel, Allen, Haut, CB 2/17/13 Peter H. Tallman 41 Selection Progress Better selections marked and reused Open pollinated seedlings, i.e. “selfed” Crosses using better selections With cultivars With other selections Poor performers eliminated Iterate 2/17/13 Peter H. Tallman 42 7
Page 1 and 2: Primocane-Fruiting Black Raspberry
Page 3 and 4: Stigma receptive Look for a sticky
Page 5: Elite Selection; Now what?! Propag
Page 9 and 10: Explorer Berries Avg. 1.8 to 2.0g

Primocane-Fruiting Black Raspberry Breeding Program - Pete Tallman

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