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Creator:: Creasy, Glen L. and Breen, Patrick J.
Abstract:: The connection between the fruit-set disorder Inflorescence Necrosis (IN) and high ammonium (NI14+) in affected tissues has led to an investigation of NH4+ assimilation enzymes (principally glutamine synthetase (GS) and glutamate synthase) in grape tissues. Previous work in this department has suggested that toxic levels of NH4+ build up in...
Resource Type:: Technical Report
Full Text:: Creasy and Patrick Breen Department of Horticulture INTRODUCTION AND OBJECTIVES The connection

Creator:: Creasy, Glen L. and Breen, Patrick J.
Abstract:: Inflorescence Necrosis (IN) has been an unpredictable problem for grape growers in Oregon. The industry has seen significant losses due to this fruit set disorder in several out of the eight years since its first description in 1988, particularly in Pinot noir. Little is known of how to prevent the...
Resource Type:: Technical Report
Full Text:: Inflorescence Necrosis and Ammonia Metabolism Glen Creasy and Patrick Breen Department of Horticulture

Creator:: Creasy, Glen L. and Breen, Patrick J.
Abstract:: Oregon grape growers are sometimes troubled with fruit set problems. There are many types of fruit set disorders, but a recently described one is inflorescence necrosis (IN). Though many studies related to the disorder have been done at OSU and elsewhere, investigation into IN is still in its infancy. Several...
Resource Type:: Technical Report
Full Text:: . Creasy and Patrick J. Breen Department of Horticulture, Oregon State University INTRODUCTION AND

Creator:: Creasy, Glen L., Price, Steve, and Breen, Patrick J.
Abstract:: Poor set and low yields in 1988 and 1990 were, in part, attributed to Inflorescence Necrosis (IN), a disorder that results in death of flowers and rachis tissue near bloom-time. In isolated areas, IN has caused significant loss of crop in each year since then. Past research at OSU has...
Resource Type:: Technical Report
Full Text:: Grape Glen Creasy, Steve Price, and Patrick Breen Department of Horticulture Introduction and

Creator:: Renquist, Thomas A., 1947-, Martin, Lloyd W., Breen, Patrick J., Oregon State University. Agricultural Experiment Station, and Oregon Strawberry Commission
Abstract:: A series of studies during six years examined vegetative growth and fruit yield of the 'Olympus' strawberry when grown with black polyethylene mulch and drip irrigation. In some studies, plants were grown with or without mulch and irrigated at low, medium, or high levels for one or two months in...
Resource Type:: Technical Report
Full Text:: Lloyd W. Martin North Willamette Experiment Station Oregon State University Patrick J. Breen

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