Technical Report

 

Inflorescence Necrosis and Ammonium in Grape 1994-1995 Public Deposited

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https://ir.library.oregonstate.edu/concern/technical_reports/v979v422m

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  • 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 indicated that high vigor and vine shade worsen IN, and that vines more severely affected by IN have higher concentrations of ammonium ion (NH,"), which seems to be the cause of IN symptoms in cluster tissue. However, there is still much that we do not understand about IN. Currently, our research is focusing on determining how viticultural factors affect NH," concentrations in flower tissues and investigating one possible reason why NH,~ may build up to toxic levels.
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  • Creasy, G. L., Price, S., & Breen, P. J. (1995). Inflorescence Necrosis and Ammonium in Grape 1994-1995. Oregon Wine Advisory Board Research Progress Report.
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  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-02-10T17:15:03Z No. of bitstreams: 1 Inflorescence Necrosis and Ammonium in Grape.pdf: 112579 bytes, checksum: c8cf7a4219e6641452acacadb9f7051d (MD5)
  • description.provenance : Made available in DSpace on 2016-02-10T17:15:31Z (GMT). No. of bitstreams: 1 Inflorescence Necrosis and Ammonium in Grape.pdf: 112579 bytes, checksum: c8cf7a4219e6641452acacadb9f7051d (MD5) Previous issue date: 1995
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-02-10T17:15:31Z (GMT) No. of bitstreams: 1 Inflorescence Necrosis and Ammonium in Grape.pdf: 112579 bytes, checksum: c8cf7a4219e6641452acacadb9f7051d (MD5)

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