Tim, Any observations / knowledge / experience with Bud 9 during the cold snap of 2010?
On Thu, Oct 24, 2013 at 1:45 PM, Smith, Timothy J <smit...@wsu.edu> wrote: > R: winter hardiness of Nic29 /M9:**** > > ** ** > > The common problem in the inland Pacific Northwest isn’t often from > classic, low temperature winter damage. Our more common problems with the > M9 clones comes from sudden “cold snaps” in the fall. The trunks of > younger trees on M9 seem slower to develop tolerance for low temperatures > in the fall. The latest cold snap was in late November 2010, when regional > temperatures stayed up in the 55-60F highs and 45F lows for the weeks > before diving down to 8 to18F below zero in 2 days. This did a lot of > trunk damage in some orchards, and we are still seeing effects in some > orchards. The rootstocks weren’t injured at all, and many of them sent up > a fringe of collar suckers in response to the trunk injury. **** > > ** ** > > One rootstock that sometimes will die from the cold the first few winters, > with no cold damage to the scion, is EMLA 106. They become much hardier > with age. I believe I have misidentified winter damage as Phytophthora > collar rot a few times in orchards on 106.**** > > ** ** > > Tim Smith**** > > WSU**** > > > > **** > > **** > > Does anyone have any experience with the winter hardiness of M9-Nic29 > rootstock? **** > > > _______________________________________________ > apple-crop mailing list > apple-crop@virtualorchard.net > http://virtualorchard.net/mailman/listinfo/apple-crop**** > > ** ** > > _______________________________________________ > apple-crop mailing list > apple-crop@virtualorchard.net > http://virtualorchard.net/mailman/listinfo/apple-crop**** > > ** ** > > Vincent Philion, agr., M.Sc.**** > > Microbiologiste/Phytopathologiste (pomiculture)**** > > ** ** > > Institut de recherche et de développement en agro-environnement**** > > Research and Development Institute for the Agri-Environment**** > > ** ** > > www.irda.qc.ca**** > > ** ** > > Centre de recherche**** > > 335, Rang des Vingt-Cinq Est > Saint-Bruno-de-Montarville (Québec) J3V 0G7**** > > vincent.phil...@irda.qc.ca**** > > Bureau: 450 653-7368 poste 350**** > > Cellulaire: 514-623-8275**** > > Skype: VENTURIA**** > > Télécopie: 450 653-1927 **** > > ** ** > > Verger expérimental**** > > 330, Rang des vingt-cinq Est**** > > Saint-Bruno-de-Montarville (Québec) J3V 4P6**** > > Téléphone et télécopieur : 450 653-8375**** > > Local pesticide: 450-653-7608**** > > ** ** > > > Pour nous trouver, cliquer sur le lien: > Laboratoire<http://maps.google.ca/maps/place?cid=9609486867104665866&q=irda+pfi&hl=fr&sll=45.557814,-73.360476&sspn=8.87586,1.961403&ie=UTF8&ll=45.557814,-73.360476&spn=0,0&z=16> > **** > > Verger<http://maps.google.ca/maps/place?cid=11405391288824931904&q=verger+irda&hl=fr&sll=45.54961,-73.350585&sspn=0.012504,0.018389&ie=UTF8&ll=45.54961,-73.350585&spn=0,0&z=16> > **** > > ** ** > > Fiers héritiers du travail des frères Saint-Gabriel: > http://arboretum8gabrielis.wordpress.com**** > > ** ** > > > _______________________________________________ > apple-crop mailing list > apple-crop@virtualorchard.net > http://virtualorchard.net/mailman/listinfo/apple-crop**** > > ** ** > > _______________________________________________ > apple-crop mailing list > apple-crop@virtualorchard.net > http://virtualorchard.net/mailman/listinfo/apple-crop > >
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