[Nc140] 2015 Organic Apple Trial

Thu Oct 27 17:49:09 EDT 2016

Great thank you Greg.

On 10/27/2016 2:34 PM, Gregory Lang wrote:
> Here’s the tentative MI listing, Stefano…..
>
> Greg
>
>
>> On Oct 27, 2016, at 4:53 PM, Stefano Musacchi 
>> <stefano.musacchi at wsu.edu <mailto:stefano.musacchi at wsu.edu>> wrote:
>>
>> Hello Everybody,
>> I am trying to figure out who is involved in the apple trials too. I 
>> am also looking for a potential coordinator and participates of the a 
>> new apple rootstocks trial 2018. We can discuss these subjects during 
>> the meeting. Actually I received a request of interest from Susanne 
>> Blatt. I would like to know if other State are interested.
>> I am also asking Gennaro if he can provide a list of new rootstocks 
>> from his program to be included in the new trial. It will be nice if 
>> you can present informally to the apple group some of the new 
>> genotypes you are testing.   I knew you are testing new genotypes 
>> also in Washington and I would like to know if you have in mind 3-4 
>> genotypes interesting that can be included in the 2018 trial.
>> During the meeting I also would like to have a discussion about the 
>> future trials design and management.
>> Following the report of 2015  I build up this table please fill it 
>> with your name and if the trial have two cultivars specify which you 
>> have under evaluation.
>> It will take only few minute to do, but it can provide a general 
>> picture of the existing situation and the name of the person involved 
>> as referent. If your State is not listed in the table please add a 
>> column.
>> Kind regards,
>> Stefano
>>
>> Here the apple section of the 2015 report.
>>
>> A paper was submitted to the Journal of the American Pomological 
>> Society with the title â€œTime Required for Classifying Rootstock 
>> Vigor in Multi-location Rootstock Trialsâ€. This paper will likely 
>> appear in the January issue of the JAPS. Data from the 1994 and 2003 
>> apple rootstock trials were used to determine the time required to 
>> classify rootstock vigor. Very vigorous rootstocks, such as PiAu 
>> 56-83 and very low vigor rootstocks, such as M.27, were statistically 
>> different than standard rootstocks (M.26 and M.9 size class) by the 
>> fourth year after planting. Six or seven years were required to 
>> separate M.26 and M.9 NAKBT337, but rootstocks in the same size class 
>> (M.9 NAKBT337, G.935 and G.16) were not significantly different after 
>> 10 years. In future NC-140 apple rootstock trials, we should be able 
>> to accurately classify rootstock vigor after six or seven years at 
>> most locations.
>>
>> The 2010 NC-140 Apple Rootstock Trial includes 10 Budagovsky, 16 
>> Geneva, 3 Pillnitz, and 3 Malling (controls) rootstocks.  Fourteen 
>> locations use Honeycrisp as the scion cultivar, and 7 locations use 
>> Aztec Fuji.  All trees were supported to approximately 3.5 m and 
>> grown as Tall Spindles.  At the end of 5 growing seasons and across 
>> all locations, the largest Honeycrisp trees are on B.70-20-20.  This 
>> rootstock results in a tree much too vigorous for high-density 
>> planting.  The smallest trees are on B.71-7-11.  This rootstock 
>> results in a Honeycrisp tree which is too weak for commercial use.  
>> Yield efficiency did not vary greatly among rootstocks, except that 
>> the most vigorous (e.g., B.70-20-20) are very inefficient. Fruit size 
>> has been good for all Honeycrisp trees in this trial, except for 
>> those from trees on PiAu 9-90. In the Fuji trial, some trees were 
>> lost in the first season due to damage in the nursery, but since that 
>> time, trees have grown very well.  At the end of 5 growing seasons, 
>> largest Fuji trees were on B.70-20-20 and the smallest were on 
>> B.71-7-22.  As with Honeycrisp, both rootstocks would be consider 
>> unacceptable.  Generally, yield efficiency was negatively related to 
>> tree size.  Fruit size was relatively consistent, except fruit from 
>> trees on B.7-20-21 were much smaller than those from all others. 
>> Trees on PiAu 9-90 continue to have severe chlorosis in BC, a sickly 
>> appearance, and often small fruit size.
>>
>> The 2014 Apple rootstock planting was established in 15 locations in 
>> the United States (AL, ID, IN, MA, ME, MI, MN, GA, NJ, NY, PA, UT, 
>> VA, WA, WI), two in Canada, and one in Mexico (http://bit.ly/1zv3wCc 
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__bit.ly_1zv3wCc&d=DQMFaQ&c=C3yme8gMkxg_ihJNXS06ZyWk4EJm8LdrrvxQb-Je7sw&r=WSdMvazbTx70F-ycfKBKjz6uFh91wpOIh7NH46Li6ww&m=ED37jyYUnC2AUtRfkZotUbAmUvtF8eZeLoxQNEWHBP4&s=ctIdW22zWhkLIJeKFyFlb2RgLdGmxaU7f2Iao7k_njU&e=>). 
>> The trial consists of the following rootstocks: B.10, G.11, G.202, 
>> G.214, G.30, G.41, G.5890, G.935, G.969, M.26 EMLA, M.9 T337, V.1, 
>> V.5, V.6, V.7. The trial is being coordinated by John Cline who has 
>> also agreed to analyze the data. This trial has two cultivars: Aztec 
>> Fuji (AL, ID, GA, NJ, ON, PA, UT) and Honeycrisp (ID, IN, MA, ME, 
>> Mexico, MI, MN, NJ, NY, Ontario, PA, VA, WA, WI), planted to a 
>> â€˜tall spindleâ€™ systems at a 5 x 12 feet, and 4 x12 feet spacing, 
>> respectively. Trees are planted using a randomized block design with 
>> single trees serving as experimental units. Each site selected a 
>> pollinizer variety since some sites are very limited in adapted 
>> varieties. Trees were established in the spring of 2014. The trees 
>> were propagated by Willow Drive Nursery, WA. Data protocols have been 
>> established for 2014 and 2015. In 2014, the following data were 
>> recorded: 1) initial trunk diameter measured at planting 30cm above 
>> graft union; 2) number of side branches >10 cm at planting; 3) trunk 
>> circumference in the fall of 2014; 4) height of the graft union above 
>> soil; 5) tree status at the end of the 2014 growing season.
>>
>> For the 2015 Organic Apple Rootstock Trial, trees have been dug at 
>> Wafler Nursery. The trial will be planted at 14 locations and will 
>> evaluate 9 Geneva rootstocks and 1 Malling rootstock.  Modi is the 
>> cultivar and Liberty will be the pollenizer.  The design is five 
>> blocks in two-tree sets and will require 1/10 acre. Organic 
>> certification is optional, but orchard management must be organic.  
>> Land does not have to be organically certified prior to planting.
>>
>>
>>
>>
>> On 10/27/2016 12:40 PM, Fallahi, Esmaeil (efallahi at uidaho.edu 
>> <mailto:efallahi at uidaho.edu>) wrote:
>>> Hi Wes. We (Idaho) are in that project and will send the report 
>>> soon. Essie
>>>
>>> Sent from my iPhone
>>>
>>> On Oct 27, 2016, at 1:08 PM, Wesley R. Autio <autio at umass.edu 
>>> <mailto:autio at umass.edu>> wrote:
>>>
>>>> I need to know who is participating in the 2015 Organic Modi Apple 
>>>> Trial.  In 2015, I received data from IA, MA, MI, NJ, NM, 
>>>> NY-Ithaca, NY-Geneva, Vermont, and WI.  My initial list suggested 
>>>> that California, Chihuahua, Colorado, Idaho and Nova Scotia were 
>>>> also involved, but I have not seen any data.  For the latter, 
>>>> please confirm whether or not you are part of this project.  If I 
>>>> don't hear from you, I will assume that you are not.
>>>>
>>>>
>>>> -- 
>>>> ________________________________________________________________________
>>>> Wesley R. Autio
>>>> Professor & Director, Stockbridge School of Agriculture
>>>> 205 Paige Laboratory
>>>> 161 Holdsworth Way
>>>> University of Massachusetts Amherst
>>>> Amherst, MA 01003-9286
>>>>
>>>> tel 413-545-2963   fax 413-577-0242   cell 413-348-8557
>>>>
>>>> http://stockbridge.cns.umass.edu 
>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__stockbridge.cns.umass.edu&d=DQMFAg&c=C3yme8gMkxg_ihJNXS06ZyWk4EJm8LdrrvxQb-Je7sw&r=WSdMvazbTx70F-ycfKBKjz6uFh91wpOIh7NH46Li6ww&m=6A6rsvinPNfZ1b4nuYxZEKxiVvwtqosJr-oXdWuqDH4&s=pakfc0gH-Jm-gVrwvR2Koi-igf2o4VT07gaDkWVWQLA&e=>
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>>
>> -- 
>> Stefano Musacchi
>> Endowed Chair
>> Associate Professor
>> Tree Fruit Physiology and Management
>> Department of Horticulture
>>
>> Tree Fruit Research and Extension Center
>> 1100 N. Western Avenue
>> Wenatchee WA 98801-1230
>> Phone 509-663-8181 ext 236
>> Fax 509-662-8714
>> email:stefano.musacchi at wsu.edu <mailto:stefano.musacchi at wsu.edu>
>> www.musacchi-orchardmanagement.com 
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.musacchi-2Dorchardmanagement.com_&d=DQMFaQ&c=C3yme8gMkxg_ihJNXS06ZyWk4EJm8LdrrvxQb-Je7sw&r=WSdMvazbTx70F-ycfKBKjz6uFh91wpOIh7NH46Li6ww&m=ED37jyYUnC2AUtRfkZotUbAmUvtF8eZeLoxQNEWHBP4&s=Qd0ausV4g5tKrihusJaJdY-we5ugE2DCXHQCC8iXqTI&e=>
>> <trails summary.xlsx><apple rootstocks.xlsx><Apple Subcommittee 
>> Plans16 1.docx>_______________________________________________
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>

-- 
Stefano Musacchi
Endowed Chair
Associate Professor
Tree Fruit Physiology and Management
Department of Horticulture

Tree Fruit Research and Extension Center
1100 N. Western Avenue
Wenatchee WA 98801-1230
Phone 509-663-8181 ext 236
Fax 509-662-8714
email: stefano.musacchi at wsu.edu
www.musacchi-orchardmanagement.com

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