Friday, January 22, 2016
Yield data from 2015 cultivar trials
The 2015 yield data for the nine cultivars in this trial is presented in the table at left. The yield per acre values were calculated from the per tree data based the current tree spacing. By far, scab-resistant Major produced the largest crop among these 9 cultivars. Yields from Colby, Dooley, Giles, Hirschi, and Peruque were terrible. The heavy scab pressure we experience in 2015 negatively impacted nut production from these 5 cultivars.
thinned the nut crop on our Lakota trees and still produced an excellent crop. Yields from Giles and Chetopa trees were disappointing, producing less than 1/3 the crop as compared to other cultivars in this trial.
In reviewing the results of all our cultivar trials make sure to remember that one year's data should not be used to plan a new massive grafting campaign. I've seen some of these cultivars long enough to know to avoid them (ie. alternate bearing Osage and USDA 64-6-182), while others still make me worry about their late ripening dates (Caddo, Oconee).