Issue link: https://read.dmtmag.com/i/314286
32 JUNE 2014 GOOD FRUIT GROWER www.goodfruit.com Effects of Using Nutri-Cal with Nutri-K on Cherries Effects of Using Nutri-Cal with Nutri-K on Cherries s Ask For s Ask For s Ask For ® ® C.S.I. CHEMICAL CORP. 800-247-2480 • www.nutri-cal.com 10980 Hubbell Ave., Bondurant, IA 50035 C.S.I. CHEMICAL CORP. 800-247-2480 • www.nutri-cal.com 10980 Hubbell Ave., Bondurant, IA 50035 PACIFIC NORTHWEST Walt Grigg: 509-952-7558 PACIFIC NORTHWEST Walt Grigg: 509-952-7558 Application Rate of 2 Quarts Nutri-Cal & 1 Quart Nutri-K Applied 6 times beginning at Petal Fall 2011 Application Dates: May 23, May 27, June 3, June 11, June 19, June 24 Ron Britt & Associates, Yakima, WA 2012 20 56.7 80 44.2 PREMIUM MEDIUM % MARKETABLE GRADES OF BING CHERRIES 0 10 20 30 40 50 60 70 80 Nutri-Cal 36% Increase in Premium Grade 8.5-9! 17.00% 21.25% BRIX QUALITY OF BING CHERRIES 0 5 10 15 20 25 366.28 g 369.50 g GRAMS FORCE TO SQUEEZE SKIN 1mm 364 365 366 367 368 369 370 FIRMNESS EVALUATION OF BING CHERRIES COMBINED MAHOGANY & DARK MAHOGANY % PREMIUM COLORS OF BING CHERRIES 89.25 95.75 75 80 85 90 95 100 Consider for your next planting: • BRUCE PONDER • SUSAN WILKINSON • ADAM WEIL • DAVE WEIL 503-538-2131 • FAX: 503-538-7616 info@treeconnect.com www.treeconnect.com BENEFITS: • Disease tolerant • Cold hardy • Adapts well to all cherry-growing districts • Forms flower buds and comes into bearing quicker than Mazzard with a better distribution of flower buds Roots available for SPRING DELIVERY Call Tree Connection: 800-421-4001 Dwarfing Cherry Rootstock Krymsk ® 5 Krymsk ® 6 [cv. VSL-2, USPP 15,723] [cv. LC-52, USPP 16,114] "Krymsk ® 5 and Krymsk ® 6 cherry rootstocks have proven to be the best rootstock for our orchards. They are yield efficient, grow and adapt well, and are cold hardy." —John Morton The Dalles, Oregon AVAILABILITY of Geneva rootstocks A ll dwarf rootstocks are in short supply. Geneva rootstocks in particular have a long waiting list at some nurseries. • G.11 is the most widely available Geneva rootstock. It is not suitable for replacement trees, nor should it be considered replant tolerant in Washington State. • G.41 is the most widely available replant-tolerant Geneva apple rootstock. There is some con- cern about weak bud unions at the nursery and during orchard planting, but it has not been a problem after establishment, other than the broken union from trellis collapse. Risk of union breakage appears to increase as the size of the nursery stock increases. • G.935 production is increasing but not likely to increase as rapidly as G.41. G.935 has also had some union breakage but, as with G.41, cultural practices in the nursery may be the leading issue. Its only flaw is lack of woolly apple aphid resistance. • G.214 is being planted spring of 2014, with some liner availability in 2015. This genotype has exceptional replant tolerance and productivity. It tends to grow a more flat and spreading tree form. • G.210 and G.890 are new releases that do not appear to have as many nurseries licensed to produce them as G.41. Both of these rootstocks may propagate more easily than G.41. G.210 may sucker more than some growers want to manage, but the replant and propagation traits are good enough to encourage trial planting and consideration for wider use. G.210 and G.890 may allow the establishment of two or three leaders per tree stump at 20 to 30 inches between leaders down the row, need- ing fewer stumps per row. There is some risk of needing to manage excess vigor with these more vigorous, replant-tolerant rootstocks. Historically in replant-challenged sites, this is not a risk but an opportunity. These rootstocks do not have the number of trials supporting the data as G.41, G.935 or G.214, but the performance in replant sites make them very worthy candidates for grower trial, especially for growers interested in multileader trees at sites that can not be fumigated. • G.30 is a very high-performing rootstock in the orchard but somewhat miserable to manage in the nursery. Most of the high-volume liner nurseries do not produce G.30, and several finished-tree nurseries avoid it. • G.969 will be trialed for the first time in Washington State in 2015. Its vigor class has been moved smaller over the last three years by New York researchers. Currently it resides in the M.26 class, but may slide towards the large M.9 category in Washington State. G.969 is in commercial production, and roots are planted to be budded in 2014. • G.202 and G.16 should be avoided. G.16 has virus sensitivity issues, and G.202 is available only because it prop- agates easily. It does not have productivity nor replant reliability in Washington State. They may be available, but should be used only if desperate for fire blight resistance. Production and thus the availability of all the Geneva rootstocks is rapidly changing. Checking with the various licensees regularly will keep interested growers in the loop on availability. The website http://www.cctec.cornell.edu/plants/index-test.php#apple-rootstocks has a list of Geneva rootstocks in commercial production. When a rootstock is selected from the website list, it will show the licensed rootstock liner nurseries for the rootstock. These lists were not complete as the magazine went to press, but were expected to be updated soon. —T. Auvil