Fresh News From Sun World®, June 2004

   ...for grower-marketer members of the Sun World Fruit Alliance

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Sun World Technical Support; Does it Work?

 

The following is adapted from an article that examines the Sun World Technical Support Program and highlights success stories of the program.

Click here to read the article in its entirety (pdf format).

Sugraone (SUPERIOR SEEDLESS®) had become known in South Africa and in many other parts of the world as a variety with low and inconsistent yields. And the high percentage of small and non-uniform berries, that demanded high labor inputs to trim out, contributed to an already doubtful reputation. In fact had it not been for its earliness, large berry size, crispy texture, good eating and storage qualities, this variety could have been buried long ago.

Sun World, with decades of production experience, realized that prospective producers should have access to production technology required to grow this variety successfully. To turn the negative impressions of the Sugraone around, Sun World needed to expose licensees around the world to optimal production practices to achieve profitable yields of good and consistent quality that is typical for this variety.

In 1999 Sun World instituted a Sugraone advisory program in South Africa, first by visits to Sugraone growers by its own viticulturists Kevin Andrew and David Fenn, and later by contracted consultants like Hovav Weksler, Claus Orth and Herbert Hattingh to regularly advise Sugraone growers on best production practices.

Results

 During this five-year period from 1999 to 2003, average national exportable production increased 64% from 2,200 cartons (10 tons) per hectare to 3,600 cartons (16 tons) per hectare (4,5 kg equivalent). The top third Sugraone producers today obtain an average production of 4,200 cartons (19 tons) per hectare and individual performances are in excess of 6,000 cartons (27 tons) per hectare on an annual basis.

Advisory programs in other countries

In addition to South Africa and Namibia, Sun World’s advisory consultants are continually exposed to Sugraone production in various parts of the world, including Brazil, Argentina, Morocco, Egypt, Saudi Arabia, Israel, Spain, Italy, Australia and the United States. Periodically, the information and experience is pooled into a Sugraone Production Manual that details best production practices as well as recommended steps for establishing a new Sugraone vineyard. These guidelines are available to interested licensed Sugraone producers.

Technical Support Enquiries

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Report: Sun World Early-Season Plums

-Terry Bacon, Stone Fruit Breeder

Early-season is our specialty and we do a good job of combining earliness with size in our fruit breeding programs. For the grower/marketer, that means there are terrific opportunities with early plums. This year is a good example, with average plum sizes being down in California, early-season prices have been above-average for larger-sized fruit. Suplumtwentythree and Suplumtwentyseven were standouts for the Red Beaut-Black Beaut window this year (see Seasonal Shots for Weeks 20-21). Likewise Suplumtwentyeight and Suplumthirtyfive have performed well in the Santa Rosa-Black Amber window this year (see Seasonal Shots for Weeks 22-23).


Mansour Assumes Licensing Duties for Chile & France

 

Andrew MansourAndrew Mansour, a four-year member of Sun World's licensing staff, has been named Regional Licensing Manager for Chile and France. He will continue to be based at the Company's Coachella, California office and assumes new expanded responsibilities for all of Sun World's propagation, production and marketing activities in Chile and France. Mansour also assists management with various special licensing projects.

"These two countries require special, focused attention. With Andrew devoting much of his energy toward developing new licensed Sun World fruit production in both France and Chile, I know we'll provide even better service and growth opportunities to our licensees," Senior Vice President Licensing & Corporate Development David Marguleas said.

 

Report: 2004 Grape Crossing Season and Future Goals of the Grape Program.
-Michael Striem, Grape Breeder

 

We continue to produce new table grape offspring. Annually we make crosses between chosen cultivars and selections aimed at developing uniquely designed, improved grape selections. We are mainly looking at the very early and very late ends of the season, but will also challenge performance of existing selections and known varieties. Sun World’s reputation of nice looking grapes with uniform large and firm berries will be kept. We do, though, continuously add additional characteristics such as special shape, aromatic flavors and resistances, to our germplasm.

This year in the third week of April, we were already Gary Lott (left) discussing crosses with Michael Striem at the peak of our crossing season, when many of our grapevines flower. Orchestrated by Gary Lott (in photo on left), Research Associate/ Vineyard Manager, the 2004-program aims to make about 150 different cross combinations. The expected seedling yield of these should reach more than 18,000 seedlings.

We were rushed into this crossing season about two weeks earlier than usual due to unusually high temperatures; we were just done planting seedlings from the 2003 crossing season. In each of the past three years we produced about 18,500 seedlings or a total of more than 55,000 potential cultivars. From these vines we have already made many selections  which we are evaluating for their commercial potential as new cultivars. 

We have recently invested many efforts to improve our breeding program to make it more efficient. With focus on quality, we have:

  • Introduced 6-week post-harvest cold-storage evaluation to many selections.

  • Digital imaging of selections and cultivars, linked to the breeding database.

  • Increased the cultivar germplasm availability to be used in breeding.

  • Improve our data collection and database management by converting to a modern SQL server platform,

Working closely with our Cultivar Development Specialist, Guy McGhie, we hope to be able to present to you new selections every year. Stay tuned


California Stone Fruit Size Standards Explained

 

For those of you unfamiliar with the California fruit sizing standards, Sun World R&D has a handy conversion chart that includes sizing standards for plums, peaches, nectarines and apricots, including tray-packed and loose-filled standards.

Click here to download chart (pdf format)