Kearney Agricultural Research and Extension Center
University of California
Kearney Agricultural Research and Extension Center

Central Valley Postharvest Newsletter

Archive

Volume 21 - 2012

March 2012

  • Tribute to F. Gordon Mitchell
  • F. Gordon Mitchell - 1924-2012
  • 20 Year Milestone Reached for CVPN
  • Fruit Freezing Injury
  • Field Inking or Black Staining
  • Skin Burning

Volume 20 - 2011

February 2011

  • Skin burning
  • Field inking or black staining

August 2011

  • Visit the Fruit and Nut Center website
  • Newly Designed Postharvest Technology Center website provides useful information

October 2011

  • Information about California fresh fig research at UC Davis
  • Most useful Internet sites for postharvest information

Volume 19 - 2010

June 2010

  • Instruments for measuring fruit and vegetable environment
  • Postharvest abstracts updates
    • Cherry
    • Peach
    • Nectarine
    • Plum

July 2010

  • Recommendations to reduce field inking and skin burning development in peach and nectarine fruit
  • Assuring proper temperature of California table crapes at arrival in export markets

September 2010

  • Evaluation of the effect of different MAP box liners on the quality and shelf life of ‘Friar’ plums
  • Evaluation of a kiwifruit non-destructive firmness sensor
  • Kiwifruit abstracts –
    • Evaluation of a non-destructive dry matter sensor for kiwifruit
    • Postharvest spplication of 1-methylcyclopropene (1-MCP) extends shelf life of "Hayward? kiwifruit
    • Kiwifruit meeting in Faenza

October 2010

  • Abstracts from kiwifruit meeting in Italy
    • Cultural management
    • Plant protection
    • Storage and fruit quality

Volume 18 - 2009

April 2009

  • Updating peach, nectarine and plum inking (skin discoloration) development information
  • Ethephon to eliminate first crop figs
  • Reducing losses of preconditioned fruit programs

August 2009

  • Update on white flesh peach and nectarine skin burning discoloration

September 2009

  • The importance of adjusting your water-chlorine pH during your brush-washing operation for the San Joaquin Valley stone fruit industry

October 2009

  • 16th Annual Fruit Ripening & Ethylene Management Workshop
  • Ripening guidelines for kiwifruit receivers
  • Update on optimum procedures for ripening kiwifruit
  • New kiwifruit dry weight protocol

Volume 17 - 2008

February 2008

  • Influence of box type on table grape commercial storage quality performance – 2007 Season
  • Resistance management – A necessity in fungicide usage
  • New kiwifruit dry weight protocol

May 2008

  • Establishing a quality control system
  • Measurement of pH and titratable acidity
  • Measurement of fruit firmness
  • Measurement of soluble solids content
  • Effects of controlled atmosphere on plums
  • Effects of controlled atmosphere on nectarines
  • Stone fruit internal breakdown evaluation

September 2008

  • Optimum temperature conditions for produce handlers

Volume 16 - 2007

January 2007

  • Tree fruit and table grape postharvest technology day – February 15
  • Good agricultural practices reduce microbial contamination

May 2007

  • Update on mentor 45WP – A “new tool” for postharvest management of sour rot of stone fruit in the 2007 season

July 2007

  • Are we bruising our fruit?
  • Can we reduce potential abrasion inking damage during the harvesting operation?
  • Can we reduce potential abrasion inking damage during transportation to the
    packinghouse?
  • Peach and nectarine corking
  • Measurement of fruit firmness
  • Most useful Internet sites for postharvest information

October 2007

  • Preliminary kiwifruit dry weight protocol
  • Developing a maturity index for early harvested kiwifruit – 1998, 1999 & 1999-
    2000 research report
  • Evaluating dry weight sensors to segregate kiwifruit according to consumer
    acceptance – 2006-2007 research report

Volume 15 - 2006

April 2006

  • Peach market life – Should we apply this concept?

June 2006

  • Sour rot control
  • Hydrocooler water sanitation in the San Joaquin Valley stone fruit
    industry
  • The top 10 tips for decay control

July 2006

  • Health benefits – Exciting early results for kiwifruit
  • New opportunities for kiwifruit in postharvest technologies
  • SmartFreshSM workshop
  • Evaluation of postharvest table grape storage quality for different cultivars packed in three box types under commercial sonditions – 2005 season
  • Table grape packaging influences ‘Flame Seedless’ and ‘Redglobe’ storage quality (1999 Season)

August 2006

  • KAC fresh fruit postharvest handling day – February 15, 2007
  • Scholar’s mentor gets an emergency registration to help manage sour rot of stone fruit in California
  • Fruit blemishes (corking and spotting)

Volume 14 - 2005

April 2005

  • Evaluation of Ozone Gas Penetration Through Citrus Commercial Packages and Control of Green and Blue Molds Sporulation During Cold Storage
  • Evaluation of the effect of ozone exposure on decay development and fruit physiological behavior
  • Abstracts
    • Dr. Crisosto’s ozone publications

May 2005

  • Increasing kiwifruit Size! Prestige (CPPU) approved for kiwifruit
  • Increasing ‘Blackamber’ plum consumer acceptance
  • Olive Oil Facts: An interview with Paul Vossen
  • Top 10 factors in producing quality olive oil
  • How to handle and store your olive oil

June 2005

  • Kiwifruit applied tesearch program at the Kearney Agricultural Center
  • Publication summary – Kiwifruit applied research

August 2005

  • Handling preripened California plums

Volume 13 - 2004

March 2004

  • Poor sanitation of fruit and new handling practices may increase sour rot incidence of peach, plum, and nectarine
  • Abstracts (‘Princess’ Berry Browning + four others)
  • Establishing a quality control system
  • Measurement of pH and titratable acidity
  • Measurement of fruit firmness
  • Measurement of soluble solids content
  • Starch-iodine test

August 2004

  • Handling preconditioned tree fruit at the retail distribution centers
  • Handling preconditioned tree fruit at retail stores
  • Postharvest technological treatments of pomegranate and preparation of derived products
  • Biochemical basis of superficial scald on ‘Wonderful’ pomegranates
  • Abstracts from the 5th International Postharvest Symposium, Verona, Italy, June 6-11, 2004

October 2004

  • Elevate registered on kiwifruit for management of gray mold caused by botrytis cinerea
  • Abstracts from the 5th International Postharvest Symposium, Verona, Italy, June 6-11, 2004

Volume 12 - 2003

April 2003

  • Strategies for postharvest decay management of sweet cherries in 2003
  • Consumer acceptance of ‘Brooks’ and ‘Bing’ cherries is mainly dependent on fruit SSC and visual skin color
  • Evaluation of different box liners for the California ‘Bing’ cherry industry
  • Testing the reliability of skin color as an indicator of quality for early season ‘Brooks’ (Prunus avium L.) cherry

May 2003

  • Decay outbreaks – Sour rot
  • Stone fruit decay challenges in the spring season of 2003 - Top 10 tips for decay control
  • Handling preconditioned tree fruit at the retail distribution centers
  • Handling preconditioned tree fruit at retail stores
  • Developing critical pitter thresholds for canning peaches using the nondestructive Sinclair firmness sensor

December 2003

  • Elevate to annihilate gray mold of kiwifruit – An emergency registration for a pre- or postharvest application on kiwifruit
  • Preconditioning guidelines for kiwifruit shippers
  • Optimum procedures for ripening kiwifruit

Volume 11 - 2002

May 2000

  • Tips to increase peach consumption
  • Overview – preconditioning/pre -ripening
  • Update on pre- & postharvest fungicide treatments

June 2001

  • Peach and nectarine inking update in California
  • Evaluation of different box liners for the California ‘Bing’ cherry industry
  • Evaluation of ozone gas penetration
  • Through citrus commercial packages

September 2002

  • Evaluation of ozone gas penetration through citrus commercial packages and control of green and blue molds sporulation during cold storage
  • Table grape cooling

Volume 10 - 2001

June 2001

  • Establishing a quality control system
  • Preconditioning/pre -ripening tips for peaches, plums and nectarines
  • 2001 – inking outbreak evaluations
  • Section 18 for the “reduced risk” fungicide scholar 50WP approved again for 2001 for postharvest management of stone fruit decays

September 2001

  • Container fumigation of table grapes
  • Ozone and table grapes/stone fruit
  • Ozone and citrus
  • SO2 low emission rates to control botrytis
  • CO2 effects on ‘Thompson Seedless’ table grapes
  • CO2 effects on ‘Redglobe’ table grapes
  • Pomegranate postharvest fungicide update
  • Postharvest abstracts

November 2001

  • Table grape packaging influences ‘Flame Seedless’ and ‘Redglobe’ storage quality
  • Update on Redglobe breakdown project

Volume 9 - 2000

May 2000

  • Optimum procedures for ripening stone fruit
  • Reducing cherry pitting incidence
  • CTFA abstracts:
    • Fundamental studies on stone fruit internal breakdown.
    • Assessment of postharvest and retail handling practices on microbial food safety risk reduction
    • Improving the ripening protocol for warehouses and produce stores
    • Management and epidemiology of pre- and postharvest brown rot and other diseases of fresh market stone fruit crops

June 2000

  • Understanding the role of ethylene in the tree fruit industry
  • Ability of the OxtomCav ozone generator to reduce ethylene levels in an export container
  • Optimum procedures for ripening kiwifruit.
  • Abstracts
    • The role of ethylene in development of storage disorders in nectarine and plum
    • Understanding the tole of ethylene in peach cold storage life
    • Thermal postharvest treatments for improving pomegranate quality and shelf life

October 2000

  • Reducing ‘Thompson Seedless’ table brape bruising
  • Table grape bottom pad rvaluation
  • Cluster bag design and position within the box influences table grape quality
  • Field box temperature varies according to box material
  • Temperature differences between plastic containers when placed in full sun
  • Preconditioning guidelines for kiwifruit shippers

Volume 8 - 1999

May 1999

  • Preliminary studies on white flesh peach and nectarine cultivars
  • Improving ripening for retailers
  • Fundamental studies on stone fruit internal breakdown
  • Pomology weather services on the WWW
  • Prediction of brown rot and evaluation of chemicals to control brown rot
  • Tolerances for pesticides
  • Apricot produce facts
  • Sweet cherry produce facts
  • Ways to reduce I.B. incidence
  • Influence of temperature on decay

August 1999

  • Good news from Taiwan
  • Stone fruit decay
  • Decay outbreaks - sour rot
  • Container SO2 fumigation
  • Peach and nectarine produce facts
  • Plum produce facts
  • Grape produce facts

October 1999

  • Kiwifruit postharvest guidelines
  • International kiwifruit update

Volume 7 - 1998

July 1998

  • New "silver bullet": Medallion
  • Precooling before loading
  • Export container loading guidelines
  • Centerline loading of highway trailers
  • High quality stone fruit starts on the tree

August 1998

  • Tips to reduce decay incidence for the 1998 stone fruit season

Volume 6 - 1997

September 1997

  • Kiwifruit guidelines
  • Grape article
  • CTFA
  • Abstracts

Volume 5 - 1996

April 1996

  • Joseph M. Ogawa
  • Ripening protocol for stone fruit
  • Market life for new stone fruit cultivars
  • Peach and nectarine skin discoloration
  • Fruit freezing injury
  • Fortune plum ripening
  • Maturity index for new cherry cultivars
  • Developing critical bruising threshold for stone fruit
  • Rovral situation update
  • Postharvest fungicides for control of brown and rhizopus rots
  • Fruit inspection lighting
  • Hydrocooler water sanitation

August 1996

  • Precooling before loading
  • Export of California grapes
  • Export of California plum
  • Control of postharvest brown rot of stone fruit
  • Control of postharvest gray mold on table grapes
  • Keep stone fruit cold in tTransport
  • Ripening guidelines for kiwifruit handlers
  • Future postharvest events

Volume 4 - 1995

March 1994

  • Postharvest brown rot control
  • Evaluation of skin color as a maturity index for cherry
  • Moldy core in 'Fuji'
  • What's new with apples?
  • Preconditioned kiwifruit retail handling
  • 'Fuyu' persimmon storage recommendations
  • High nitrogen reduces fruit quality
  • Effect of harvesting equipment in bruising
  • Fuji tour
  • Reducing cherry pitting
  • Stonefruit postharvest research update

July 1995

  • Reducing inking of peaches and nectarines
  • Preconditioning kiwifruit
  • Stone fruit internal breakdown
  • Internal browning of Fuji
  • Pesticide law
  • Predicting kiwifruit botrytis
  • When to harvest apples
  • Troubleshooting hydrocoolers
  • Precooling before loading

Volume 3 - 1994

March 1994

  • Postharvest brown rot control
  • Evaluation of skin color as a maturity index for cherry
  • Moldy core in 'Fuji'
  • What's new with apples?
  • Preconditioned kiwifruit retail handling
  • 'Fuyu' persimmon storage recommendations
  • High nitrogen reduces fruit quality
  • Effect of harvesting equipment in bruising
  • Fuji tour
  • Reducing cherry pitting
  • Stonefruit postharvest research update

August 1994

  • Ripening guidelines for kiwifruit handlers
  • Tips to reduce internal breakdown incidence in stone fruit
  • Delaying harvest to produce a high quality stone fruit
  • Maintaining postharvest quality of persimmons
  • How to avoid internal browning of and Chinese pears
  • Pomegranate storage temperature
  • Apple russeting
  • Skin discoloration on peach and nectarine fruit
  • Market life of stone fruit

Volume 2 - 1993

February 1993

  • Small size study results
  • Internal breakdown
  • Postharvest problems of cherries
  • Bitter pit in spples
  • Preharvest factors on quality
  • Dr. Elizabeth J. Mitcham
  • Reducing packinghouse cherry damage
  • Precooling before loading

July 1993

  • New postharvest research center at Kearney
  • Should we use plastic bins?
  • Tips to reduce bruising during apple harvesting
  • Export of California grapes
  • Export of California plums
  • Potential postharvest life and ripening period on stone fruit
  • Lighting for fruit and vegetable sorting
  • The importance of picking apples at the optimum maturity
  • Significance of mucor decay on apples

Volume 1 - 1992

May 1992

  • Dicloran in the U.S.
  • Temperature Management
  • Stonefruit field operations

September 1992

  • Maturity studies on Asian pear
  • Fruit color maturity index for Asian pear
  • Tips for long term storage of kiwifruit
  • Maturity and storage of new apple cultivars
  • Controlling postharvest diseases of tree fruits
  • Conditioning Granny Smith apples for market
  • Granny Smith apple maturity studies
  • Improved sulfur dioxide fumigation of table grapes
  • Recent developments in the postharvest storage of California citrus
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