Artículos científicos
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Is delay in application a factor that reduces efficacy of 1-Methylcyclopropene response in pears?
(ISHS, 2012-04)‘Williams’ pear (Pyrus communis L.) is the most important cultivar grown in Alto Valle of Rio Negro, Argentine. 1-methylcyclopropene (1-MCP) proved to be highly effective in inhibiting ethylene action and maintaining ... -
Current DPA and ethoxyquin situation and alternatives to superficial scald control in apples and pears
(ISHS, 2012-04)Regulations governing the use of chemicals to control diseases and disorders of apples and pears in storage are becoming increasingly stringent, especially in European Union (EU) countries. The European Commission (EC) is ... -
The role of endogenous antioxidants in scald development of 'Beurré D'Anjou' pears under different storage systems
(ISHS, 2018-03)The role of endogenous antioxidants in scald development of 'Beurré D'Anjou' pears stored in regular air (control), low oxygen (LO) and treated with 1-methylcyclopropene (1-MCP) was studied. Superficial scald, ethylene ... -
Effects of soil management on yield, growth and soil fertility in an organic apple orchard
(ISHS, 2006-10)The objective of this work was to evaluate the effects of soil management on yield, growth and soil fertility in an organic apple orchard cv. Royal Gala/EM 26 planted in 1994 at 4 x 2 m. In 1999, treatments applied to the ... -
Foliar application of urea during bloom increases fruit size in 'Williams' pears
(ISHS, 2008-10)In preliminary screening of materials for potential bloom-thinning of ‘Williams’ pears in Oregon, USA and Rio Negro, Argentina, treatment with urea in 5% (w/w) or 7.5% solutions was identified as effective in enhancing ... -
Recent situation of the pear industry in South America
(ISHS, 2008-10)South America is overall a net exporter of pears due to the large contributions of Argentina and Chile. Brazil, on the other hand, is a big pear importer. The total production for the region is 900,000 tons on approximately ... -
Fruit drop and bloom return according to time of metyamitron application for chemical thinning in 'Red Chief' apple
(ISHS, 2022-06)Early removal of some of the fruits in apple trees improves the quality of remaining fruits at harvest and ensures adequate bloom return. An excess of fruits inhibits the flower bud induction in apple trees, a process that ... -
New planting systems to increase apple orchard profitability in Argentina: preliminary results
(ISHS, 2022-09)Apples and pears are the main fruit production of the north Patagonian valleys. Many training systems suitable to be mechanized (pruning, thinning, use of platforms) are used in different fruit growing areas to improve ... -
Metamitron application could replace carbaryl treatment for chemical thinning in 'Red Delicious' apple
(ISHS, 2022-09)Carbaryl is Argentina’s most used thinning compound for ‘Red Delicious’ apple. Due to environmental concerns about its application, there is a need to find alternatives for chemical thinning. The objective of this work was ... -
Effects of Retain™ on fruit maturity and fruit set of pear cultivars Williams and Packham's Triumph
(ISHS, 2002-12)ReTain™ (Aminoethoxyvinylglycine: AVG), a newly registered commercial product, is an ethylene biosynthesis inhibitor that delayed fruit maturation if applied before harvest and increased fruit set if applied after bloom ... -
Misleading zinc deficiency diagnose in pome fruit and inappropriate use of foliar zinc sprays
(ISHS, 2002-11-30)Many researchers and field managers consider Zn the most limiting micronutrient for tree fruit production. A threshold concentration of 18-20 ppm in summer shoot leaves is considered adequate in most world fruit growing ... -
Sensory evaluation of pears: a useful tool to detect changes in eating quality during ripening
(ISHS, 2011-10)Since pears are very perishable once they are ripe, they are generally purchased unripe and require a few days at room temperature to reach maturity. Consumers complain that pears advance from unripe to overripe in a very ... -
Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
(ISHS, 2011-10)The Alto Valle of Río Negro is the most important pear production region of Argentina and 50% of this production is of the ‘Williams’ cultivar. The aim of this study was to characterize maturation of ‘Williams’ pear according ... -
Non-destructive index to characterize the maturity of 'Williams' pears grown in Argentina
(ISHS, 2011-10)Determining the maturity at harvest is crucial for storage and marketing of pears. In recent years non-destructive techniques were evaluated. In this study we used spectroscopy in the Vis-NIR range, and established the AD ... -
Ripening induction of 'Packham's Triumph' pears treated wih 1-Methylcyclopropene (1-MCP)
(ISHS, 2011-10)Commercial use of SmartFresh® in pears requires applying a concentration of 1-methylcyclopropene (1-MCP) sufficient to delay the maturity process, but which still allows the proper ripening of the fruit after storage. The ... -
Post-harvest performance of 'Abate Fetel' pears grown in Argentina in relation to harvest time
(ISHS, 2011-10)The area planted with ‘Abate Fetel’ pears has increased in Argentina in recent years, and the trend suggests it will continue to increase in the near future. Because the information available for harvest and postharvest ... -
Developing a sensory descriptive panel for pear quality evaluation
(ISHS, 2011-10)Argentina is one of the main pear exporters in the world, being recognized in the market for the quality of its emblematic cultivar ‘Williams Bon Chretien’, better known as ‘Bartlett’. Rapid changes occurring in consumer ... -
Factors affecting sensitivity of 'Abate Fetel' pears to friction discoloration
(ISHS, 2011-10)Friction discoloration (FD) is one of the main postharvest problems of ‘Abate Fetel’ pears. During 2009 and 2010, the effect of maturity, 1-methylcyclopropene (1-MCP), temperature and degree of dehydration of fruits on ... -
Effects of volume rate and spray pressure of an air-assisted sprayer on pesticide distribution and drift on pear prees
(ISHS, 2011-10)Pear orchards in Argentina are predominantly sprayed with an axial fan airblast sprayer. In this system, the forced air jet transports the spray droplets to the plant surface. The droplets are produced by an hydraulic ... -
Sensory evaluation of principal pear cultivars from North Patagonia, Argentina
(ISHS, 2011-10)Even though Argentina is recognized in the international market for the quality of its emblematic cultivar ‘Bartlett’, other cultivars, commercially well ranked, are grown in the northern Patagonia area whose sensory quality ...