USE OF SOIL-AND FOLIAR-APPLIED CALCIUM CHLORIDE TO REDUCE PEAR SUSCEPTIBILITY TO BROWN SPOT (<i>STEMPHYLIUM VESICARIUM</i>)

Toselli, Moreno; Sorrenti, Giovambattista; Quartieri, Maurizio; Baldi, Elena; Marcolini, Graziella; Solieri, D.; Marangoni, Bruno

doi:10.1080/01904167.2012.706678

Cited by 4 publications

(3 citation statements)

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“…Side rot (Phialophora malorum) in 'Bosc' was reduce applying three mid-summer sprays of 3.6 and 6 g Ca L -1 as CaCl 2 (SUGAR et al, 1992). Considering the low mobility of Ca and the little permeability of the fruit cuticle during most phenological stages, foliar and soil applications of Ca fertilizers often show a low effectiveness in promoting Ca accumulation in fruit in both controlled and field studies on calcareous soils in Northern Italy (TOSELLI et al, 2012). Under such environmental conditions, largest effects were obtained with early (bloom) soil applications.…”

Section: Calciummentioning

confidence: 99%

“…The Ca pectate was found to range between 25% in untreated trees to 30% in soil fertilized In fruits of 'Abbè Fetel' the Ca pectate (TOSELLI et al, 2012). On the other hand, high Ca concentration inhibits the activity of polygalacturonase and delays ripening of fruits (MARSCHNER, 1995).…”

Section: Calciummentioning

confidence: 99%

“…In 'Doyenne du Comice', a negative correlation was found between Ca fruit content and fruit susceptibility to superficial scald (MARCELLE, 1995). It has been reported that storage disorders such as internal breakdown of 'Passacrassane', senescent breakdown of 'Abbè Fetel' and 'Bosc' (GORINI, 1988), corkspot of 'D'Anjou' (CURTIS et al, 1990) and 'Alexander Lucas' (TOMALA; TRZAK, 1994).pre-and postharvest diseases such as brown spot (Stemphylium vesicarium), particularly frequent in 'Abbé Fetel' and 'Conference' can be reduced through increased fruit Ca concentration up to a threshold of 1000 mg Ca kg -1 (TOSELLI et al, 2012). Side rot (Phialophora malorum) in 'Bosc' was reduce applying three mid-summer sprays of 3.6 and 6 g Ca L -1 as CaCl 2 (SUGAR et al, 1992).…”

Section: Calciummentioning

confidence: 99%

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The Role of Mineral Nutrition on Yields and Fruit Quality in Grapevine, Pear and Apple

et al. 2015

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-Fertilization of temperate fruit trees, such as grapevine (Vitis spp.), apple (Malus domestica), and pear (Pyrus communis) is an important tool to achive maximum yield and fruit quality. Fertilizers are provided when soil fertility does not allow trees to express their genetic potential, and time and rate of application should be scheduled to promote fruit quality. Grapevine berries, must and wine quality are affected principally by N, that regulate the synthesis of some important compounds, such as anthocyanins, which are responsible for coloring of the must and the wine. Fermenation of the must may stop in grapes with low concentration of N because N is requested in high amount by yeasts. An N excess may increase the pulp to peel ratio, diluting the concentration of anthocyanins and promoting the migration of anthocyanins from berries to the growing plant organs; a decrease of grape juice soluble solid concentration is also expected because of an increase in vegetative growth. Potassium is also important for wine quality contributing to adequate berry maturation, concentration of sugars, synthesis of phenols and the regulation of pH and acidity. In apple and pear, Ca and K are important for fruit quality and storage. Potassium is the most important component of fruit, however, any excess should be avoided and an adequate K:Ca balance should be achieved. Adequate concentration of Ca in the fruit prevents pre-and post-harvest fruit disorders and, at the same time, increases tolerance to pathogens. Although N promotes adequate growth soil N availability should be monitored to avoid excessive N uptake that may decrease fruit skin color and storability. Index terms: Macronutrients, micronutrients, nutritional status, production, quality. NUTRIÇÃO MINERAL, PRODUTIVIDADE E COMPOSIÇÃO DE FRUTOS DE FRUTÍFERAS DE CLIMA TEMPERADO:VIDEIRA, PEREIRA E MACIEIRA RESUMO -A adubação em frutíferas de clima temperado, entre as quais, videira (Vitis spp.), macieira (Malus domestica) e pereira (Pyrus communis), é realiza quando o solo não possui a capacidade de fornecer a quantidade de nutrientes de que a planta necessitaria, possibilitando às plantas expressarem seu potencial genético. Mas a aplicação de nutrientes na adubação de pré-plantio, crescimento e, especialmente, manutenção pode afetar o estado nutricional das frutíferas, refletindo-se na produtividade e na qualidade dos frutos. Porém, estas informações são dispersas na literatura e, por isso, a presente revisão, sem a pretensão de esgotar o assunto, objetivou compilar e apresentar informações sobre os efeitos de nutrientes na produtividade e na composição de frutos de videira, pereira e macieira. Ao longo do texto, são apresentadas informações sobre o impacto do fornecimento de nutrientes sobre o estado nutricional, a produtividade e as variáveis de qualidade dos frutos, como a cor, tamanho, teor de nutrientes, sólidos solúveis totais (SST), acidez, pH, antocianinas, polifenóis e desordens fisiológicas, que podem afetar não só a aquisição dos futos pelo consumi...

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Section: Calciummentioning

confidence: 99%

Section: Calciummentioning

confidence: 99%