Sources and seasonal dynamics of Alternaria inoculum associated with leaf blotch and fruit spot of apples

Alternaria leaf blotch and fruit spot caused by Alternaria spp. cause annual losses to the Australian apple industry. Control options are limited, mainly due to a lack of understanding of the disease cycle. Therefore, this study aimed to determine potential sources of Alternaria spp. inoculum in the orchard and examine their relative contribution throughout the production season. Leaf residue from the orchard floor, canopy leaves, twigs and buds were collected monthly from three apple orchards for two years and examined for the number of spores on their surface. In addition, the effects of climatic factors on spore production dynamics in each plant part were examined. Although all four plant parts tested contributed to the Alternaria inoculum in the orchard, significant higher numbers of spores were obtained from leaf residue than the other plant parts supporting the hypothesis that overwintering of Alternaria spp. occurred mainly in leaf residue and minimally on twigs and buds. The most significant period of spore production on leaf residue occurred from dormancy until bloom and on canopy leaves and twigs during the fruit growth stage. Temperature was the single most significant factor influencing the amount of Alternaria inoculum and rainfall and relative humidity showed strong associations with temperature influencing the spore production dynamics in Australian orchards. The practical implications of this study include the eradication of leaf residue from the orchard floor and sanitation of the canopy after harvest to remove residual spores from the trees.

Seasonal Greeting token-1981

Obverse: Emblem of the Israel Government and Medals Corporation. Reverse: A Jerusalem panorama, inscription.

Seasonal Greeting token-1977

Obverse: Within a circle (a symbol of the sun) an inscription. Reverse: The emblem of the Israel Government Coins and Medals Corporation, inscription.

Seasonal Greeting token-1976

Obverse: Stylized Star of David. Reverse: Emblem of the Israel Government Coins and Medals Corporation.

Seasonal Greeting token-1974

Obverse: Emblem of the 25th Anniversary of the State of Israel, menorah and number 25 created by ribbon. Reverse: Emblem of the Israel Government Coins and Medals Corporation.

Seasonal Greeting token-1973

Obverse: Stylized Desing of an Israeli Navy ship with rocket coming out of the canon. Reverse: Emblem of the Israel Government coins and Medals Corporation.

Seasonal Greeting token-1975

Obverse: In the center stylized number 26. Reverse: The emblem of the Israel Government Coins and Medals Corporation.

Seasonal Greeting token-1980

Obverse: In the center stylized inscription. Reverse: Emblem of the Israel Government Coins and Medals Corporation.

Consumers and the conceptual and practical appropriation of functional foods

Taking the appropriation of objects as a theoretical starting point, this study makes a distinction between a conceptual and practical level of adopting new objects and products in everyday life. The study applies the concept of appropriation in social food research and examines consumers appropriation of functional foods, i.e., foods developed to improve health and well-being or reduce the risk of disease beyond the usual nutritional effects of foods. The study uses the concept of appropriation to understand the adoption and the process of making functional foods our own . First, the study focuses on the conceptual appropriation by analysing consumers interpretations and opinions on functional foods. Second, it analyses the use of functional foods and examines the role of sociodemographic and food- and health-related background factors in the use of functional foods. Both quantitative and qualitative data were used in the study. Altogether 1210 Finns representative of the population took part in a survey carried out in 2002 as computer-assisted telephone interviews (CATI). The survey examined the acceptability and use of functional foods in Finland. In 2004, eight focus group discussions were organised for 45 users and non-users of cholesterol-lowering spreads. The qualitative study focused on consumers interpretative perspectives on healthy eating and functional foods. The findings are reported in four original articles and a summary article. The results show that the appropriation of functional foods is a multifaceted phenomenon. The conceptual appropriation is related to consumers interpretations of functional foods in the context of healthy foods and healthy eating; their trust in the products, their manufacturers, research and control; and the relationship of functional foods and the ideal of natural foods. The analysis of the practical appropriation of four different types of foods marketed as functional showed that there are sociodemographic differences between users and non-users of the products, but more importantly, the differences are related to consumers food- and health-related views and practices. Consumers ways of appropriating functional foods in the conceptual and practical sense take shape in a complex web of ideas and everyday practices concerning food, health and eating as a whole. The results also indicate that the conceptual and practical appropriation are not necessarily uniform or coherent processes. Consumers interpret healthy eating and functional foods from a variety of perspectives and there is a multiplicity of rationales of using functional foods. Appropriation embraces many opposing dimensions simultaneously: good experiences and doubts, approval and criticism, expectations and things taken for granted.

Seasonal Greeting token 1983

Obverse: Emblem of the Israel Government Coins and Medal Corporation. Reverse: Stylized design of the Western Wall and the Mount above.

Seasonal Greeting token 1986

Obverse: Emblem of the Israel Government Coins and Medal Corporation. Reverse: The monument to Jewish soldiers erected at the Jewish Martyrs Memorial Institute of Yad Vashem in Jerusalem.

Seasonal Greeting token 1993

Obverse: Emblem of the Israel Government Coins and Medal Corporation. Reverse: Stylized menorah, inscription.