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Thomas Sotiropoulos, Magdalene Koukourikou-Petridou, Antonios Petridis, Dimitrios Stylianidis, Dimitrios Almaliotis, Ioannis Papadakis, Ioannis Therios, and Athanassios Molassiotis


In Greece, the dominant kiwifruit cv. since 1973 has been Hayward with a total annual fruit production of 40,000 t and an acreage of 4400 ha (FAO, 2004). However, selection among 15,000 seedlings originated from open-pollinated ‘Hayward’ plants in northern Greece in 1989 by the farmer Christos Tsechelidis, resulting in the cv. Tsechelidis. Based on molecular analysis using small satellite DNA markers, the two genotypes (‘Hayward’, ‘Tsechelidis’) were considered to be different because they presented polymorphism in at least eight alleles. For example, the following primers/alleles, 97-411, 96-037b, 96-034, and 96-092, were present in ‘Tsechelidis’ and absent

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Thomas Thomidis, Thomas Sotiropoulos, Nikitas Karagiannidis, Constantinos Tsipouridis, Ioannis Papadakis, Dimitrios Almaliotis, and Nikolaos Boulgarakis

The effectiveness of the calcium products Chelan, Power-Ca, and calcium chloride to reduce the development of Monilinia laxa on ‘Andross’ peach (Prunus persica) was investigated. The mycelium growth of M. laxa on potato dextrose agar modified with Chelan, Power-Ca, or calcium chloride compound at concentrations 1, 2, and 4 g·L−1 was significantly reduced in comparison with the water. Chelan, Power-Ca, and calcium chloride applied as foliar sprays did not significantly affect the development of the pathogen on inoculated immature and mature peaches. However, dipping peaches in solutions containing one of the calcium products tested reduced significantly the percentage of M. laxa infection on inoculated fruit.