In Croatia, in the County of Istria, there are about 150 ha of forest areas where sweet chestnut (Castanea sativa Mill.) is growing. Regional varieties are usually associated to the very small and small fruits, and are very susceptible to the chestnut blight and chestnut gall wasp (Dryocosmus kuriphilus). Due to that, our aim was to introduce new varieties of larger fruits and more resistant to pests and diseases (chestnut blight and gall wasp) and to determine their morphological characteristics. The experimental orchard was planted in Rovinj, within the company Skink Ltd., located in Valalta bb, with five different varieties of European x Japanese hybrids: Marsol, Maraval, Marigoule, Precoce Migoule, Bouche de Betizac and two regional varieties: Istrian maroon and “kostanj”. During the growing seasons of 2013-14, the growth stages and the resistance to the disease and pests were observed, and the measurements of weight and fruit dimensions were made. The variety Bouche de Betizac showed the earliest maturation of fruits, while the latest one was the variety Maraval, The most resistant variety against gall wasp and blight was variety Bouche de Betizac. The heaviest fruits were measured at variety Marigoule (22.7g), and the lightest at variety of Istrian kostanj (7.1g). Marsol and Bouche de Betizac’s chestnuts were the biggest, while varieties Precoce Migoule and “Istrian kostanj” had the smallest fruits. Due to the favourable climate, the extended production was present at the end of October, giving fruits within varieties Marsol and Bouche de Betizac. Based on the current research in environmental conditions of western Istria, we can conclude that the introduced varieties proved to be better at monitored and measured parameters compared to the local population.

Study of adaptation of five introduced varieties of sweet chestnut in Istria County (Croatia)

DONNO, DARIO;
2015-01-01

Abstract

In Croatia, in the County of Istria, there are about 150 ha of forest areas where sweet chestnut (Castanea sativa Mill.) is growing. Regional varieties are usually associated to the very small and small fruits, and are very susceptible to the chestnut blight and chestnut gall wasp (Dryocosmus kuriphilus). Due to that, our aim was to introduce new varieties of larger fruits and more resistant to pests and diseases (chestnut blight and gall wasp) and to determine their morphological characteristics. The experimental orchard was planted in Rovinj, within the company Skink Ltd., located in Valalta bb, with five different varieties of European x Japanese hybrids: Marsol, Maraval, Marigoule, Precoce Migoule, Bouche de Betizac and two regional varieties: Istrian maroon and “kostanj”. During the growing seasons of 2013-14, the growth stages and the resistance to the disease and pests were observed, and the measurements of weight and fruit dimensions were made. The variety Bouche de Betizac showed the earliest maturation of fruits, while the latest one was the variety Maraval, The most resistant variety against gall wasp and blight was variety Bouche de Betizac. The heaviest fruits were measured at variety Marigoule (22.7g), and the lightest at variety of Istrian kostanj (7.1g). Marsol and Bouche de Betizac’s chestnuts were the biggest, while varieties Precoce Migoule and “Istrian kostanj” had the smallest fruits. Due to the favourable climate, the extended production was present at the end of October, giving fruits within varieties Marsol and Bouche de Betizac. Based on the current research in environmental conditions of western Istria, we can conclude that the introduced varieties proved to be better at monitored and measured parameters compared to the local population.
2015
Third Balkan Symposium on Fruit Growing
Belgrade, Serbia
16-18/09/2015
Book of Abstracts
International Society for Horticultural Science (ISHS)
60
60
Castanea sativa Mill.; Fruit; Istria; Varieties; Pest and disease resistance; Sweet chestnut
Prgomet, Iva; Donno, Dario; Prgomet, Željko
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1532867
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