Reproduktivna kompatibilnost sorte trešnje 'Tugarka'
| Autor: | Mira Radunić, G. Vuletin Selak, I. Kovačević |
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| Jazyk: | chorvatština |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Pomologia Croatica : Glasilo Hrvatskog agronomskog društva Volume 15 Issue 3-4 |
| ISSN: | 1848-9028 1330-6626 |
| Popis: | 'Tugarka' je najzastupljenija sorta trešnje u mediteranskom dijelu Hrvatske. Jedan od uzroka njene neredovite rodnosti je loš uspjeh oprašivanja s inkompatibilnim sortama prisutnim u nasadima. Analizirana je uspješnost zametanja plodova nakon samooprašivanja, stranooprašivanja i slobodnog oprašivanja sorte Tugarka, te su izdvojeni njeni najbolji oprašivači. U ulozi oprašivača, u istraživanje su uključene sorte Lambert compact, Bing spur, Van compact i višnja maraska 'Poljička', koje su istovremeno cvjetale sa glavnom istraživanom sortom. Uspjeh klijavosti polena analiziran je metodom viseće kapi u 12% otopini saharoze pri temperaturi od 22ºC. Klijavost polena sorti oprašivača zabilježena je u rasponu od 35% ('Van compact') do 41.04% ('Bing spur'). Zbog izostanka zametanja plodova nakon samooprašivanja 'Tugarka' je opisana kao autoinkompatibilna sorta. Značajno najveći uspjeh zametanja plodova kod sorte Tugarka zabilježen je nakon oprašivanja sa sortom Lambert compact (22.5%), a najmanji nakon oprašivanja sa višnjom maraskom 'Poljička' (14.2%). 'Tugarka' is most presented cultivar grown in orchards of Mediterranean part of Croatia. Inadequate pollination caused irregular yield of that valuable cultivar. The aim of this study was to determinate the success of self-pollination, cross-pollination and free-pollination of 'Tugarka', and to define its best pollenizer(s). Cultivars used as pollen donors, 'Lambert compact', 'Bing spur', 'Van compact', and sour cherry marasca 'Poljička', were selected according to their simultaneous flowering period with 'Tugarka'. Pollen germination of tested cultivars was determined in 12% sucrose solution at 22ºC using hanging drop technique. Controlled pollinations with pollen of each pollenizer were carried out during the full bloom. Fruit set following selfpollination, cross-pollination and free-pollination was analysed just before the harvest. Pollen germination rates varied from 35% ('Van compact') to 41.04% ('Bing spur'). Absence of fruit set following self-pollination described 'Tugarka' as self-incompatible cultivar. Significantly the best fruit set of 'Tugarka' was recorded after the pollination with 'Lambert compact' (22.5%), and the lowest following pollination with sour cherry 'Poljička' (14.2%). |
| Databáze: | OpenAIRE |
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