ASSESSMENT OF NEW APPLE HYBRIDS
##plugins.themes.bootstrap3.article.sidebar##
##plugins.themes.bootstrap3.article.main##
Апстракт
As a result of breeding activity at the Institute of Agriculture in Kyustendil are received a large number of apple hybrids. In the article are presented data for 5 promising hybrids. The study was carried out during the period 2012-2016. The trees are grafted on rootstock MM 106 and planted in the spring of 2007 at distances of 4.5 x 2.5 m. Ten years after planting the largest trunk crosssectional area (TCSA) had the trees of hybrid № 2/30 (‘Prima’ x ‘Sekai Ichi’) and the smallest of hybrid № 2/28 (‘Prima’ x ‘Florina’). The highest average yield per tree was obtained from hybrid № 1/3 (‘Mollie’s Delicious’ – open pollinated) - 25.8 kg, followed by № 1/5 (‘Malus robusta’ x ‘Liberty’) -24.9 kg. The fruit of № 1/5 were the largest - 230 g. The fruit of hybrid № 1/26 (‘Melrose’ x ‘Kent’) had the highest fruit flesh firmness - 9.05 kg/cm2, while those of hybrid № 2/28 and № 2/30 had the lowest firmness - 7.28 and 7.36 kg/cm2, respectively. The highest percentage of soluble solids (17,8%) and total sugar (8,7%) were contained in the fruit of hybrid № 1/3.
Downloads
##plugins.themes.bootstrap3.article.details##
Референци
2. Blagov, A., N. Christov, D. Sotirov and A. Stoyanova. (2009). Comparison of some new apple and sweet cherry cultivars under the environmental conditions of Kyustendil, Bulgaria. Acta Hortic, (825): 89-96.
3. Blagov, A. (2011). Some results of agrobiological investigation of apple cultivars and Hybrids in Kyustendil region. Plant Science, (48): 14-19.
4. Dzhuvinov, V., Penev, R., Slavov, I., Kutinkova, H., Gercheva, P., and Nacheva, L. (2014). The major results from the evaluation of genetic resourses and breeding of apple in the Fruit Growing Institute – Plovdiv. Plant Science, (51): 3-8.
5. Laurens, F. (1999). Review of the current apple breeding programmes in the world: objectives for scion cultivar improvement. Proc. of the Eucarpia Symp. on Fruit Breeding and Genetic Eds. K. R. Tobutt F. H. Alston. Acta Hortic, (484): 163-170.
6. Lukic, M., Tesovic, Z., Maric, S. and Sreckovic, M. (2005). Rezultati proucavanja novih sorti jabuke u uslovima Cacka. Vocarstvo, 39 (151): 233-239.
7. Lukic, M., S. Maric. (2015). Physiological and pomological properties of intense-colouring sports of ‘Gala’ and ‘Elstar’ apple cultivars. Journal of mountain agriculture on the Balkans. Vol. 18 (2): 344-360.
8. White, A. (2000). Breeding apple varieties for the world market. Hort. Research, (33): 116-118.