The Variability of Juvenile Period, Fruits Size and Response to Diseases Attack on F1 Interspecific Apple Hybrids and the Efficiency of Selection
DOI:
https://doi.org/10.15835/nbha3814682Abstract
Interspecific hybridizations represent one of the apple breeding methods by which a wide variability can be achieved, useful for creating new cultivars. The study of 2190 interspecific hybrids, obtained from 25 combinations among crab apple species (Malus coronaria, M. floribunda, M. niedzwetzkyana, M. zumi, M. prunifolia) and different apple cultivars, points out a large variability of the F1 seedlings for several traits, with significant importance in apple breeding programs. The first year of fructification, as mean per hybrid combination, varied from 6 (M. zumi x 'Jonathan') to 9.3 years; the average hybrid's age for fructification was 7.4 years. The size of fruits among families varied from 1.5 ('Starkrimson' x M. prunifolia) to 4.0 ('Reinette Baumann' x M. zumi), the mean being settled at 2.8 (therefore below mark 3, meaning 'small fruits'). The lowest infection rate both for apple scab and powdery mildew attack was noticed at hybrids from M. coronaria x 'Reinette Baumann'. On the whole, the hybrids with genitors of 'species x cultivars' type have had an early fruiting and a better resistance to scab and powdery mildew, compared to the ones from 'cultivars x species' combinations. The large variability of the studied traits gave the possibility to identify offsprings with desirable characteristics on nine hybrid combinations. Among these, 53 elite plants were selected, with a strength of selection of 2.42%, therefore a relative low value, correlated with the peculiarities of the interspecific population and the selection criteria for dessert apple.Downloads
Published
2010-06-15
How to Cite
SESTRAS, R. E., DAN, C., PAMFIL, D., SESTRAS, A. F., JÄNTSCHI, L., & BOLBOACĂ, S. D. (2010). The Variability of Juvenile Period, Fruits Size and Response to Diseases Attack on F1 Interspecific Apple Hybrids and the Efficiency of Selection. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 38(1), 234–240. https://doi.org/10.15835/nbha3814682
Issue
Section
Research Articles
CITATION
DOI: 10.15835/nbha3814682
License
Copyright (c) 2010 Radu E. SESTRAS, Catalina DAN, Doru PAMFIL, Adriana F. SESTRAS, Lorentz JÄNTSCHI, Sorana D. BOLBOACĂ
This work is licensed under a Creative Commons Attribution 4.0 International License.
License:
© Articles by the authors; licensee UASVM and SHST, Cluj-Napoca, Romania. Papers published in the journal Notulae Botanicae Horti Agrobotanici Cluj-Napoca are open access distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses).
Open Access Journal:
The journal allows the author(s) to retain publishing rights without restriction. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author.