Apple breeding for disease resistance in Hungary

Tóth, M.; Quang, D.X.; Rozsnyay, Z.

doi:10.1007/978-94-011-0467-8_6

Cited by 6 publications

(6 citation statements)

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“…Since the first Hungarian outbreak of fireblight on apple (Hevesi, 1996), the disease has been observed on other pomaceous fruits and in different parts of Hungary causing appreciable economic losses. Published data on susceptibility and resistance of pear and apple cultivars sometimes shows inconsistencies, depending on the country of origin and different ecological circumstances.…”

Section: Introductionmentioning

confidence: 99%

“…The aim of our research was to evaluate the host response of commercial apple and pear cultivars to Erwinia amylovora and to select traditional cultivars as sources of resistance for future breeding programmes. We also tested apple hybrids that displayed considerable resistance to Venturia inaequalis and Podosphera leucotricha (Tóth et al ., 1994), In addition, we started to screen domestic gene sources, mostly traditional apple and pear cultivars, for disease resistance, and to evaluate the susceptibility or resistance of commercially grown apple and pear cultivars and some Japanese pear cultivars that are candidates for naturalization in Hungary. Hybrids were selected for further experiments on fireblight resistance.…”

Section: Introductionmentioning

confidence: 99%

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Traditional and commercial apple and pear cultivars as sources of resistance to fireblight¹

Hevesi¹,

Göndör²,

Kasa³

et al. 2004

EPPO Bulletin

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In Hungary, fireblight research programmes were initiated on pear in 1999 and on apple in 2000, with the aim of evaluating the susceptibility or resistance of commercial cultivars. Sources of resistance for future breeding were also sought among traditional apple cultivars collected from Ukraine and pear cultivars in the Hungarian gene bank (Szigetcsép). Experiments were done under secure conditions. Inocula were mixtures of characteristic Erwinia amylovora isolates from pear and apple in Hungary. Host responses (symptom development, disease severity and multiplication rate of bacterial cells in host tissues) were assessed on shoots, flowers and fruits. About 30 pear and 30 apple cultivars, and 35 apple hybrids, were tested and grouped into four categories for pear and three for apple. Of the pear cultivars tested, 50% were susceptible, 30% moderately susceptible and only 10% of low susceptibility. Different plant organs occasionally displayed different responses. Members of the last two groups might serve as useful candidates for growing under IPM conditions. Among the traditional Hungarian varieties tested, we found high resistance in 'Sikulai' and 'Szemes alma', which could be used as sources of fireblight resistance in breeding programmes and also grown in organic orchards. Furthermore, among the offspring of the apple 'Prima' (scab-resistant), we have found highly resistant lines.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Traditional and commercial apple and pear cultivars as sources of resistance to fireblight¹

Hevesi¹,

Göndör²,

Kasa³

et al. 2004

EPPO Bulletin

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“…of Pomology of the Corvinus University of Budapest was started in the 1990s (Tóth et al. ), and several molecular studies have been carried out assisting the process (Király et al. ,b, Tóth et al.…”

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confidence: 99%

Identification of marker alleles linked to fire blight resistance QTLs in apple genotypes

et al. 2015

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Molecular marker analysis can be an effective tool when searching for new fire blight resistance donors. It can speed up the breeding process as well, even though many of the available markers linked to fire blight resistance QTLs have not yet been tested by screening a large number of cultivars. The aim of this study was to search for alternate sources of the three major QTLs of fire blight resistance; FBF7, FB_MR5 and FB_E, as well as to test the efficiency of some markers linked to minor QTLs. Altogether, nine primer pairs were used on 77 genotypes including new Hungarian cultivars and old apple cultivars from the Carpathian basin. Several marker alleles of FB resistance QTLs have been detected in the screened genotypes, most importantly the alleles coupling with FB_MR5 in the old cultivars ‘Kéresi muskotály’, ‘Szabadkai szercsika’ and ‘Batul’. We propose these cultivars as the first available resistance donors of FB_MR5 instead of the crabapple Malus × robusta 5. The results also bring new information regarding the resistance alleles of new Hungarian cultivars and selections.

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“…We selected traditional old apple cultivars in order to check disease resistance, as part of an apple breeding program (Tóth et al, 1994;2005 a, b).…”

Section: Introductionmentioning

confidence: 99%

Field Evaluation of Traditional Apple Cultivars to Induced Diseases and Pests

Bálint

Thiesz

Nyárádi

et al. 2013

Not Bot Hort Agrobot Cluj

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During the survey we studied traditional old apple cultivars in order to test disease resistance, as part of an apple breeding program. Diseases and pests assessments were made throughout the two growing season in 2008 and 2009 in traditional apple cultivars ('Batul' , 'Pónyik' , and 'Sóvári') from stray and commercial ('Golden Delicious' and 'Starkrimson') apple orchards. Our data add to a body of evidence indicating that traditional apple cultivars under natural selection and without pesticide regime are highly and/or moderately resistant to fire blight, apple powdery mildew and apple scab. High resistance was observed for green apple aphid ('Sóvári') and rosy leafcurling aphid (all cultivars, except 'Sóvári') throughout the assessment. Susceptibility from mediate to high level was observed for fruit peel moth and pear-leaf blister moth, while resistance and/or moderate resistance for spotted tentiform leafminer and codling moth. The codling moth damages were significantly correlated with seed number in fruits throughout the whole vegetation period. We can conclude that old apple cultivars sustained in their original regions could be a significant source of genes for apple breeding programs.

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Apple breeding for disease resistance in Hungary

Cited by 6 publications

References 1 publication

Traditional and commercial apple and pear cultivars as sources of resistance to fireblight¹

Traditional and commercial apple and pear cultivars as sources of resistance to fireblight¹

Identification of marker alleles linked to fire blight resistance QTLs in apple genotypes

Field Evaluation of Traditional Apple Cultivars to Induced Diseases and Pests

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Apple breeding for disease resistance in Hungary

Cited by 6 publications

References 1 publication

Traditional and commercial apple and pear cultivars as sources of resistance to fireblight1

Traditional and commercial apple and pear cultivars as sources of resistance to fireblight1

Identification of marker alleles linked to fire blight resistance QTLs in apple genotypes

Field Evaluation of Traditional Apple Cultivars to Induced Diseases and Pests

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Traditional and commercial apple and pear cultivars as sources of resistance to fireblight¹

Traditional and commercial apple and pear cultivars as sources of resistance to fireblight¹