Articles
EVALUATION OF SUSCEPTIBILITY TO NECTRIA CANKER AS INITIAL MATERIAL FOR APPLE BREEDING
Article number
976_78
Pages
549 – 554
Language
English
Abstract
One of the main aims of apple breeding in Belarus is resistance to disease.
Increase of damage caused by nectria canker (Neonectria galligena (Bres.) Rossman et Sammels) in apple orchards of Belarus was an incentive to start a wide evaluation of genotypes for resistance to this disease.
The resistance to nectria canker was investigated within the collection of apple species, hybrids and cultivars, under field and artificial conditions.
It was found that all the accessions studied were infected by N. galligena, however, considerable differences in damage intensity between cultivars and hybrids were noted.
As a result of these studies, the following cultivars and hybrids were selected as field resistant or tolerant: Bananovoye, Belorusskii sinap, Imant, Minskoye, Sinap Belsad, Belorusskoye sladkoye, Pamyat Syubarovoi, Borovinka, Peppin Litowskiĭ, Pepinka zolotistaya, Fameuse, Liberty, 84-125/39, 85-2/25 and some offspring of M. sieboldii. Belorusskiĭ sinap, Belorusskoye sladkoye, Imant, Pamyat Syubarovoi, Pamyat Sikory, Syabryna and the hybrid 84-125/39 proved to be very resistant to N. galligena under conditions of artificial inoculation.
From the studied plant material some accessions have been selected that are characterized by a multiple resistance to nectria canker, scab, powdery mildew and Phyllosticta sp.
This is very important for future apple breeding.
Increase of damage caused by nectria canker (Neonectria galligena (Bres.) Rossman et Sammels) in apple orchards of Belarus was an incentive to start a wide evaluation of genotypes for resistance to this disease.
The resistance to nectria canker was investigated within the collection of apple species, hybrids and cultivars, under field and artificial conditions.
It was found that all the accessions studied were infected by N. galligena, however, considerable differences in damage intensity between cultivars and hybrids were noted.
As a result of these studies, the following cultivars and hybrids were selected as field resistant or tolerant: Bananovoye, Belorusskii sinap, Imant, Minskoye, Sinap Belsad, Belorusskoye sladkoye, Pamyat Syubarovoi, Borovinka, Peppin Litowskiĭ, Pepinka zolotistaya, Fameuse, Liberty, 84-125/39, 85-2/25 and some offspring of M. sieboldii. Belorusskiĭ sinap, Belorusskoye sladkoye, Imant, Pamyat Syubarovoi, Pamyat Sikory, Syabryna and the hybrid 84-125/39 proved to be very resistant to N. galligena under conditions of artificial inoculation.
From the studied plant material some accessions have been selected that are characterized by a multiple resistance to nectria canker, scab, powdery mildew and Phyllosticta sp.
This is very important for future apple breeding.
Authors
Z.A. Kazlouskaya, Y.G. Marchuk
Keywords
Malus×domestica, Neonectria galligena, selection, Belarus
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