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Başlık: Determination of optimal mutagen dosage and its effects on morpho-agronomic traits in putative mutants of ‘Amasya’ apple
Diğer Başlıklar: Određivanje optimalnog mutagenog doziranja i njegovih efekata na morpho-agronomske osobine kod potencijalnih mutanata “Amasia” jabuke
Yazarlar: Atay, A. Nilgün
Atay, Ersin
Kunter, Burak
Kantoğlu, K. Yaprak
Kaplan, Nejdet
TAEK-SANAEM
https://orcid.org/0000-0002-7557-360X
Anahtar kelimeler: Fruit breeding
Meyve ıslahı
Mutation breeding
Mutasyon ıslahı
Gamma irradiation
Gama ışınlaması
Malus sylvestris
Malus domestica
Yayın Tarihi: Ağu-2019
Yayıncı: Serbian Genetics Society
Atıf: Atay, A. N. ... [ve arkadaşları]. (2019). Determination of optimal mutagen dosage and its effects on morpho-agronomic traits in putative mutants of ‘Amasya’ apple. Genetika Belgrade, 51(2), 629-639.
Özet: Mutation breeding is one of the efficient ways to create new genotypes. The starting material of this study was the ‘Amasya’, a Turkish apple cultivar. This study aimed to identify optimal mutagen dosage that is the most important prerequisite to create a proper mutant population, and evaluate the genetic variability for morpho-agronomic traits (e.g. tree height and fruit number) in the putative apple mutants of ‘Amasya’ irradiated at the optimal mutagen dosage. In the first year of the study, to determine the optimal mutagen dosage, dormant ‘Amasya’ scion woods were irradiated at 0, 10, 20, 30, 40, 50 and 60 gray dosages using 60Co source. The optimal mutagen dosage was determined as 29.01 gray for ‘Amasya’ concerning the 50% shoot length reduction in comparison to the non-irradiated control plants. In the following year, more or less 2000 dormant ‘Amasya’ scion woods were irradiated at the optimal mutagen dosage to generate a mutant population of ‘Amasya’ apple cultivar. Mutation frequency based on the visual observations of plant abnormalities was observed. Then three years, genetic uniformity was analyzed through the growth of the mutant population, and mutation frequency (%) determined. These results indicated that there was considerable genetic variability in response to irradiation for evaluated traits. Most of the plants in the putative mutant population, nearly 80%, had a significantly shorter tree height and trunk cross-sectional area than standard ‘Amasya’. The mutants/genotypes identified in this study could be used improvement of new promising apple cultivars with good agronomical traits.
URI: http://kurumsalarsiv.taek.gov.tr/handle/1/1590
ISSN: 1820-6069
Koleksiyonlarda Görünür:Makale 2010-2019 yılları

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