Yazar "Asma, B. M." seçeneğine göre listele

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    Breeding Late Ripening Apricots in Turkey
    (Int Soc Horticultural Science, 2012) Asma, B. M.; Abaci, Z. Tugba; Kan, T.; Birhanli, O.; Erdogan, A.
    Malatya is considered to be a center of dried apricot production. The production is dependent on only a few cultivars like 'Hacihaliloglu' and 'Kabaasi'. To diversify the production patterns, fresh consumption of apricots grown in the region is being encouraged. For this purpose, extending the harvesting period utilizing early and late table cultivars is crucial. A breeding study aimed to develop new late-ripening apricot cultivars was initiated at Inonu University. A total of 2250 hybrid trees was planted to experimental plots from 24 combinations. More than 1200 hybrid trees developed fruits in two consecutive seasons and the fruits were subjected to pomological analyses. A great deal of variation was observed for maturity date which was controlled by several factors. Several promising hybrids were selected for further investigations. The maturity period ranged 148-172 days for these selections while they produced fruits of 23.2-45.4 g weight and 18.0-22.1% soluble solids.
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    Breeding Program for Plum Pox Virus Resistance in Turkey: Preliminary Results
    (Int Soc Horticultural Science, 2012) Asma, B. M.
    A breeding study for identifying new apricot cultivars resistance to Sharka disease caused by Plum pox virus (PPV) was initiated at Inonu University in 2004. Cultivars exhibiting some resistance to PPV, 'Stark Early Orange', 'Harcot', 'Setalla' and 'Goldrich' were crossed to local apricot selections. A total of 3650 hybrid trees were planted coming from 55 combinations. The reactions of the hybrids to PPV is being evaluated molecularly. The crossing yielded variable success ratios from 2.3% ('Soganci' x 'Harcot') to 23.5% ('Cataloglu' x 'Harcot'). The fruits obtained from 2009 and 2010 from a total of 286 hybrids were subjected to pomological analyses. The fruit weight among these hybrids varied between 35.7-57.5 g while soluble solid content ranged between 16.0-23.7%. Further details regarding pomological characteristics of these hybrids will be provided during the presentation.
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    Investigation of resistance of apricot progeny to Plum pox virus through molecular markers
    (Int Soc Horticultural Science, 2017) Ates, S. Yalcin; Gazel, M.; Serce, C. Ulubas; Asma, B. M.; Caglayan, K.
    Plum pox virus (PPV) is the causal agent of sharka disease, which is mainly destructive on apricot (Prunus armeniaca L.), plum (Prunus domestica L.) and peach (Prunus persica L.). There are no efficient control methods except using PPV-free propagating materials and planting PPV-resistant or at least less-susceptible rootstocks. Therefore, lots of studies have been conducted in recent years on breeding of PPV-resistant plants. The objective of this study was the introduction and development of marker-assisted selection (MAS) for PPV resistance in F-1 and F-2 progenies of some Turkish apricot cultivars. Local apricot cultivars 'Adilcevaz 5', 'cologlu', 'Sekerpare' and 'cataloglul crossed with PPV-resistant 'Stark Early Orange' (SEO) were screened with molecular markers PGS1.21 and PGS2.23 co segregating with resistance to PPV in 2011. Of all combinations, seven of 20 progeny obtained from SEO x 12 of 34 progeny obtained from SEO x 'Adilcevaz 5, five of 10 progeny obtained from SEO x 'coloklu, 15 of 37 progeny obtained from SEO x `Sekerpare' and eight of 33 progeny obtained from SEO x 'cataloglu' exhibited resistant alleles.
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    New Apricot Selections for Dried and Table Consumption in Eastern Anatolia-Turkey
    (Int Soc Horticultural Science, 2012) Asma, B. M.
    The Eastern Anatolian Region of Turkey has many seedling-grown apricot populations exhibiting a large variation for major horticultural characteristics. More than 1000 hybrids were evaluated for identifying superior table and drying apricot genotypes mainly for yield and quality characteristics. The region with emphasis on Malatya, Erzincan, Sivas, Elazig was preliminarily investigated. About 350 trees were identified for further horticultural studies. Among these, three early, three late and four mid-season accessions were identified for their superior table apricot characteristics while three drying genotypes were selected as well. Among the selected accessions, fruit weight ranged from 25.8 to 72.6 g while soluble solids contents ranged from 16.6 to 24.1%. Fruit development period varied from 78-82 days among early accessions up to 160-171 days among late genotypes. Drying efficiency ranged from 27.5 to 29.6% among the drying apricot accessions.
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    Screening for Resistance to Plum Pox Virus in Some Local Turkish Apricot Cultivars and Their Crosses by Molecular Markers
    (Int Soc Horticultural Science, 2015) Serce, C. Ulubas; Gazel, M.; Caglayan, K.; Asma, B. M.; Badenes, M. L.
    Turkey is the most important producer and exporter country of apricot, Prunus armeniaca. Production of apricots for fresh market relies on foreign cultivars grown on Mediterranean and Aegean regions while Malatya is the most important region for production of dry apricots based on local cultivars. Plum pox virus (PPV) in Turkey has been known since 1968, but it was not widespread until recent years. Malatya region has been free of sharka disease so far, but the disease has already been reported from many different provinces since 2006. Because of that, introgression of resistance to PPV in the local cultivars with good pomological characteristics became an important objective for the apricot crop. In the current breeding program, obtaining new cultivars resistant to PPV, selection of resistant seedlings by using molecular markers linked to PPV resistance was aimed at. Nineteen local apricot genitors and progenies obtained from the crosses between the PPV resistant cultivar 'Stark Early Orange' (SEO), 'Harcot' and local cultivars such as 'Hacihaliloglu', 'Kabaasi', 'Hasanbey', 'Cologlu', 'Adilcevaz5', 'Sekerpare', 'MahmudunErigi', 'Soganci' and 'Cataloglu' were screened with markers. The markers PGS1.21 and PGS2.23 co-segregating with resistance to PPV were used to screen a total of 189 apricot progenies. None of the local genitors had alleles linked to PPV resistance. Among the progenies screened, 15 seedlings from 'Sekerpare' by SEO, 12 from 'Adilcevaz5' by SEO, 7 from 'Hacihaliloglu' by SEO, 9 from 'Kabaasi' by SEO, 5 from 'Cologlu' by SEO, 9 from 'Cataloglu' by SEO, 4 from 'Hasanbey' by SEO, and 1 from 'MahmudunErigi' by SEO and none of the 'Harcot' by 'Soganci' presented resistant alleles and were selected for further studies.