Yazar "Akgöl, Batuhan" seçeneğine göre listele

Listeleniyor 1 - 4 / 4
  • Küçük Resim
    Öğe
    Diversity analysis of genetic, agronomic, and quality characteristics of bread wheat (Triticum aestivum L.) cultivars grown in Turkey
    (2016) Erayman, Mustafa; İlhan, Emre; Eren, Abdil Hakan; Güngör, Hüseyin; Akgöl, Batuhan
    Turkey is an important bread wheat producer. The objective of this study was to dissect the diversity of genetic, agronomic, and quality characteristics of bread wheat cultivars grown on 25% of the total wheat area in Turkey. A total of 24 wheat cultivars and 5 wild progenitors of wheat were examined using 24 simple sequence repeat (SSR) primers with a known physical locus on the A, B, and D genomes of hexaploid wheat. A total of 72 bands produced 939 alleles on the wheat cultivars and wild progenitors. Markers were efficient in discriminating the species and the highest genetic diversity information was obtained from the markers Xgwm312 and Xgwm372. Microsatellite markers clearly separated cv. Pandas from all other cultivars although it was closely related to most of them in terms of agronomic and quality traits. Four agronomic characteristics including yield component traits and eight bread quality analyses were used for the diversity analyses. A significant association between morphological and bread wheat quality traits was observed while the correlation was weak with the genetic data. Cultivars were also classified with respect to release year and origin. Molecular variance between old (released before the year 2000) and new cultivars accounted for 1% of the total variation and the variance was 3% between national and foreign cultivars. Results showed that the number of alleles was lower in national and new cultivars compared to foreign and old cultivars. Therefore, breeding sources do not appear to improve the genetic base of wheat cultivars in Turkey. Introducing new variation sources may be needed to broaden the narrowed gene pool of bread wheat.
  • Küçük Resim
    Öğe
    Genetic diversity of Turkish commercial cotton varieties revealed by molecular markers and fber quality traits
    (2014) Elçi, Eminur; Akışcan, Yaşar; Akgöl, Batuhan
    To assess the genetic diversity and relationships among commercial Gossypium species released in Turkey between 1964 and 2014, 96 cotton varieties were analyzed using morphological and molecular markers. Morphological analysis was performed based on 4 fber quality traits including fber length, strength, fneness, and uniformity, and the mean values of each trait for each genotype were calculated using 2-year data. Te results showed that most of the genotypes have long fber length, very high fber strength, coarse (45 genotypes) or average (50 genotypes) fber fneness, and high uniformity. Twenty-six simple sequence repeat (SSR) markers and 14 markers linked to quantitative trait loci (QTLs) for fber quality traits produced a total of 103 alleles, with an average of 2.57 alleles per locus ranging from 80 bp to 300 bp products, with an average polymorphism information content (PIC) value of 0.233. Markers DPL513 and DPL431 (among 26 SSR markers) and markers CIR246 and BNL4108 (among 14 molecular markers) were found to be very informative, with 0.724, 0.663, 0.749, and 0.583 PIC values, respectively. Te combined morphological and molecular data analysis resulted in more than 8 clades using the unweighted pair group method with arithmetic average (UPGMA). Te upland cotton varieties were distinctly separated from the lowland cotton variety Maydos Yerlisi (Gossypium herbaceum L.). Within the upland cotton varieties, the Egyptian cotton variety Giza 70 (G. barbadense L.) was distinctly separated from commercial cotton varieties of Turkey ( G. hirsutum L.), as revealed by both morphological and molecular dendrograms. Principal component analysis (PCA) derived from combined data was in agreement with UPGMA analysis. It is concluded that commercial Turkish cotton varieties have a good genetic diversity with high fber quality, considering the upland cotton’s narrow genetic structure. Tese results can provide a useful guide for selecting specifc germplasm with distinct genetic backgrounds in cotton breeding programs.
  • [ N/A ]
    Öğe
  • Küçük Resim
    Öğe
    Pamuğun vegetatif ve generatif özelliklerinin su stresi ve yapraktan kükürt gübrelemesine tepkisi
    (2023) Ödemiş, Berkant; Akışcan, Yaşar; Akgöl, Batuhan; Can, Deniz
    Bu çalışma, farklı su stresi düzeylerinin pamuğun (Gossypium hirsutum L.) vegetatif ve generatif özelliklerine etkisini ve su stresinin etkisinin giderilmesinde yapraktan kükürt uygulamalarının etkilerinin belirlenmesi amacıyla yapılmıştır. Denemede, elverişli kapasitenin 3 farklı sulama düzeyinde (I100, I66, I33, I0) ve ) yapraktan kükürt uygulamalarının [kükürtsüz (S0), 150 ml da-1 (S1), 250 ml da-1 (S2), 350 ml da-1 (S3)] etkileri araştırılmıştır. Bitki su tüketimi (ET) kükürt dozları arttıkça ilk yıl bir miktar azalmış, ikinci yıl da ise artmıştır. Kükürt dozları ilk yıl kuru madde miktarında ikinci yıl YAI’nde (yaprak alan indeksi) polynominal artışa neden olmuştur. Ana dal üzerindeki kırmızılık boyu su stresi arttıkça doğrusal olarak artmıştır. Sulama suyu miktarı sulanmayan konuya göre kuru madde, bitki boyu ve yaprak alan indeksi ortalama %112-49, %46-64, %56-360 artırmıştır. S0 dozu esas alındığında aynı parametreler %14-4, %0.80-28 ve %10-12 arasında artış göstermiştir. Taraklanmadan ilk çiçeğin görüldüğü döneme kadar olan periyodun verim unsurlarını etkileyen en önemli gelişme dönemi olduğu; kuraklığa en duyarlı dönemin çiçeklenme dönemi olduğu gözlenmiştir. Kükürtün yapraktan uygulanması klorofil içeriğini artırsa da vegetatif ve generatif özelliklere önemli bir etkisi belirlenmemiştir.