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Dergiler / Research in Agricultural Sciences / 2026 / Volume: 57 Issue: 2

Arpada Verim ve Kalite Özelliklerinin Genetik Parametrelerinin ve Çevresel Tepkilerinin İncelenmesi

Dissecting Genetic Parameters and Environmental Responses of Yield and Quality Traits in Barley

Cengiz Türkay(ISPARTA UYGULAMALI BİLİMLER ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ, TARLA BİTKİLERİ BÖLÜMÜ)0000-0003-3857-0140
İlknur Akgün(Isparta Uygulamalı Bilimler Üniversitesi, Ziraat fakültesi)0000-0002-7476-7226
Turan Karahan(Elazığ Tarım ve Orman İl Müdürlüğü)0000-0002-2052-3138
Sayfa
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Yayın Tarihi
2026-05-19
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Sonuç olarak, elde edilen bulgular arpada verim ve kalite özelliklerinin genetik temellerini ortaya koymakta ve bu özelliklerin hedefe yönelik seleksiyon stratejileriyle birlikte geliştirilebileceğini göstermektedir.

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Amaç & Hipotez:Arpada verim ve kalite özellikleri üzerinde genotip × çevre etkileşimlerinin etkisi, ıslah programlarında güvenilir seleksiyon kriterlerinin belirlenmesini zorlaştırmaktadır.
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Temel Bulgular & Veri:Bu çalışma, verim ve kalite özelliklerine ilişkin genetik parametrelerin belirlenmesi amacıyla, 2013-2014 ve 2014-2015 yetiştirme sezonlarında, Adıyaman ve Diyarbakır lokasyonlarında değerlendirilen on iki arpa genotipi üzerinde yürütülmüştür.
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Sonuç & Katkı:Sonuç olarak, elde edilen bulgular arpada verim ve kalite özelliklerinin genetik temellerini ortaya koymakta ve bu özelliklerin hedefe yönelik seleksiyon stratejileriyle birlikte geliştirilebileceğini göstermektedir.
🔬Tür:Deneysel Tarla Denemesi
📍Kapsam:2013-2014 Verileri
⚙️Değişkenler:Barley · Heritability · Genetic parameters

Özet

Arpada verim ve kalite özellikleri üzerinde genotip × çevre etkileşimlerinin etkisi, ıslah programlarında güvenilir seleksiyon kriterlerinin belirlenmesini zorlaştırmaktadır. Bu çalışma, verim ve kalite özelliklerine ilişkin genetik parametrelerin belirlenmesi amacıyla, 2013-2014 ve 2014-2015 yetiştirme sezonlarında, Adıyaman ve Diyarbakır lokasyonlarında değerlendirilen on iki arpa genotipi üzerinde yürütülmüştür. İki lokasyonda gerçekleştirilen denemeler, farklı çevresel koşullar altında genetik varyasyonun ve özellikler arasındaki ilişkilerin güvenilir şekilde tahmin edilmesine olanak sağlamıştır. Varyans analizi sonuçları, genotip ve çevre etkilerinin yanı sıra belirgin genotip × çevre etkileşimlerinin varlığını ortaya koyarak, genotiplerin çevresel değişkenliğe farklı tepkiler verdiğini göstermiştir. β-glukan içeriği, başakta tane sayısı ve başakta tane ağırlığı; yüksek kalıtım derecesi ve genetik ilerleme değerleriyle çevresel etkilerden sınırlı düzeyde etkilenen özellikler olarak belirlenmiş ve erken ıslah generasyonlarında etkin seleksiyon için uygun özellikler olarak belirlenmiştir. Tane verimi ile başakta tane sayısı ve bin tane ağırlığı arasındaki güçlü pozitif ilişkiler, bu özelliklerin verim oluşumunda temel belirleyiciler olduğunu göstermiştir. Kalıtım derecesi, genetik ilerleme ve korelasyon analizlerinin birlikte değerlendirilmesi, değişken çevre koşulları altında seleksiyon etkinliği yüksek özelliklerin belirlenmesine olanak sağlamıştır. Sonuç olarak, elde edilen bulgular arpada verim ve kalite özelliklerinin genetik temellerini ortaya koymakta ve bu özelliklerin hedefe yönelik seleksiyon stratejileriyle birlikte geliştirilebileceğini göstermektedir.

Abstract

The influence of genotype × environment interactions on yield and quality traits in barley complicates the identification of reliable selection criteria in breeding programs. In this study, genetic parameters associated with yield and quality traits were determined in twelve barley genotypes evaluated across two growing seasons (2013-2014 and 2014-2015) at two locations, namely Adıyaman and Diyarbakır. The two-location approach enabled reliable estimation of genetic variability and trait associations under contrasting environmental conditions. Analysis of variance revealed significant effects of genotype and environment, as well as pronounced genotype × environment interactions, demonstrating differential genotype responses to environmental variability. β-glucan content, number of grains per spike, and grain weight per spike were found to be relatively independent of environmental effects, as evidenced by their high heritability and genetic advance values, indicating their suitability for effective selection in early breeding generations. Strong positive correlations between grain yield and both number of grains per spike and thousand grain weight identified the primary components contributing to yield formation. The combined evaluation of heritability, genetic advance, and correlation analyses enabled the identification of traits with high selection efficiency under variable environmental conditions. Overall, the results demonstrate the genetic basis of yield and quality traits in barley and confirm the feasibility of simultaneous improvement of these traits through targeted selection strategies in barley breeding programs.

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Bu Makaleye Atıf Yap

Türkay, C., Akgün, İ., Karahan, T. (2026). Arpada Verim ve Kalite Özelliklerinin Genetik Parametrelerinin ve Çevresel Tepkilerinin İncelenmesi. Research in Agricultural Sciences, Volume: 57 Issue: 2. https://doi.org/10.17097/agricultureatauni.1849949

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