ÜÇ EKMEKLİK BUĞDAY (TRITICUM AESTIVUM L.) MELEZİNDE KANTİTATİF ÖZELLİKLERİN KALITIMI I. Verim ve Verim Öğeleri

Bu çalışma, üç ekmeklik buğday melezinde (Golia x Cumhuriyet 75, Panda x Gönen, Seri 82 x Basribey 95) generasyon ortalamaları analizi ile verim ve verim öğelerinin kalıtımında rol oynayan gen etkilerini saptamak ve oluşturulan populasyonlarda uygulanabilecek seleksiyon yöntemlerini belirlemek amacıyla yapılmıştır. Oluşturulan populasyonlarda, elde edilen genetik parametreler değerlendirildiğinde; başakta başakçık sayısı, başakta tane sayısı, tek başak verimi, bin tane ağırlığı, fertil kardeş sayısı ve tane verimi bakımından dominantlık ve epistatik gen etkileri nedeniyle ileri generasyonlarda yapılacak seleksiyonun daha etkin olabileceği sonucuna varılmıştır. Öte yandan, başak boyu ve başakçıkta tane sayısı için seleksiyona başlama zamanı melez populasyonlara göre farklılık göstermiştir.

Anahtar Kelimeler:

Triticum aestivum L., verim ve verim öğeleri, kalıtım, generasyon ortalamaları analizi

Inheritance of Quantitative Characters in Three Wheat Crosses (Triticum aestivum L.) I. Yield and Yield Components

This study was designed to examine inheritance of yield, yield components and to determine appropriate selection methods based on gene effects at three populations (Golia x Cumhuriyet 75, Panda x Gönen, Seri 82 x Basribey 95) obtanied from crossing of six bread wheat varieties. On the established populations, when genetic parameters were evaluated; data suggested that selection in advanced generations might be effective for number of spikelets per spike, number of kernels per spike, single spike yield, thousand kernel weight, fertile tiller number, and grain yield because of dominance and epistatic effects. On the other hand, appropriate selection time differed from one cross population to another for spike length, and number of kernels per spikelet

Keywords:

Triticum aestivum L., yield and yield components, inheritance, generation mean analysis,

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