The Population Vigors of Diallel F4 Offsprings of Six Bread Wheat Genotypes for Grain Yield under Irrigated and Rain-Fed Conditions

Year 2014, Volume: 20 Issue: 4, 446 - 453, 16.10.2014

Mustafa Yıldırım , Mustafa Çakmak

https://doi.org/10.15832/tbd.27218

Cited By: 3

Abstract

Grain yield estimate from early segregating populations is an interesting feature of today’s wheat breeding programs, and F populations are generally recommended as the most suitable population by researchers. In the present study, we evaluated the population vigor of diallel F offsprings of six bread wheat genotypes (Sultan, Bezostaya, Süzen, Harmankaya, Altay and Gerek) under irrigated (IR) and rain-fed conditions (RF). The experiment as two sets under IR and RF were established in the field of Anatolian Agricultural Research Institute, Eskişehir. The mean of grain yield (5468 kg ha) of F populations in RF and IR had been lower than the mean of genotypes (5654 kg ha). The mean of grain yield of genotypes (7062 kg ha) under IR was higher than F populations (6703 kg ha), while genotypes and Fpopulations were nearly similar under RF (4246 kg haand 4234 kg ha, respectively). The mid-variety population vigor for grain yield varied from -6.70% (Hrm/Grk) to 8.77% (Bez/Grk) under RF, and from -22.58% (Sltn/Alty) to 10.87% (Bez/Süzen) under IR. There was not positive significance population vigor in Fs. According to results under RF and IR, F populations are observed as the most suitable populations for realistically estimation of grain yield performance of populations.

Keywords

Wheat, Population vigor, Grain yield, F4 offspring

Altı Ekmeklik Buğday Genotipinin Diallel F4 Melez Döllerinde Sulu ve Yağmura Dayalı Koşullar Altında Populasyon Güçleri

Abstract

Erken dönemde açılan populasyonlardan verim tahmini yapmak günümüz ıslah programlarında ilgi çekici bir özellik olup, genellikle F1 populasyonlarının bu amaçla kullanımı araştırmacılar tarafından önerilir. Sunulan bu çalışmada, yağmura dayalı (RF) ve sulu şartlar altında (IR) altı ekmeklik buğdayın (Sultan, Bezostaya, Süzen Harmankaya, Altay ve Gerek) diallel F4 melez döllerinde populasyon güçleri değerlendirilmiştir. Deneme, IR ve RF şeklinde iki set olarak Eskişehir Anadolu Tarımsal Araştırma Enstitüsü arazisinde kurulmuştur. RF ve IR’deki F4 populasyonlarının dane verim ortalamaları (5468 kg ha-1) çeşitlerin ortalamasından daha düşüktü (5654 kg ha-1). IR’de çeşitlerin dane verimi ortalaması (7062 kg ha-1) F4 populasyonlarından  (6703 kg ha-1) yüksek çıkarken, RF altında hemen hemen yakın çıkmıştır (sırası ile 4246 kg ha-1 and 4234 kg ha-1). Dane verimi açısından ebeveyn ortalamasına göre populasyon gücü RF altında -6.70% (Hrm/Grk) ve 8.77% (Bez/Grk) arasında değişirken, IR altında -22.58% (Sltn/Alty) ve 10.87% (Bez/Süzen) arasında değişmiştir. F4 populasyonlarına ait populasyon güçlerinin hiç birinde pozitif önemli bir sonuç çıkmamıştır. RF ve IR altındaki sonuçlara göre, F4 populasyonlarının gerçekçi dane verim performansı tahmini için en uygun populasyonlar olduğu gözlenmektedir.

Keywords

Populasyon gücü, Dane verimi, F4 melez dölü

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