Heterosis for Certain Yield and Quality Traits in Winter Triticale

Year 2007, Volume: 20 Issue: 1, 83 - 86, 01.06.2007

E. Aydogan Cıfcı K. Yagdı

Abstract

This research investigated heterosis for certain yield and quality traits in F1 hybrids in winter triticale.The highest level of mid-parent heterosis was determined as 20.95 % for seed weight per spike. This was followed by mean mid-parent heterosis values at the rates of 18.07 % and 17.64 % for protein content and spike lenght, respectively. Negative mid- parent heterosis was determined in falling number and plant height with the mean values of – 7.09 % and – 3.93 %, respectively. When the hybrids were evaluated individually, it was determined that the traits other than protein content exhibited positive or negative heterosis, whereas for protein content, heterosis was always positive. The fact that some hybrids overrun their superior parents with respect to high-parent heterosis indicated that hybrid breeding could successfully be applied in triticale.

Keywords

Heterosis, yield, quality, triticale

Tritikale’de Bazı Verim ve Kalite Özelliklerinde Heterosis

Abstract

Bu araştırmada triticale F1 melezlerinde bazı verim ve kalite özellikleri bakımından melez gücü incelenmiştir. Anaçlar ortalamasına göre, en yüksek heterosis değeri %20,95 ile başakta tane ağırlığı özelliğinde saptanmıştır. Bunu %18,07 ve %17,64 heterosis değerleri ile sırasıyla protein içeriği ve başak boyu özellikleri izlemiştir. Anaçlar ortalamasına göre negatif heterosis % -7,09 ve % - 3,93 değerleri ile düşme sayısı (falling number) ve bitki boyunda belirlenmiştir. Melezler bireysel olarak incelendiğinde; protein içeriğinde sürekli pozitif melez gücü saptanırken, diğer özelliklerde pozitif ve negatif melez gücü saptanmıştır. Bazı melezlerin üstün anaca göre melez azmanlığı göstermesi tritikale’de hibrid ıslahının başarılı bir şekilde uygulanabileceğini göstermiştir

Keywords

Heterosis, Verim, Kalite, Triticale

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