Bazı makarnalık buğday (Triticum turgidum L.) genotiplerinin çimlenme döneminde tuz stresine tepkileri
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Date
2015-03-06
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Uludağ Üniversitesi
Abstract
Bu çalışma U.Ü. Ziraat Fakültesi Tarla Bitkileri Bölümü’nde melezleme çalışmaları ve adaptasyon denemeleri ile ümitvar olduğu tespit edilmiş olan makarnalık buğday hatlarının çimlenme döneminde farklı tuz stresine tepkilerinin belirlenmesi amacıyla laboratuvar koşullarında yürütülmüştür. Araştırmada tanık olarak Gediz-75 buğday çeşidi ile Sham-1 x Japiga, Japiga x Gediz75 (44), Sham-1 x Santa, Bintepe x Gediz-75 (12), Ambral x Çakmak-79 (30), Sham-1 x Yavoras (12), Ambral x Çakmak-79 (26), Gediz-75 x Çakmak-79 (33) ve Ambral x Çakmak-79 (36) melezlemelerinden elde edilen 9 hat kullanılmıştır. Çalışmada beş farklı NaCl dozu (0, 50, 100, 150 ve 200 mM) ele alınmıştır. Deneme Tesadüf Parselleri Deneme Deseninde iki faktörlü ve 3 tekrarlamalı olarak yürütülmüştür. Araştırmada tohumlarda 12. ve 24. saatlerdeki su alım oranları, çimlenme oranları, sapçık uzunluğu, kökçük uzunluğu, sapçık ve kökçük kuru ağırlıkları gibi özellikler incelenmiştir. Elde edilen sonuçlar tuz uygulamalarının incelenen tüm özellikleri olumsuz etkilediğini göstermiştir. Genotiplerin tuz stresine tepkileri kökçük kuru ağırlığı hariç diğer özellikler bakımından farklı bulunmuştur. Genotip x tuz interaksiyonu ise sadece 24. saatteki su alım oranı ve çimlenme oranları açısından önemli çıkmıştır. Araştırmada ele alınan hatlar arasında Japiga x Gediz75 (44) ve Sham1 x Santa hatları çimlenme döneminde (200 mM NaCl dozunda çimlenme oranındaki azalma oranları sırasıyla %13 ve % 15) diğerlerine oranla tuz stresine toleranslı bulunmuştur.
This work has been conducted at laboratory to determine responses of some hard wheat genotypes to salt stress at germination period. Hard wheat genotypes were obtained from promising genotypes improved by inbreeding and adaptation studies conducted at Crop Field Department of Agriculture Faculty, Uludag University. Wheat variety Gediz-75 as a check and nine lines obtained from hybridization of Sham1 x Japiga, Japiga x Gediz75-(44), Sham1 x Santa, Bintepe x Gediz75(12), Ambral x Çakmak-79(30), Sham1 x Yavoras-12, Ambral x Çakmak-79(26), Gediz-75 x Çakmak-79(33) and Ambral x Çakmak-79(36) and five levels of NaCl (0, 50, 100, 150 and 200 mM) were used. The study was designed in a Randomized Complete Plot with two factors and three replications. The parameter examined in the experiment were water intake rate of seeds at twelfth and twenty-fourth hours, germination rate, plumula length, radicle length, dry weights of plumula and radicle. The results obtained indicated that salt treatments affected negatively all of the parameters examined. The responses of genotypes to salt stress were different in respect of all parameters expect radicle dry weight. Genotype x salt interaction was significant only for water intake rate of seed at twenty-fourth hour and germination rate. The responses of Japiga x Gediz75 (44), and Sham1 x Santa lines were more resistant to salt stress (reduction of germination rate are 13 % and 15 % at 200 mM NaCl, respectivelly) than the other genotypes examined at germination stage.
This work has been conducted at laboratory to determine responses of some hard wheat genotypes to salt stress at germination period. Hard wheat genotypes were obtained from promising genotypes improved by inbreeding and adaptation studies conducted at Crop Field Department of Agriculture Faculty, Uludag University. Wheat variety Gediz-75 as a check and nine lines obtained from hybridization of Sham1 x Japiga, Japiga x Gediz75-(44), Sham1 x Santa, Bintepe x Gediz75(12), Ambral x Çakmak-79(30), Sham1 x Yavoras-12, Ambral x Çakmak-79(26), Gediz-75 x Çakmak-79(33) and Ambral x Çakmak-79(36) and five levels of NaCl (0, 50, 100, 150 and 200 mM) were used. The study was designed in a Randomized Complete Plot with two factors and three replications. The parameter examined in the experiment were water intake rate of seeds at twelfth and twenty-fourth hours, germination rate, plumula length, radicle length, dry weights of plumula and radicle. The results obtained indicated that salt treatments affected negatively all of the parameters examined. The responses of genotypes to salt stress were different in respect of all parameters expect radicle dry weight. Genotype x salt interaction was significant only for water intake rate of seed at twenty-fourth hour and germination rate. The responses of Japiga x Gediz75 (44), and Sham1 x Santa lines were more resistant to salt stress (reduction of germination rate are 13 % and 15 % at 200 mM NaCl, respectivelly) than the other genotypes examined at germination stage.
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Keywords
Makarnalık buğday, NaCl, Çimlenme, Durum wheat, Germination
Citation
Doğan, R. ve Çarpıcı, E. B. (2015). "Bazı makarnalık buğday (Triticum turgidum L.) genotiplerinin çimlenme döneminde tuz stresine tepkileri". Uludağ Üniversitesi Ziraat Fakültesi Dergisi, 29(1), 47-55.