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Effects of Peg-Induced Drought Stress on Germination and Seedling Performance of Bread Wheat Genotypes

Year 2019, Volume: 29 Issue: 4, 765 - 771, 31.12.2019
https://doi.org/10.29133/yyutbd.595627

Abstract

This study was conducted to determine the response of some bread wheat genotypes to drought stress during germination and seedling growth stages. Two bread wheat cultivars (Karatopak and Sagittoria) and three advanced breeding lines (SERI.1B*2/3KAUZ*2BOW//KAUZ, 89N2090/WERAVER// SW91.4903 and STAR’S’KAUZ’S’s) were used as the seed material. Three different doses of Polyethylene Glycol (Control, -0.6 MPa and -1.2 MPa of PEG-6000) were used to generate drought stress in germination and seedling growth stages of bread wheat. Germination experiments were carried out in petri dishes placed into an incubator with 4 replications in completely randomized factorial design. Seedling emergence experiments were carried out in plastic containers filled with a mixture of sand and peat placed into a growth cabinet with 3 replications in factorial arrangement of CRD. Germination experiments showed that genotype, PEG and genotype x PEG interactions were significant for examined traits except for germination rate. In the seedling experiments, genotype, PEG and genotype x PEG interaction were significant for all parameters, except for mean emergence time. Generally, increased doses of PEG caused remarkable decreases in all examined traits, but increase in mean germination time and mean emergence time. As the PEG doses increased, genotypes responded differently with regard to examined traits in germination and seedling emergence of bread wheat genotypes. It can be concluded that PEG-6000 was useful agent to create drought stress in germination and seedling growth of bread wheat, but greater doses and osmotic potentials lower than -1.2 MPa could be applied to better determine the drought stress tolerance of bread wheat genotypes. 

References

  • Almansouri M, Kinet JM, Lutts, S (2001). Effect of Salt and Osmotic Stresses on Germination in Durum Wheat (Triticum durum Desf.). Plant and Soil, 231: 245–256.
  • Anonymous (2017). Turkish Statistical Institute, Avaliable: http://www.tuik.gov.tr/ Access time, June, 2017.
  • Atak M, Mavi K, Uremis İ (2016). Bio-herbicidal Effects of Oregano and Rosemary Essential Oils on Germination and Seedling Growth of Bread Wheat Cultivars and Weeds. Romanian Biotechnological Letters, 21 (1): 11149-11159.
  • Balkan A, Gençtan T (2013). Effect of Osmatic Stress on Germination and Early Growth in Bread Wheat (Triticum aestivum). Journal of Tekirdag Agricultural Faculty, 10 (2); 44-52.

PEG Kaynaklı Kuraklık Stresinin Ekmeklik Buğday Genotiplerinin Çimlenme ve Fide Gelişim Performansına Etkisi

Year 2019, Volume: 29 Issue: 4, 765 - 771, 31.12.2019
https://doi.org/10.29133/yyutbd.595627

Abstract

Bu çalışma, bazı ekmeklik buğday genotiplerinin çimlenme ve fide gelişim aşamalarında kuraklık stresine tepkisini belirlemek amacıyla yapılmıştır. Tohum materyali olarak iki ekmeklik buğday çeşidi (Karatopak ve Sagittoria) ve üç adet ileri buğday ıslah hattı (SERI.1B*2/3KAUZ*2BOW//KAUZ, 89N2090/WERAVER//SW91.4903, ve STAR’S’KAUZ’S’) kullanılmıştır. Ekmeklik buğdayın çimlenme ve fide gelişim aşamalarında kuraklık stresi oluşturmak için üç farklı dozda Polietilen Glikol (Kontrol, -0.6 MPa ve -1.2 MPa, PEG-6000) kullanılmıştır. Çimlendirme denemeleri tesadüf parselleri deneme deseninde faktöriyel düzende 4 tekrarlamalı olarak petri kaplarında, fide gelişimi denemeleri ise plastik kaplarda tesadüf parselleri deneme deseninde faktöriyel düzende 3 tekrarlamalı olarak yürütülmüştür. Ekmeklik buğday genotipleri, çimlenme ve fide gelişimi deneylerinde PEG'in neden olduğu kuraklık stresine tolerans açısından buğday genotipleri test edilmiştir. Çimlenme denemelerinin sonucunda, çimlenme oranı dışında, incelenen tüm özellikler için genotip, PEG ve genotip x PEG interaksiyonlarının önemli olduğunu belirlenmiştir. Fide gelişimi denemelerinde ise genotip, PEG ve genotip x PEG etkileşimi, ortalama çıkış süresi hariç tüm parametreler için önemli olmuştur. Genel olarak, artan PEG dozları incelenen tüm özelliklerde belirgin düşüşlere neden olmuş, ancak ortalama çimlenme süresi ve ortalama çıkış süresi uzamıştır. PEG dozları arttıkça, ekmeklik buğday genotiplerinin çimlenme ve fide gelişimindeki incelenen özelliklere göre farklı oranda tepkiler vermiştir. PEG-6000'in, ekmeklik buğdayın çimlenme ve fide gelişiminde kuraklık stresi yaratmada yararlı bir ajan olduğu sonucuna varılabilir, ancak ekmeklik buğday genotiplerinin kuraklık stres toleransını daha iyi belirlemek için -1.2 MPa'dan daha düşük ozmotik potansiyeller uygulanmalıdır.

References

  • Almansouri M, Kinet JM, Lutts, S (2001). Effect of Salt and Osmotic Stresses on Germination in Durum Wheat (Triticum durum Desf.). Plant and Soil, 231: 245–256.
  • Anonymous (2017). Turkish Statistical Institute, Avaliable: http://www.tuik.gov.tr/ Access time, June, 2017.
  • Atak M, Mavi K, Uremis İ (2016). Bio-herbicidal Effects of Oregano and Rosemary Essential Oils on Germination and Seedling Growth of Bread Wheat Cultivars and Weeds. Romanian Biotechnological Letters, 21 (1): 11149-11159.
  • Balkan A, Gençtan T (2013). Effect of Osmatic Stress on Germination and Early Growth in Bread Wheat (Triticum aestivum). Journal of Tekirdag Agricultural Faculty, 10 (2); 44-52.
There are 4 citations in total.

Details

Primary Language English
Subjects Agronomy
Journal Section Articles
Authors

Didem Bilgili This is me 0000-0002-7874-8233

Mehmet Atak 0000-0003-1196-0413

Kazım Mavi 0000-0003-0195-8539

Publication Date December 31, 2019
Acceptance Date December 2, 2019
Published in Issue Year 2019 Volume: 29 Issue: 4

Cite

APA Bilgili, D., Atak, M., & Mavi, K. (2019). Effects of Peg-Induced Drought Stress on Germination and Seedling Performance of Bread Wheat Genotypes. Yuzuncu Yıl University Journal of Agricultural Sciences, 29(4), 765-771. https://doi.org/10.29133/yyutbd.595627
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Yuzuncu Yil University Journal of Agricultural Sciences by Van Yuzuncu Yil University Faculty of Agriculture is licensed under a Creative Commons Attribution 4.0 International License.