Ekmeklik Buğdaya Salisilik Asit Uygulamasının Çimlenme Döneminde Kuraklık Stresine Etkisinin Belirlenmesi
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Date
2022
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Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi
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Abstract
Tohum çimlenmesi ve fide oluşumu, bitki büyüme döngüsündeki en hayati aşamadır. Kuraklığa meyilli alanlarda, zayıf tohum çimlenmesi ve fide çıkışı başlıca problemlerdendir. Mevcut araştırma, iki ekmeklik buğday genotipine (DZ17-1 ve Empire Plus) farklı dozlarda salisilik asit uygulamasının çimlenme ve erken gelişim döneminde kuraklık stresine etkilerinin belirlenmesi amacıyla yürütülmüştür. Araştırma Şırnak Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümü laboratuvarında tesadüf parsellerinde faktöriyel deneme desenine göre dört tekrarlamalı olarak kurulmuştur. Çalışmada, ekmeklik buğday genotiplerinin tohumlarına 0, 0.5 ve 1 mM SA uygulanmıştır. Tohumlar 5 farklı kuraklık stresi (0, -0.25, -0.50, -0.75, -1 MPa PEG 6000 çözeltisi) ortamında çimlendirilmiştir. Koleoptil uzunluğu, kök uzunluğu, fide boyu, çimlenme hızı ve çimlenme gücü özellikleri incelenmiştir. Araştırma sonuçlarına göre; artan kuraklık stresi incelenen tüm özellikler üzerinde olumsuz etkiye sahip olmuştur. Kuraklık koşullarında sadece 0.5 mM SA uygulaması çimlenme hızı ve çimlenme gücü özelliklerinde artırıcı etkiye sahip olduğu görülmüştür. Empire Plus çeşidinin kuraklık stresine daha toleranslı olduğu belirlenmiştir.
Seed germination and seedling formation are the most important stages in the plant growth cycle. The main issues in drought-prone areas are poor seed germination and seedling emergence. The current study was conducted to determine the responses of two bread wheat genotypes (DZ17-1 and Empire Plus) to drought stress during germination and early development periods. A randomized plots factorial design with four replications was used in the laboratory of the Department of Field Crops, Faculty of Agriculture, Şırnak University. The seeds of bread wheat genotypes were treated with 0, 0.5, and 1 mM SA in the study. Seeds germinated in five different drought stress environments (0, -0.25, -0.50, -0.75, -1 MPa PEG 6000 solution). Coleoptile length, root length, seedling length, germination rate, and germination vigor were all measured. According to the findings, increased drought stress had a negative effect on all of the traits studied. In drought conditions, only 0.5 mM SA application had an increasing effect on germination rate and germination vigor properties. It was found that the Empire Plus cultivar was more drought tolerant.
Seed germination and seedling formation are the most important stages in the plant growth cycle. The main issues in drought-prone areas are poor seed germination and seedling emergence. The current study was conducted to determine the responses of two bread wheat genotypes (DZ17-1 and Empire Plus) to drought stress during germination and early development periods. A randomized plots factorial design with four replications was used in the laboratory of the Department of Field Crops, Faculty of Agriculture, Şırnak University. The seeds of bread wheat genotypes were treated with 0, 0.5, and 1 mM SA in the study. Seeds germinated in five different drought stress environments (0, -0.25, -0.50, -0.75, -1 MPa PEG 6000 solution). Coleoptile length, root length, seedling length, germination rate, and germination vigor were all measured. According to the findings, increased drought stress had a negative effect on all of the traits studied. In drought conditions, only 0.5 mM SA application had an increasing effect on germination rate and germination vigor properties. It was found that the Empire Plus cultivar was more drought tolerant.
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Abiyotik stres, Kök uzunluğu, Çimlenme hızı, PEG 6000, Abiotic stress, Root length, Germination rate, PEG 6000
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Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Volume
27
Issue
2
Start Page
315
End Page
322