Effect of Drought Stress on Germination and Seedling Growth of Common Vetch (Vicia sativa L.) Cultivars

Yıl 2023, Cilt: 10 Sayı: 3, 288 - 299, 27.11.2023

Hakan Çifçi Semih Açıkbaş

https://doi.org/10.19159/tutad.1319496

Öz

This study aimed to determine the germination and seedling development responses of common vetch (Vicia sativa L.) varieties under drought stress and identify sensitive/tolerant varieties. The study was conducted at the Laboratory of the Department of Field Crops, Faculty of Agriculture, Siirt University. Artificial drought stress was induced using polyethylene glycol (PEG-6000) material. The plant material for the study consisted of the following common vetch varieties: Görkem, Kralkızı, Özveren, Dicle, Alper, Doruk, Kubilay-82, D-135, IFVS-715, and Alınoğlu-2001. These varieties were germinated under different drought (PEG-6000) levels (0%, 5%, 10%, 15%, and 20%). The laboratory experiment was conducted with a randomized split-plot design, with four replications. In the research, parameters such as germination percentage, mean germination time, germination index, germination uniformity coefficient, radicle and hypocotyl length, lateral root number and length, seedling fresh and dry weights, and seedling vigor index were examined. Increasing drought levels significantly (p<0.01) affected germination and seedling characteristics of common vetch varieties. The effects of drought stress were observed from the 10% PEG level for germination percentage and from the 5% PEG concentration for all other parameters. According to the research findings, the tolerance of varieties to drought levels also varied. Among the common vetch varieties, Dicle, Alınoğlu-2001, and Kralkızı showed higher tolerance to drought in terms of germination and seedling development parameters compared to other varieties. Considering genotypic differences, the use of drought-resistant varieties is important in common vetch cultivation in drought-affected areas.

Anahtar Kelimeler

Common vetch, drought stress, germination percentage, germination index, seedling vigor index

Kuraklık Stresinin Yaygın Fiğ (Vicia sativa L.) Çeşitlerinin Çimlenme ve Fide Gelişimine Etkisi

Öz

Bu çalışmada, yaygın fiğ (Vicia sativa L.) çeşitlerinin kuraklık stresi altında çimlenme ve fide gelişim tepkilerinin belirlenmesi ve hassas/tolerant çeşitlerin ortaya konulması amaçlanmıştır. Çalışma; Siirt Üniversitesi, Ziraat Fakültesi, Tarla Bitkileri Bölümü Laboratuvarı’nda yürütülmüştür. Yapay kuraklık stresi, polietilen glikol (polyethylene glycol, PEG-6000) materyali ile sağlanmıştır. Çalışmanın bitkisel materyalini yaygın fiğin Görkem, Kralkızı, Özveren, Dicle, Alper, Doruk, Kubilay-82, D-135, IFVS-715 ve Alınoğlu-2001 çeşitleri oluşturmuştur. Bu çeşitler, farklı kuraklık (PEG-6000) seviyeleri (% 0, % 5, % 10, % 15 ve % 20) altında çimlendirilmiştir. Laboratuvar deneyi tesadüf parsellerinde bölünmüş parseller deneme desenine göre 4 tekrarlamalı olarak yürütülmüştür. Araştırmada; çimlenme yüzdesi, ortalama çimlenme süresi, çimlenme indeksi, çimlenme üniformite katsayısı, kökçük ve sapçık uzunluğu, lateral kök sayısı ve uzunluğu, fide yaş ve kuru ağırlıkları ile fide güç indeksi parametreleri incelenmiştir. Kuraklık seviyesindeki artış, yaygın fiğ çeşitlerinde çimlenme ve fide özelliklerini çok önemli (p<0.01) derecede etkilemiştir. Kuraklık stresinin etkileri çimlenme yüzdesinde % 10 PEG seviyesinde, diğer tüm parametrelerde % 5 PEG konsantrasyonundan itibaren gözlemlenmiştir. Araştırma sonucuna göre kuraklık seviyelerine karşı çeşitlerin gösterdiği stres toleransı da farklılık göstermiştir. Yaygın fiğ çeşitlerinden Dicle, Alınoğlu-2001 ve Kralkızı çeşitleri, çimlenme ve fide gelişim parametreleri açısından kuraklığa diğer çeşitlere göre daha toleranslı olmuştur. Kuraklık yaşanan alanlarda, yaygın fiğ yetiştiriciliğinde genotipik farklılık dikkate alınarak kuraklığa dayanıklı çeşitlerin kullanılması önem taşımaktadır.

Anahtar Kelimeler

Yaygın fiğ, kuraklık stresi, çimlenme yüzdesi, çimlenme indeksi, fide güç indeksi

Kaynakça

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