Influence of Zn seed priming and coating on germination and seedling growth in wheat

Year 2020, Volume: 35 Issue: 2, 259 - 267, 15.06.2020

Mohaned Mohammed Erkut Pekşen

https://doi.org/10.7161/omuanajas.745891

Abstract

In this study, the effect of seeds priming (2.5 and 5 mM) and coating (1.5, 2.5 and 5 g Zn/kg seeds) on early growth stages of two wheat varieties showing difference for their seed Zn contents (Imam with average 29 mg/kg Zn and Altındane 25.5 mg/kg Zn) on germination and seedling growth parameters were determined under controlled-growth chamber conditions 20-25°C and 70% RH. In each treatment, 25 seeds were placed into Petri dishes to determine seed germination and sown into pots containing 700 g alluvial soil with low Zn content to monitor seedling growth for 21 days using three replications. The results revealed that seed priming with Zn, particularly high dose (5 mM) had relatively positive impact on seed germination, mean germination time and seedling growth parameters when compared with low Zn dose (2.5 mM) and hydropriming in both two wheat varieties. Seed coating with Zn, particularly with low Zn concentration (1.5 g Zn/kg seeds) and in Altındane with less Zn content, has shown good respond and improved seed germination parameters in comparison with untreated seeds for both wheat varieties. In conclusion, Zn seed priming and coating had more evident effects on germination and seedling growth parameters in variety with low Zn content compared with high one. The lowest concentration of seed coated with Zn of 1.5 g Zn/kg seeds had positive impact on wheat seedlings growth as well as it has low cost and safe to prevent of environment pollution.

Keywords

Wheat, Germination, Zn seed priming, Zn seed coating, Seedling growth

Supporting Institution

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Project Number

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Thanks

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Ekim öncesi tohumlara Zn ile ön uygulama ve tohum kaplamanın buğdayda çimlenme ve fide gelişimine etkileri

Abstract

Bu çalışmada, Zn ile tohum ön uygulamaları (2.5 ve 5 mM) ve tohum kaplamanın (1.5, 2.5 ve 5 g Zn/kg tohum), çinko içerikleri bakımından farklılıklar gösteren Imam (29 mg/kg Zn) ve Altındane (25.5 mg/kg Zn) buğday çeşitlerinde erken büyüme dönemlerinde, tohumların çimlenmesi ve fide büyüme parametreleri üzerine etkileri 20-25°C sıcaklık ve %70 oransal neme sahip kontrollü büyüme odası koşullarında belirlenmiştir. Her uygulamada, tohum çimlenmesini belirlemek için petri kaplarına ve 21 gün boyunca fide büyümesini izlemek için düşük Zn içeriğine sahip 700 g alüvyonlu toprak içeren saksılara üç tekrarlamalı olarak 25’er tohum ekilmiştir. Sonuçlar, düşük dozda (2.5 mM) Zn ile tohum ön uygulama ve destile su ile tohum ön uygulama işlemleriyle karşılaştırıldığında, Zn ile özellikle yüksek dozda (5 mM) tohum ön uygulama işleminin tohumların çimlenme oranı, ortalama çimlenme süresi ve fide büyümesi parametreleri üzerinde her iki buğday çeşidinde de olumlu bir etkiye sahip olduğunu göstermiştir. Zn ile tohum kaplaması, özellikle düşük Zn konsantrasyonlu tohum kaplaması (1.5 g Zn/kg tohumlar) ve daha az Zn içeriğine sahip Altındane çeşidinde olmak üzere, her iki buğday çeşidinde de muamele edilmemiş tohumlara oranla daha iyi tepki vermiş ve çimlenme parametrelerinde artış göstermiştir. Sonuç olarak, tohumların ekim öncesi Zn ile ön uygulamaya ve kaplamaya tabi tutulması, düşük Zn içeriğine sahip çeşitte yüksek olana kıyasla çimlenme ve fide büyüme parametreleri üzerinde daha belirgin etkiye sahip olmuştur. En düşük oranda çinko ile tohum kaplama (1.5 g Zn/kg tohum) buğday fidelerinin gelişimi üzerine olumlu etkileri yanı sıra düşük maliyetli ve çevre kirliliğini önleme bakımından güvenli olmuştur.

Keywords

Buğday, Çimlenme, Zn ön uygulama, Zn tohum kaplama, Fide gelişimi

Project Number

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