Ekim Öncesi Farklı Tohum Uygulamalarının Daphne oleoides Schreb.’de Çıkış Özellikleri Üzerine Etkileri

Abstract

Çalışma 2019 yılında Antalya ilinden toplanan Daphne oleoides tohumlarında soğuk katlama ile birlikte farklı priming uygulamalarının çıkış özellikleri üzerine etkisini araştırmak amacıyla kurulmuştur. Tohumlar 3×25 tekerrür×tohum olacak şekilde petri kaplarında 5 farklı priming uygulaması sonrasında (Hidropriming (kontrol), 500 ppm GA₃, %1 KNO₃, ZnO+Ca, ZnO+K (nanopriming)) +4°C’de 90 gün boyunca bekletilmiştir. Uygulamalar sonucunda çıkış oranı ve ortalama çıkış süreleri saptanmıştır. En yüksek çıkış oranı %47 ile 70 günde 500 ppm ve %33 ZnO+K uygulamasında, en düşük çıkış oranı ise %4 ile KNO₃ uygulaması ile 110 günde belirlenmiştir. En iyi fide gelişiminin ZnO+Ca nanopriming uygulamasında olduğu gözlemlenmiştir.

Keywords

• Dafne
• GA3
• ZnO
• nanopriming
• fide

Effects of Different Pre-Sowing Seed Treatments on Emergence Characteristics of Daphne oleoides Schreb.

Abstract

This study was conducted in 2019 to investigate the effects of different priming treatments combined with cold stratification on the germination characteristics of Daphne oleoides Schreb seeds collected from Antalya province. Seeds were placed in petri dishes at a ratio of 3 x 25 replicates x seeds and incubated at +4°C for 90 days. The treatments were classified as follows: hydropriming (control), hormonal priming (500 ppm GA₃), osmopriming (1% KNO₃), and nanopriming (ZnO+Ca and ZnO+K). Emergence rates, mean emergence times and seedling survival rate were determined. The highest emergence rate was 47% in 70 days with the 500 ppm and 33% ZnO+K treatments, while the lowest was 4% with the KNO₃ treatment in 110 days. The best seedling development was observed with the ZnO+Ca nanopriming treatment.

Keywords

• Dafne
• GA3
• ZnO
• nanopriming
• seedling

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