Ferhat AVCI, OĞUZHAN ÇALIŞKAN, Fulya UZUNOĞLU

Safari Sunset ve Gold Strike protea çeşitlerinin çiçek kalitesi ile vazo ömrü üzerine uç alma ve üre uygulamalarının etkileri

Amaç: Bu çalışma, Safari Sunset ve Gold Strike protea çeşitlerinin çiçek kalitesi ve vazo ömrü üzerine uç alma ve üre uygulamalarının etkilerini belirlemek amacıyla yürütülmüştür. Yöntem ve Bulgular: Çalışmada, protea çeşitlerinde sürgün uzunlukları 15 cm, 20 cm ve 25 cm uzunluğa geldiğinde sürgün ucundan 3 cm’lik yumuşak uç alma yapılmıştır. Ayrıca, yapraktan %0.5 ve %1’lik üre uygulamaları gerçekleştirilmiştir. Bu uygulamaların, protea çeşitlerinin çiçek kalitesine, gonca iriliğine, çiçek rengine ve vazo ömrüne etkileri incelenmiştir. Gold Strike çeşidi en yüksek çiçek kalitesine, 2. ve 3. sınıf, UA1xÜ1 (sırasıyla, %33.33 ve 40.74) ve UA1xÜ2 (sırasıyla, %51.85 ve %51.84) uygulamalarında sahip olmuştur. Safari Sunset çeşidinde 1. kalite sınıf çiçekler en fazla UA3xÜ2 ve UA1xÜ2 uygulamalarından (sırasıyla %50.00 ve %45.45) elde edilmiştir. Her iki çeşitte de, vazo ömrünün UA1xÜ1 ve UA1xÜ2 uygulamalarında (sırasıyla, 18.2 gün ve 16.0 gün) kontrole göre (13.3 gün) daha uzun olduğu tespit edilmiştir. Genel Yorum: Çalışma sonucunda, proteaların çiçek kalitesi ve vazo ömrünün çeşidin genetik yapısı başta olmak üzere uç alma (UA) ve üre (Ü) uygulamaları tarafından farklı düzeylerde etkilendiği saptanmıştır. Çalışmanın Önemi ve Etkisi: Sonuç olarak, protea çeşitlerinde, kaliteli çiçek elde etmek amacıyla hem uç almanın hem de üre uygulamalarının faydalı olacağı söylenebilir.

Effects of pinching and urea applications on flower quality and vase life of Safari Sunset and Gold Strike cultivars of protea

Aims: This study was carried out to determine the effects of pinching and urea applications on flower quality and vase life of Safari Sunset and Gold Strike protea cultivars. Methods and Results: In the study, the protea cultivars were pinched at the 3 cm soft pinching of shoot tip when the shoot length of the cultivars was reached to 15 cm, 20 cm and 25 cm. In addition, 0.5% and 1% urea were applied to the leaves. The effects of these applications on flower quality, flower size, flower color and vase life of protea cultivars were investigated. Gold Strike cultivar had the highest flower quality, 2nd and 3nd class, in P1xU1 (33.33% and 40.74% respectively) and P1xU2 51.85% and 51.84% respectively) applications. The first quality flowers in Safari Sunset were obtained from P3xU2 and P1xU2 applications (50.00% and 45.45% respectively). In both cultivars, the longest vase life determined in UA1xU1 and P1xU2 applications (18.2 days and 16.0 days, respectively) compared with control plants (13.3 days). Conclusions: In the results of the study, the flower quality and vase life of the proteas were affected at different levels by pinching (P) and urea (U) applications, especially the genetic structure of the cultivars. Significance and Impact of the Study: As a result, pinching and urea applications will be beneficial in order to obtain high quality flowers in protea cultivars.

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