Sardunyada (Pelargonium sp.) Çiçeklenme ve Çiçek Kalitesi Üzerinde AC Fosfataz Gen Bölgesi Tanımlanan Rizobakteri (PGPR) Suşlarının Etkileri

Year 2024, Volume: 20 Issue: Özel Sayı, 380 - 391, 23.12.2024

Akife Dalda Şekerci , Emel Ünlü

https://doi.org/10.58816/duzceod.1559833

Abstract

Son yıllarda sardunya (Pelargonium sp.), Türkiye de dahil olmak üzere dünya genelinde en popüler ve yaygın olarak yetiştirilen çiçekli saksı bitkilerinden biri haline gelmiştir. Sardunya yetiştiriciliğinde temel hedeflerden biri, yüksek kaliteli ve sürekli çiçeklenmenin sağlanmasıdır. Fosfor, çiçek kalitesinde önemli bir rol oynar. Toprakta yeterli miktarda fosfor bulunmasına rağmen, bitkiler tarafından alınabilir kısmı oldukça sınırlıdır. Toprak bakterileri, bu kullanılmayan fosforu çözerek bitkilerin alabileceği hale getirebilir. Bu çalışma, AC Fosfataz gen bölgeleri ile tanımlanan Bacillus megaterium ve Pseudomonas putida rizobakteri suşlarının sardunyaların çiçeklenmesi ve çiçek kalitesi üzerindeki etkilerini belirlemeyi amaçlamıştır. Sonuçlar, rizobakteri uygulamalarının sardunyaların çiçeklenme ve çiçek kalitesi üzerinde olumlu etkiler sağladığını göstermiştir. PGPR uygulamaları ile sardunya fidelerinde çiçeklenme iki hafta erken gerçekleşmiş ve kontrol grubuna kıyasla bitki boyu, dal sayısı, yaprak sayısı ve alanı, çiçek salkımı sayısı ve salkım başına düşen çiçek sayısında önemli artışlar gözlemlenmiştir. Ayrıca, yapraklardan yapılan protein izolasyonları, morfolojik özelliklerin yanı sıra protein profillerinin de olumlu etkilendiğini göstermiştir. Sonuç olarak, bulgular rizobakteri uygulamasının sardunyaların çiçeklenme, çiçek kalitesi ve protein profilleri üzerinde önemli olumlu etkiler sağladığını ortaya koymuştur. Rizobakteri ve benzeri biyostimulantların tarımda kullanımı, çevre dostu ve sürdürülebilir tarımsal üretime katkı sağlayarak, süs bitkileri de dahil olmak üzere bahçe bitkileri üretimini iklim değişikliğine daha dayanıklı hale getirebilir.

Keywords

Süs bitkileri, Pelargonium, PGPR, protein profili

Ethical Statement

The authors have no conflicts of interest to declare

Supporting Institution

Erciyes Üniversitesi

Thanks

VIII. Ulusal Süs Bitkileri Kongresi

Effects of AC Phosphatase Gene-Identified Rhizobacteria (PGPR) Strains on Flowering and Flower Quality in Geranium (Pelargonium sp.)

Abstract

In recent years, geraniums (Pelargonium sp.) have become one of the most popular and widely cultivated flowering potted plants worldwide, including in Turkey. One of the primary goals in geranium cultivation is to achieve high-quality and continuous flowering. Phosphorus plays a crucial role in flower quality. Although phosphorus is sufficiently present in soils, only a small fraction is available for plant uptake. Soil bacteria can solubilize this unavailable phosphorus, making it accessible to plants. This study aimed to determine the effects of Bacillus megaterium and Pseudomonas putida rhizobacteria, identified by their AC Phosphatase gene regions, on the flowering and flower quality of geraniums. The results showed that rhizobacteria applications positively impacted flowering and flower quality in geraniums. Flowering occurred two weeks earlier in the treated geranium seedlings, and significant increases were observed in plant height, branch number, leaf number and area, inflorescence number, and the number of flowers per inflorescence compared to the control group. Additionally, protein isolation from leaves indicated that, besides morphological traits, protein profiles were also positively affected. In conclusion, the findings demonstrate that rhizobacteria have significant positive effects on flowering, flower quality, and protein profiles in geraniums. The use of rhizobacteria and similar biostimulants in agriculture can contribute to environmentally friendly and sustainable agricultural production, potentially making horticultural production, including ornamental plants, more resilient to climate change.

Keywords

Ornamental plants, Pelargonium, PCPR, protein profile

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