Optimization of auxin treatments and rooting media for the propagation of common lilac (Syringa vulgaris L.)

Öz

Common lilac (Syringa vulgaris L.) is an important landscape shrub used for both functional and aesthetic purposes in garden design. Therefore, it is important that it can be easily propagated. This study investigated the effects of various growing/rooting media and auxins on the rooting of lilac semi-hardwood cuttings. Perlite, peat, and equal mixtures of both were used as rooting media. The 1000 and 2000 ppm doses of both auxins indole-3-butyric acid (IBA) and naphthalene acetic acid (NAA) were applied to lilac cuttings. The callus formation and rooting rates, number of roots, root length, and fresh root weight were recorded. The highest callusing rate was observed with 2000 ppm IBA in a perlite medium (28.00%). The same medium and treatment yielded the highest rooting rate (27%). The longest root length (12.66 cm) was obtained from the perlite medium with 1000 ppm NAA. The highest number of roots (15.66 pieces) was observed from peat medium with 2000 ppm IBA and 1000 ppm NAA. The highest fresh root weight (3.63 g) was obtained from the perlite-peat mix with 1000 ppm IBA. In conclusion, the rooting success of lilac cuttings varied significantly depending on the growing medium and the hormone type/concentration combination.

Anahtar Kelimeler

• Indole-3-butyric acid
• Ornamental plant
• Peat
• Perlite
• NAA
• Naphthalene acetic acid

Leylak (Syringa vulgaris L.)’ın çoğaltımı için oksin ve köklenme ortamlarının optimizasyonu

Öz

Leylak çevre düzenlemesinde fonksiyonal ve estetik amaçlı kullanılan önemli bir peyzaj çalısıdır. Bu nedenle leylağın kolay ve pratik bir şekilde çoğaltılması önemlidir. Bu amaçla yürütülmüş olan bu çalışmada, bazı yetiştirme ortamlarının ve oksinlerin leylak (Syringa vulgaris L.) yarı odunsu çeliklerinin köklenmesi üzerindeki etkileri araştırılmıştır. Çalışmada perlit, torf ve her ikisinin eşit karışımı köklendirme ortamı kullanılmış ve çeliklere iki oksin türünün (İndol-3-bütirik asit ve Naftalin asetik asit) 1000 ve 2000 ppm dozları uygulanmış; kalluslenme ve köklenme oranları, kök sayısı ve uzunluğu ile kök taze ağırlığı özellikleri belirlenmiştir. Elde edilen sonuçlara göre en yüksek kalluslenme oranı, perlit ortamında 2000 ppm IBA uygulamasından (%28) elde edilmiştir. Aynı ortam ve uygulama köklenme oranı açısından da en başarılı (%27) sonucu vermiştir. En yüksek kök uzunluğu perlit ortamında 1000 ppm NAA uygulamasından (12.66 cm) elde edilmiştir. En yüksek kök sayısı 2000 ppm IBA ve 1000 ppm NAA uygulamalarıyla torf ortamında (15.66); en yüksek kök taze ağırlığı (3.63 g) ise perlit-torf karışımı ortamında 1000 ppm IBA uygulamasından elde edilmiştir. Sonuç olarak, leylak yarı odun çeliklerinin köklenme başarısının, kullanılan yetiştirme ortamına ve oksin türü/konsantrasyon kombinasyonuna bağlı olarak önemli ölçüde değiştiği görülmüştür.

Anahtar Kelimeler

• Indol-3- butirik asit
• Süs bitkisi
• Torf
• Perlit
• IBA
• Naftalin asetik asit

Kaynakça

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