AŞKIN GÖKTÜRK, ZAFER ÖLMEZ, Fatih TEMEL, Zeki YAHYAOĞLU

Bazı önişlemlerin iğde (Elaeagnus angustifolia L.) tohumlarının çimlenmesi üzerine etkileri

Bu çalısmada bazı ön islemlerin Elaeagnus angustifolia L. tohumlarının çimlenmesi üzerine etkisi arastırılmıstır. Akan suda (15 °C) 10 gün bekletme+ 30 gün soğuk katlama, tohum uçlarını 2 mm kesme + 7 gün suda bekletme ve farklı sürelerde soğuk katlama (20, 40 ve 60 gün) önislemleri uygulanmıstır. Ekimler, üç tekrarlı tesadüfi tam bloklar deneme desenine göre sera ve açık alan kosullarında gerçeklestirilmistir. Ekim zamanını takiben 90 gün boyunca gözlemler yapılmıs, çimlenme yüzdeleri ve çimlenme hızları belirlenmistir. En yüksek çimlenme yüzdesi (% 64.3) 10 gün akan suda (15 °C) bekletme + 30 gün soğuk katlama isleminde sera ortamında elde edilmistir. 60 gün soğuk katlama ve 10 gün akan suda (15 °C) bekletme + 30 gün soğuk katlama önislemlerinde en iyi çimlenme hızları (19 ve 23 gün) belirlenmistir. Genel olarak sera kosullarının çimlenme yüzdesi üzerine olumlu etkisi olduğu tespit edilmistir.

Anahtar Kelimeler:

çimlenme, tohum durgunluğu, Elaeagnus angustifolia, ön işlem

Effects of some pre-treatments on germination of russian olive (Elaeagnus angustifolia L.) seeds

This study was carried out to determine the effects of some pretreatments including cold stratification (20, 40 and 60 days), soaking in running water (15 °C) for 10 days + cold stratification for 30 days, and snipping off 2 mm at the seed ends on seed germination and how to overcome dormancy of Elaeagnus angustifolia L. seeds. The seeds were sown in polyethylene pots in the greenhouse and on seedbeds in outdoor conditions. The statistical design was a randomized complete block design with three replications. Germinated seeds were observed periodically during 90 days to determine germination percentage and germination rate. While the highest germination percentage (64.3 %) was obtained from seeds that were soaked in running water (15 °C) for 10 days + 30-day cold stratification pretreatment the best germination rates (19 and 23 days) were determined form 60-day cold stratification, and soaking in running water (15 °C) for 10 days + 30-day cold stratification pretreatments in the greenhouse.

Keywords:

germination, seed dormancy, Elaeagnus angustifolia, pretreatment,

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