Allelopathic Effects of Flower Extract of Oleander (Nerium oleander) on the Germination of Seed and Seedling Growth of Lolium multiflorum

Yıl 2018, Cilt: 8 Sayı: 1, 309 - 3017, 31.03.2018

Ömer Suha Uslu , Osman Gedık Ali Rahmi Kaya Muhammad Azim Khan Mustafa Nur Tassever Etem Turkkaya

https://doi.org/10.21597/jist.407890

Cited By: 2

Öz

An experiment on the allelopathic effects of Nerium oleander on germination and growth of Italian

ryegrass (Lolium multiflorum Lam) was conducted at the Kahramanmaras Sutcu Imam University, Faculty of

Agriculture, Department of Field Crops Laboratory during January 2017. The experiment was laid out in completely

randomized design (CRD) with three replications. Four concentrations of oleander flower extract i.e control, 10,

20 & 40 g L-1 were used in this experiment. The experiment was performed in climatic cabinet having 20 oC

temperature. The seeds were kept for 14 days and then different attributes were studied such as germination %,

seedling length, radicle length, plumule length, seedling fresh and dry weight and seed vigor index. All the studied

parameters were significantly affected by oleander flower extract concentrations. Results showed that maximum

germination %, seedling length, radicle length, plumule length, seedling fresh and dry weight and highest seed

vigor index was recorded in control treatment. While minimum values for all the above mentioned parameters were

observed at 40 g L-1 of extract concentration. It indicated that Nerium oleander flower extract suppress growth of

Italian ryegrass and thus can be used for the control of Italian ryegrass in the crops. However, all other factors need

to be studied for sustainability.

Anahtar Kelimeler

Allelopathy, Germination, Lolium multiflorum, Nerium oleander extract

Zakkum (Nerium oleander) Çiçek Ekstraktının Lolium multiflorum’un Tohum Çimlenmesi ve Fide Gelişimi Üzerine Allelopatik Etkileri

Öz

Tek yıllık çimin (Lolium multiflorum Lam.) çimlenme ve gelişimi üzerine zakkum (Nerium oleander)

çiçeklerinin allelopatik etkisini belirlemek üzere yapılan bu çalışma, Kahramanmaraş Sütçü İmam Üniversitesi,

Ziraat Fakültesi, Tarla Bitkileri Bölümü Laboratuvarında 2017 Ocak ayında yürütülmüştür. Deneme tesadüf parselleri

deneme desenine göre 3 tekerrürlü olarak kurulmuştur. Çalışmada 4 farklı zakkum çiçeği ekstraktı (kontrol, 10, 20

ve 40 g/lt) kullanılmıştır. Araştırma iklimlendirme kabininde 20 oC’de gerçekleştirilmiştir. Tohumlar 14 gün süre

ile çimlendirmeye tabi tutulmuş daha sonra; çimlenme oranı, fide uzunluğu, radikula uzunluğu, plumula uzunluğu,

fide yaş ve kuru ağırlığı ve vigor indeks gibi temel belirleyici çimlenme ve fide gelişimi unsurları ölçülmüştür.

İncelenen tüm özellikler farklı konsantrasyonlardaki zakkum çiçek ekstraktlarından önemli derecede etkilenmiştir.

En yüksek çimlenme oranı, fide uzunluğu, radikula uzunluğu, plumula uzunluğu, fide yaş ve kuru ağırlığı ve en

yüksek vigor indeks değerleri kontrol uygulamasında elde edilmiştir. Yine aynı özellikler için en düşük değerler

40 g/lt konsantrasyonunda elde edilmiştir. Zakkum çiçek ekstraktının tek yıllık çimin gelişimini baskı altına aldığı

buna bağlı olarak tarım alanlarında tek yıllık çimin kontrol altına alınmasında kullanılabileceği görülmektedir.

Ayrıca sürdürülebilirlik açısından bu alanda diğer tüm faktörlerle ilgili çalışmalar da yapılmalıdır.

Anahtar Kelimeler

Allelopati, çimlenme, Lolium multiflorum, Nerium oleander ekstraktı

Kaynakça

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