Bazı Aspir (Carthamus tinctorius L.) Çeşitlerinin Kök ve Sap Ekstraklarının Allelopatik ve Ototoksik Etkilerinin Belirlenmesi

Year 2020, Volume: 30 Issue: 4, 801 - 809, 31.12.2020

Engin Kulan Nurgül Ergin , Mehmet Demir Kaya

https://doi.org/10.29133/yyutbd.694039

Abstract

Bu çalışma, bazı aspir (Carthamus tinctorius L.) çeşitlerinin (Asol, Balcı, Linas ve Olas) kök ve sap kısımlarından elde edilen farklı dozlardaki (Kontrol, 12.5, 25.0 ve 50.0 g/L) solüsyonların arpa (Hordeum vulgare) ve buğdayın (Triticum aestivum) çimlenme ve fide gelişimi üzerine allelopatik etkileri ile aspir üzerine ototoksik etkilerini belirlemek amacıyla yürütülmüştür. Çimlenme yüzdesi (%), çimlenme hızı (gün), kök ve sürgün uzunluğu (cm), fide yaş ve kuru ağırlığı (g/bitki) ile kuru madde oranı (%) incelenmiştir. Ayrıca hazırlanan solüsyonların elektriksel iletkenlik (EC) ve pH değerleri de belirlenmiştir. Araştırma sonuçlarına göre, sap solüsyonlarının EC değeri daha yüksek, pH değerleri ise daha düşük olduğu belirlenmiştir. Bitkilerin çimlenme yüzdesi ve hızında aspir çeşitlerine, bitki kısımlarına ve dozlara göre belirgin bir azalış veya artış elde edilmemiştir. Aspirde allelopatik ve ototoksik etkilerin sap kısmından kaynaklandığı, aspir köklerinin ise incelenen bitkiler üzerine etkisinin olmadığı tespit edilmiştir. Aspir çeşitlerinin allelopatik etkilerinin farklı olduğu ve Asol çeşidinin allelopatik ve ototoksik etkisinin daha az olduğu belirlenmiştir. Sonuç olarak, aspir saplarının buğday ve arpa bitkilerinin fide gelişimi üzerine allelopatik etkisinin olduğu, Asol ve Linas çeşitlerinin ise diğer çeşitlere göre daha az zararlı etkisinin olduğu söylenebilir.

Keywords

Carthamus tinctorius L., , allelopati, buğday, çimlenme, fide gelişimi

Determination of Allelopathic and Autotoxic Effects of Root and Stem Extracts of Some Safflower (Carthamus tinctorius L.) Varieties

Abstract

This study was carried out to determine the allelopathic effects of stem and root extracts with different doses (Control, 12.5, 25.0 and 50.0 g L-1) of some safflower (Carthamus tinctorius L.) cultivars (Asol, Balcı, Linas and Olas) on germination and seedling growth of barley (Hordeum vulgare) and wheat (Triticum aestivum) and autotoxic effects on safflower. Germination percentage (%), mean germination time (day), root and shoot length (cm), seedling fresh and dry weight (g plant-1) and dry matter (%) were investigated. Electrical conductivity (EC) and pH values of the prepared solutions were also measured. The results showed that higher EC and lower pH values in stem solution were determined. There was no significant decrease or increase in germination percentage and speed in the plants with respect to safflower cultivars, plant parts and doses. Allelopathic and autotoxic effects of safflower were resulted from the stems, while no significant effect of root solution was found the investigated plants. It was determined that allelopathic effects of the safflower cultivars were different and the least toxicity was detected in Asol. It was concluded that safflower stems had allelopathic effect on seedling growth of wheat and barley plants, Asol and Linas had less hazardous effect than other cultivars.

Keywords

Carthamus tintorious L., Allelopathy, wheat, germination, seedling growth

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