Zea mays L.'nin termik santral uçucu kül uygulamalarına karşı ekofizyolojik tepkileri

Abstract

Termik santral uçucu külü, bir termik santralde kömür yakılarak üretilen en önemli atık olduğu için bu tür enerji üretiminin en önemli endişelerinden biridir. Bu tür uçucu kül, konsantrasyona bağlı olarak yararlı veya zararlı olabilen Fe, Al, Si, Ca, Na ve K gibi elementler içerir. Termik santral uçucu külünün ekolojik sistem üzerindeki etkisini değerlendirmek için bitkilerin ekofizyolojik tepkilerini analiz etmek gerekir. Zea mays L. (mısır), 10000 yıldır yetiştirilen, dünya çapında tüketilen bir bitki türüdür ve genetik ve biyoloji için önemli bir model organizmadır. Bu çalışmada, termik santral uçucu kül uygulamalarına karşı mısırın ekofizyolojik tepkilerinin gözlemlenmesi amaçlanmıştır. Deney periyodu için kontrol (0 ppm), 500, 1000, 2500, 5000 ve 7500 ppm uçucu kül uygulamaları yapılmıştır. Fidelik olarak 1 kg kapasiteli saksılar kullanılmaktadır. Farklı uçucu kül konsantrasyonları tartılmış ve 500 g toprak ile karıştırılmıştır. Daha sonra saksılara konan topraklara uçucu kül ilave edilir. Zea mays cv. Sweetcorn tohumları toprak dolu saksılara batırılmış ve 100 ml distile su ile sulanmıştır. Denemeler 14 gün sürmüş ve deneme süresi sonunda % çimlenme, hipokotil ve kök uzunlukları, fide canlılık indeksi hesaplanmıştır. 500 ila 5000 ppm uçucu kül uygulamalarının tohum çimlenmesini, gövde ve kök gelişimini ve ayrıca SVI'yı uyardığı, ancak 7500 ppm uçucu kül uygulamalarının tüm ekofizyolojik parametreler tarafından engellendiği görülmüştür. 5000 ppm'den daha düşük uçucu külün tarımsal uygulamalar için faydalı olabileceğini, ancak 5000 ppm seviyesinin üzerinde bitki gelişimine zararlı olduğunu söyleyebiliriz.

Keywords

• Ekofizyoloji
• uçucu kül
• Zea mays

Ecophysiological responses of Zea mays L. against thermal power plant fly ash applications

Abstract

Thermal power plant fly ash is one of the most important concerns of this form of energy generation, as it is the most important waste generated by burning coal in a thermal power plant. This kind of fly ash contains elements like Fe, Al, Si, Ca, Na, and K which can be beneficial or harmful depending on the concentration. To evaluate the effect of thermal power plant fly ash on the ecological system, it is necessary to analyze the ecophysiological responses of plants. Zea mays L. (corn) is a worldwide consumed plant species that has been cultivated for 10000 years and it is an important model organism for genetics and biology. In this study, it was aimed that to observe ecophysiological responses of corn against thermal power plant fly ash applications. For the experimental period, control (0 ppm), 500, 1000, 2500, 5000, and 7500 ppm of fly ash applications were set. Pots with 1 kg capacity used as seedbeds. Different fly ash concentrations were weighed and mixed with 500 g soil. Then fly ash is added to soils set in the pots. Zea mays cv. Sweetcorn seeds were soaked in soil-filled pots and watered with 100 ml distilled water. The experiments took 14 days, and at the end of the experimental period % germination, hypocotyl and radicle lengths, seedling vigor index were calculated. It was observed that 500 to 5000 ppm fly ash applications were stimulated the seed germination, stem and root development, and also SVI, but 7500 ppm fly ash applications were inhibited by all ecophysiological parameters. We can say that lower than 5000 ppm fly ash can be useful for agricultural practices, however above 5000 ppm level it is harmful to plant development.

Keywords

• Ecophysiology
• fly ash
• Zea mays

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