Journals / EurAsian Journal of BioSciences (elektronik) / 2008 / Sayı: 2
Toprak tuzluluğunun Catharanthus roseus'un morfolojisini değiştirmesi ve endojen mineral içeriğine etkileri
- Issue
- 2008 · Sayı: 2
- Pages
- 18–25
- DOI
- —
Abstract
In order to meet the ever increasing demand for medicinal plants, for the indigenous systems of medicine as well as for the pharmaceutical industry, some medicinal plants need to be cultivated commercially, but the soil salinity, which is prevalent in many parts of the world, pose serious threat to plant production. So it seems valuable, to test the important medicinal plants for their salt tolerance capacity. In the present investigation, experiments were conducted to study the effects of soil salinity on growth and mineral nutrients in Catharanthus roseus plants under pot culture. The plants were treated with different concentrations of NaCl, 25, 50, 75 and 100 mM on 30, 45, 60 and 75 days after sowing (DAS). Salinity affected all the morphological parameters and decreased the growth performance. The mineral contents (nitrogen, phosphorus, calcium, magnesium, potassium, iron, manganese and zinc) were analysed from treated as well as the control plants. All the treatments altered the mineral contents when compared to the untreated control plants but a significant change was found in 50 mM NaCl concentration, in which the levels of some minerals increased. Tissue sodium uptake was determined for all the treated plants and was found to have increased to a significant level when compared to the untreated plants.
Özet
Tibbi bitkiler, yoresel tibbi uygulamalari ve eczacilik endustrisi icin gittikce artmakta olan talebi karsilamak amaciyla, bazi tibbi bitkiler ticari olarak uretilmelidirler. Ancak dunyanin bir cok yerinde yaygin olan toprak tuzlulugu, bitki uretimi acisindan buyuk bir tehdit olusturmaktadir. Bu yuzden onemli tibbi bitkileri tuza toleranslari acisindan test etmek onem arz etmektedir. Bu arastirmada, toprak tuzlulugunun Catharanthus roseus'da buyume ve mineral maddeler uzerine etkilerini arastirmak amaciyla deneyler yapilmistir. Bitkiler ekimden sonra 30, 45, 60 ve 75. gunlerde 25, 50, 75 ve 100 mM NaCl konsantrasyonlari ile muamele edildiler. Tuzluluk butun morfolojik parametreleri etkiledi ve buyume performansini dusurdu. Mineral icerigi (nitrojen, fosfor, kalsiyum, magnezyum, potasyum, demir, manganez ve cinko) muamele edilmis bitkiler ve kontrol bitkilerinde analiz edildi. Kontrol bitkileri ile karsilastirildiginda, butun muameleler mineral icerigini degistirdi, fakat bazi minerallerin seviyelerinin arttigi, 50 mM NaCl konsantrasyonunda onemli bir degisiklik tespit edildi. Doku sodyum alimi, butun muamele edilmis bitkiler icin belirlendi ve kontrol bitkileriyle iyaslandiginda onemli oranda arttigi goruldu.