Serkan CANBAY, Ersin POLAT

Patlıcan fidelerine yapılan UV-B ışın uygulamalarının fidelerde bitki besin maddesi içeriğine etkisi

Bu çalışmada, Ultraviyole B (UV-B) ışın uygulamalarının patlıcan fidelerinde bitki besin maddesi içeriğine olan etkileri araştırılmıştır. Bu amaçla patlıcan (Solanum melongena L. cv. Anamur F1) fideleri, kontrol (0 kJ m-2 gün-1), 10.8 kJ m-2 gün-1 (düşük doz) ve 16.2 kJ m-2 gün-1 (yüksek doz) UV-B ışın uygulamasına ilk gerçek yapraklı oldukları dönemden itibaren 10 gün (sırasıyla, 76.5 dk gün-1 ve 114.75 dk gün-1) süre ile tabi tutulmuşlardır. Araştırmada fide köklerinde ve toprak üstü aksamda azot, potasyum, fosfor, kalsiyum, demir, magnezyum, mangan ve çinko içerikleri ile yapraklardaki H2O2 miktarı belirlenmiştir. Yüksek doz UV-B uygulamasının patlıcan fide köklerinde fosfor içeriğinin artışına sebep olduğu, düşük doz UV-B uygulamasının ise üst aksam fosfor içeriğini azaltırken, kök ve üst aksamlarda çinko miktarını arttırdığı, azot miktarındaki artışın ise sadece üst aksamda olduğu görülmüştür.

Anahtar Kelimeler:

Solanum melongena L., UV-B, H2O2, Bitki besin maddesi

Effects of UV-B irradiation on plant nutrient contents of eggplant seedlings

The aim of the study was to investigate the effects of UV-B irradiation on plant nutrient contents in eggplant (Solanum melongena L) seedlings. Seedlings were subjected to UV-B irradiation 0 kJ m-2 day-1, 10.8 kJ m-2 day-1 and 16.2 kJ m-2 day-1 for 10 days (76.5 min day-1-114.75 min day-1) when they reached to the first true leaves stage. In the study, nitrogen, potassium, phosphorus, calcium, iron, magnesium, manganese and zinc contents in the seedling roots and upper parts of seedlings and the amount of H2O2 in the leaves were determined. It has been determined that high-dose UV-B application causes an increase in phosphorus content in eggplant seedling roots, while low-dose UV-B application increases the amount of zinc in the root and upper parts. The increase in the amount of nitrogen by low-dose UV-B application was obserbed only in the upper part of seedlings.

Keywords:

Solanum melongena L., UV-B, Plant nutrient, H2O2,

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Anderson JG, Toohey DW, Brune WH (1991) Free radicals within the antarctic vortex: The role of cfcs in antarctic ozone loss. Science 251(4989): 39-46.
AOAC (1992) Crude Protein in Cereal Grains and Oilseeds. Official Method 992.23.
Bowler C, Montagu M, Inze D (1992) Superoxide dismutase and stress tolerance. Annual Review of Plant Biology 43: 83-116.
Correia CM, Coutinho JF, Bacelar EA, Gonçalves BM, Bjorn LO, Pereia JM (2012) Ultraviolet-B radiation and nitrogen affect nutrient concentrations and the amount of nutrients acquired by above-ground organs of maize. Science World Journal 1: 11.
de Azevedo Neto AD, Prisco JT, Eneas-Filho J (2005) Hydrogen peroxide pretreatment induces salt-stress acclimation in maize plants. Journal of Plant Physiology 162: 1114-1122.
Fedina I, Hidema J, Velitchkova M, Georgieva K, Nedeva D (2010) UV-B induced stress responses in three rice cultivars. Biologia Plantarum 54: 571-574.
Li Z, Zhang Y, Peng D, Wang X, Peng Y, He X, Zhang X, Ma X, Huang L, Yan Y (2015) Polyamine regulates tolerance to water stress in leaves of white clover associated with antioxidant defense and dehydrin genes via involvement in calcium messenger system and hydrogen peroxide signaling. Front Physiol 6: 280. doi: 10.3389/fphys.2015.00280.
Miller GAD, Suzuki N, Ciftci-Yilmaz S (2010) Reactive oxygen species homeostasis and signalling during drought and salinity stresses. Plant Cell Environ 33(4): 453-67.
Mullineaux P, Bali L, Escobar C, Karpinska B, Creissen G, Karpinski S (2000) Arediverse signaling pathways integrated in the regulation of Arabidopsis antioxidant defense gene expression in response to excess excidation energy. Philosophical Transsactions of Royal Society London 355: 1531-1540.
NMKL 161 (1998) Metals determination by atomic absorption spectrophotometry after wet digestion in a microwave oven (Codex Endorsed Method).
Oktay M (1999) Çinko katkılı kompoze gübrelerin değişik kültür bitkilerinin yetiştiriciliğinde kullanım. Ege Üniversitesi, Tarımsal Uygulama ve Araştırma Merkezi Yay. No: 35, İzmir.
Peng Q, Zhou Q (2010) Effects of enhanced UV-B radiation on the distribution of mineral elements in soybean (Glycine Max) seedlings. Chemosphere 78(7): 859-863.
Velikova V, Yordanow I, Edreva A (2000) Oxidative stress and some antioxidant systems in acid rain treated bean plants protective role of exogenous polyamines. Plant Science (151): 59-66.
Vural H, Eşiyok D, Duman İ (2000) Kültür Sebzeleri (Sebze Yetiştirme). Ege Üniversitesi, Ziraat Fakültesi, Bahçe Bitkileri Bölümü. Bornova, İzmir.
Yao X, Chu J, He X, Si C (2014) Grain yield, starch, protein and nutritional element concentrations of winter wheat exposed to enhanced UV-B during different growth stages. Journal of Cereal Science 60: 31-36.
Yaşar F (2003) Tuz stresi altındaki patlıcan genotiplerinde bazı antioksidant enzim aktivitelerinin ın vitro ve in vivo olarak incelenmesi (doktora tezi, basılmamıs). Yüzüncü Yıl Üniversitesi. Fen Bilimleri Enstitüsü, Van, s. 139.
Yuan L, Ming Y, Xunling W (1998) Effects of enhanced ultraviolet-B radiation on crop structure, Growth and yield components of spring wheat under field conditions. Field Crops Research 57(3): 253-263.