Mangan ve Kükürtlü Gübrelemenin Brokolinin (Brassica Oleracea var. italica) Mineral Element İçeriğine Etkisi

Öz

Brokoli, yılın serin dönemlerinde iyi yetişen dayanıklı bir sebzedir. Brokolinin iyi bir şekilde büyümesi için, orta ila yüksek verimliliğe ihtiyaç vardır. Kükürt eksikliğinin Brassica çeşitlerinde olduğu bilinmektedir; ayrıca mangan eksikliği ve toksisitesi de bu bitkilerde gözlemlenmiştir. Manganez öncelikle bitkilerdeki enzim sistemlerinin bir parçası olarak işlev görür. Birkaç önemli metabolik reaksiyonu aktive eder ve klorofil sentezine yardımcı olarak fotosentezde doğrudan rol oynar. Bununla birlikte, bu ürünün elverişli mineral içeriği ve verimliliğinin nasıl etkilendiği konusunda yeterli bilgi mevcut değildir. Bu amaçla brokolinin verimi ve element içeriği üzerine farklı manganez ve kükürt gübre dozlarının etkisini değerlendirmek için; Konya'da bir sera denemesi yapılmıştır. Bu çalışmada brokoli bitkisinin (Brassica oleraceae var. italica) mineral içeriği üzerine mangan (0- 0,3- 0,6- 1,2- 2,4 kg Mn / da) ve kükürt (0- 4- 8 kg S / da) uygulamalarının etkisi belirlenmiştir. Kontrollü koşullar altında gerçekleştirilen denemede; bitki boyu, yaprak yüzey alanı, bitki sürgün ağırlığı (g) değerleri belirlendi. Hasat sonrası verim, brokoli bitkisinin mineral konsantrasyonları (S, Mn, Fe, Zn, Cu, P, K, Ca, Mg, N) belirlenmiştir. Çalışma sonunda mangan ve kükürt uygulamaları ile taze gövde verimine pozitif etki ettiği ve özellikle de 8 kg S/da kükürt uygulamasının taze gövde verimini önemli oranda artırdığı (P<0.05) belirlendi. Bitkide Ca, Mg, K, P, S, Na, Mn, Zn, Cu ve B içerikleri ve bitki gövde kısmı ile topraktan S ve Mn alımının önemli oranda arttığı tespit edilmiştir (P<0.01).  

Anahtar Kelimeler

• Kükürt,Brassicaceae,Brokoli,Mangan,Mineral konsantrasyonu,Kükürt

Influence of Manganese and Sulphur Fertilization on the Mineral Composition of Broccoli (Brassica oleracea L. var italica)

Abstract

Broccoli is a hardy vegetable that develops best during cool seasons of the year. For efficient growth, broccoli has a moderate to high fertility requirement. Sulphur deficiency is known to occur in brassica crops and Mn deficiency and toxicity has also been observed in these plants. Mn functions primarily as part of enzyme systems in plants. It activates several important metabolic reactions and plays a direct role in photosynthesis by aiding chlorophyll synthesis. However, insufficient information is available on the mineral content of this product and how fertilization might influence it. For this purpose, a greenhouse experiment was conducted in Konya to evaluate the influence of different Mn and S fertilizer doses on the productivity and element content of broccoli. The influence of Mn and S (0-0,3- 0,6- 1,2- 2,4 kg Mn /da and 0-4-8 kg S/da applications) on the mineral content of broccoli sprouts (Brassica oleraceae var. italica cv.) was determined in this study. In the experiment carried out under controlled conditions, plant height, leaf surface area and plant shoot fresh weight were determined in the plants. After the harvest yield, mineral concentrations (S, Mn, Fe, Zn, Cu, P, K, Ca, Mg, N) of broccoli plants were analyzed. S and Mn applications had positive effects on shoot fresh yield and especially at the dose of 8 kg S/da application significantly increased shoot fresh yield (P<0.05), plant Ca, Mg, K, P, S, Na, Mn, Zn, Cu, and B contents, and the amount of S and Mn uptake by shoot from the soil (P<0.01).  

Keywords

• Sulphur,Brassicaceae,Broccoli,Manganese,Mineral concentration,Sulphur

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