Elektrik Akımının Patates (Solanum tuberosum L.) Yumru Dormansisi Üzerine Etkisinin Araştırılması

Bu çalışmada patates (Solanum tuberosum L.) yumrularına farklı gerilimlerde (10 volt, 20 volt) ve iki yönlü (yerçekimine paralel (↓) ve yerçekimine zıt (↑) yönde) doğru akım (DA) uygulanmıştır. DA 15 gün (24 saat) boyunca ekimin yapıldığı ortamlarda yumrulara tatbik edilmiştir. DA’nın patates dormansisine etkilerini belirlemek amacı ile patates yumrularının hormon (giberellik asit ve absisik asit) ve şeker (glikoz, fruktoz ve sukroz) değerleri ölçülmüştür. Hormon ve şeker analizleri için Yüksek Performanslı Sıvı Kromatografisi (HPLC) yöntemi kullanılmıştır. Gerilim ve akım yönüne bağlı olarak bitkilerin hormon ve şeker değerlerinin farklılık gösterdiği tespit edilmiştir. DA’nın verildiği patates yumrularının hiç birinde filizlenme olmamıştır. GA seviyesi 20 v (↑) uygulamasında en yüksek, ABA nın ise kontrol grubunda en düşük olduğu görülmüştür. Glikoz fruktoz ve sukroz seviyelerinin 10 v (↑) uygulamasında en yüksek değerde olduğu tespit edilmiştir. Yer çekimine parallel uygulamalarda gerilim artışının glikoz fruktoz ve sukroz miktarını azalttığı ortaya konmuştur.
Anahtar Kelimeler:

Dormansi, Doğru akım, GA, Yumru

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