- Research in Agricultural Sciences
- Vol: 18 Issue: 1-4
- FRENK ÜZÜMLERİNDE {Ribes nigrum LL. Ribes rubrum L.) ÇİÇEKLENMEYLE BÜNYESEL HORMANLAR ARASINDAKİ İLİ...
FRENK ÜZÜMLERİNDE {Ribes nigrum LL. Ribes rubrum L.) ÇİÇEKLENMEYLE BÜNYESEL HORMANLAR ARASINDAKİ İLİŞKİLER
Authors : Ibrahim Bolat, Muharrem Güleryüz
Pages : 0-0
View : 15 | Download : 3
Publication Date : 2011-01-01
Article Type : Research
Abstract :özet Bu çalışma, Erzurum şartlarında Mulka, Rosenthaîs ve Silvergieter Frenküzümü çeşitlerine, tomurcukların teşekkül döneminden çiçeklerin açılmasına kadar geçen devrede, bünyesel hormonların nasıl bir değişim gösterdiğini belirleyebilmek amacıyla yapılmıştır. Tomurcuklardaki büyümeyi engelleyici maddeler yaz ortasında nispeten yüksek bulunmuş ve bunların etkilerinin Eylül ortasına doğru azaldığı ve Kasım, Ocak, hatta Şubatta bile etkilerin yüksek olduğu belirlenmiştir. Engelleyici maddelerde Aralık ayından itibaren nispi bir azalma başlamış ve bunların etkinlikleri Nisan ayında minimuma düşmüştür. Büyümeyi uyartıcı maddelerin ise Mart ayından itibaren etkili olmaya başladıkları saptanmıştır. SUMMARY The Relation Between Blooming and. Endogenous Hormones in Currants (Ribes nigrum L., Ribes rubrum L.). This study was carried out to determine the changing of the endogenous hormones from bud formation to blooming period in Mulka, Rosenthals, and Silvegieter currant cvs. grown in Erzurum conditions. Bud samples were extracted with methanol, lsopropil alcohol: ammonia: water (8:1:1 v/v) was used as tank solution for. paper chromatography. Oat coleoptile test was used to determine the Rf value of growth inhibitors and promoters. The influence of growth inhibitors and promoters was changed month from according to the oat coleoptile test. The growth promoters were found in the sections of .Rf -0.1-0.1 and 0.7-Û.9 It was observed that the most effective sections of Rf for growth inhibitors was between 0.3-0.5 values. The effect of growth inhibitors was high during mid-summer. But they declined from mid-summer to mid-September. However they began to increase again from mid-September to December. It was found that the effect of growth inhibitors was high even in January. But this effect declined steadily and it was the minimum in April. On the other hand the effect of growth promoters began to increase steadily from mid-March to on. The influence of growth inhibitors was less in Rosenthals and Silvegrieter than Mulka on 10 th of April which was the date of bud burst for previous cvs.Keywords :