FRENK ÜZÜMLERİNDE {Ribes nigrum LL. Ribes rubrum L.) ÇİÇEKLENMEYLE BÜNYESEL HORMANLAR ARASINDAKİ İLİŞKİLER

Yıl 1987, Cilt: 18 Sayı: 1-4, - , 01.01.2011

İbrahim Bolat Muharrem Güleryüz

Öz

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.

Anahtar Kelimeler

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