Changes in Morphological, Physiological Traits and Enzyme Activity of Grafted and Ungrafted Grapevine Rootstocks Under Drought Stress      
Yazarlar (3)
Doç. Dr. Seda SUCU DAĞ Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Adem YAĞCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Kubilay Yıldırım
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Erwerbs Obstbau
Dergi ISSN 0014-0309 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 06-2018
Cilt No 60
Sayı 2
Sayfalar 127 / 136
DOI Numarası 10.1007/s10341-017-0345-7
Makale Linki http://link.springer.com/10.1007/s10341-017-0345-7
Özet
American grapevine rootstocks are used as the
most efficient control method for phylloxera disease. Vitis vinifera species are grown over these rootstocks. The rootstocks may have different drought tolerances. In present
study, morphological and physiological responds and enzyme activities of grafted and ungrafted grapevines were investigated under drought stress. The rootstocks Rupestris du Lot, 420A, 5BB, SO4, 8B, 110R, 1103P, 140Ruggeri
and Ramsey and K-7 clone of Sultani Seedless grape cultivar were used as the plant material of this study. Drought stress was exerted as water deficits and stress treatments were terminated when the available moisture level dropped
to 5%. Current findings revealed that grafted plants were less influenced morphologically from the droughts than the ungrafted ones. In control group, average leaf water potential
was measured as –0.51MPa for ungrafted plants and –0.46MPa for grafted plants. In stress group, leaf water potential was measured as –2.03MPa for ungrafted plants and as –1.69MPa for grafted ones. Superoxide dismutase (SOD) and ascorbate peroxidase (APX) enzyme activities
of both grafted and ungrafted plants increased with drought stress. Considering the enzyme activities of ungrafted plants in control and stress groups, it was observed that SOD activity
increased from 508 (unit/mg protein) to 852 (unit/mg protein); APX activity increased from 153 (micromole/mg protein/min) to 584 (micromole/mg protein/min). In grafted plants, SOD activity increased from 639 (unit/mg protein) to 796 (unit/mg protein); APX activity increased from 414 (micromole/mg protein/min) to 1002 (micromole/mg protein/ min). The drought resistant rootstocks (like 140Ru, 110R) exhibited higher enzyme activity in both control and stress groups than drought sensitive rootstocks (like 5BB, SO4).
Anahtar Kelimeler
American grapevine rootstock | Sapling | Leaf water potential | SOD | APX