Physiological and Biochemical Characterisation of Grape Rootstocks

  • J. Satisha National Research Centre for Grapes, P.B. No. 3, Manjri Farm, Solapur Road, Pune – 412 307, Maharashtra, India
  • S.D. Ramteke National Research Centre for Grapes, P.B. No. 3, Manjri Farm, Solapur Road, Pune – 412 307, Maharashtra, India
  • G.S. Karibasappa National Research Centre for Grapes, P.B. No. 3, Manjri Farm, Solapur Road, Pune – 412 307, Maharashtra, India
DOI: https://doi.org/10.21548/28-2-1470

Abstract

Ten grape rootstocks were characterised for their various morphological, physiological and biochemical parameters.
Significant differences were observed for most of the parameters studied. Rootstocks in the group of Vitis berlandierii
× Vitis rupestris, such as 110 R, 1103 P, 99 R and B2-56, had a significantly higher content of total phenols, flavon-3-
ols, flaveonoids, proline and total protein. Optimum C/N ratios in the mother vines of these rootstocks helped attain
better rooting percentages of hardwood cuttings. Rootstocks such as Dog Ridge, 110 R, B2-56 and Salt Creek recorded
the highest relative water content (RWC) and water-use efficiency (WUE) at single-leaf level, which is an important
mechanism in overcoming drought tolerance. The high phenolic content in rootstocks such as Dog Ridge, 99 R, 110R
and 1103 P may help in reducing the incidence of major grape diseases in commercial table varieties if grafted onto
these rootstocks. This was established in our earlier studies of the incidence of powdery mildew in Thompson Seedless
grafted onto different rootstocks. A significant and positive correlation was observed for WUE and total protein
and proline content. Thus, the physio-biochemical characterisation of rootstocks may help to identify particular
rootstocks that could influence a desired trait in commercial table / wine grape varieties after grafting.

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Published
2016-12-13
Issue
Vol. 28 No. 2 (2007)
Section
Articles

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