Influence of the rootstock and potassium fertilizer on phytoalexin synthesis in Pinot blanc grown in a calcareous soil
DOI:
https://doi.org/10.5073/vitis.1990.29.special-issue.295-299Keywords:
rootstock, potassium, nutrition, lime, soil, phytoalexin, resveratrol, chlorophyll, mineral, Botrytis, resistanceAbstract
Plants of cv. Pinot blanc, grafted on Vitis berlandieri x V. riparia Kober 5 BB, V. berlandieri x V. riparia SO 4, V. berlandieri x V. rupestris 1103 P, were grown in pots at two levels of potassium supply (0 g K2O/pot and 2 g K2O/pot) in order to test the phytoalexin synthesis in the leaves.The experimental plan included also the macronutrient, trace element and chlorophyll contents of the leaves.
The most important findings are:
a) Resveratrol synthesis decreases from Kober 5 BB to SO 4 and 1103 P, while leaf chlorophyll content increases.
b) Resveratrol synthesis is higher in the plants without potassium supply.
Downloads
Published
Issue
Section
License
The content of VITIS is published under a Creative Commons Attribution 4.0 license. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes to the original are clearly labeled. We do not prohibit or charge a fee for reuse of published content. The use of general descriptive names, trade names, trademarks, and so forth in any publication herein, even if not specifically indicated, does not imply that these names are not protected by the relevant laws and regulations. The submitting author agrees to these terms on behalf of all co-authors when submitting a manuscript. Please be aware that this license cannot be revoked. All authors retain the copyright on their work and are able to enter into separate, additional contractual arrangements.