AREA II. Maturity
Project 23:
Maturity
Description:
The dependency of phenilpropanoid pathway enzyme activity and the concentration
of compounds of enological interest, of sugars and organic acids with
respect to the different combinations of load, light and hydric supply
in the Carménère variety will be determined.
The idea is to get to know the simultaneous variations in the levels of
sugars, organic acids, tannins and antocians and their level of polymerization,
and the gene expression of the enzymes responsible for the synthesis of
these compounds in the maturation process of Carménère cultivar
berries. In addition, the effect of the different levels of hydric stress
and lighting of the grape bunches, on the quality of the tannins and compounds
responsible for the color of the grape in this variety will be determined;
and the effect of the different levels of production on the maturation
parameters of the berries will be established.
Outcomes:
Get to know the simultaneous variations in the levels of sugars, organic
acids, tannins and antocians and their polymerization level, and gene
expression of the enzymes responsible for the synthesis of these compounds
in the maturation process of cv. Carménère vine berries.
Get to know the effect of the different levels of hydric stress on the
quality of the tannins and compounds responsible for the color in the
cv Carménère grapes.
Get to know the effect that the different levels of lighting on the bunch
have on the quality of tannins and of the compounds responsible for the
color in cv Carménère wine grapes.
Determine the effect of the different levels of production on berry maturation
parameters.
Researcher’s comment:
Through the restriction of growth conditions and yield, agronomic work
at the vineyards tends to increase quality. Such management must consider
very carefully the balance among the gains in organoletpic attributes
and the price of produced wine and the losses in yield, as well as the
magnitude in the loss in physiological activity at the sacrificed plant
level.
Project Length: 4 years
Project Manager and Managing Director of TecnoVid S.A.:
Claudio Pastenes
Project Team Members:
Freddy Ibañez
Ursula Arriagada
