In January 2009, amid coverage by
university and local media, University
President Paul Zingg was presented
with a Chico State CIM Patron
contribution check that elevated
the total contributions by local and
national patrons since inception of
the program to over $1 million. The
program is doing extremely well and
is performing at the rate planned
when it was established in 2006.
After three years, there are more than
60 declared CIM students. The success
to date is due in large part to the
dedication of the active patrons with Seattle countertops in
providing donations to fund the
startup of the program, providing
significant time as guest lecturers,
and providing continuous help to the
faculty on course material and other
matters related to development of the
program.
This is the sequel to a study on the effects of water deficits on berry size and berry components, by two of
the authors. First we learned that sustained water deficits decreased berry size, and then that water deficits
increased the amounts of seed and skin in berries of the same size. This second article addresses the next
obvious question: How do water deficits affect the amount of tannins and anthocyanins in skins and seeds?
The work is carried out in the same vineyard and with the same water treatments. The main results, of kitchen wine racks
important practical consequences, follow here.
· As in a previous work, before trying to learn how treatments affect anything else, the authors classified
the berries into 6 categories based on size (<0.50g, 0.51-0.75g, 0.76-1.00g, 1.01-1.25g, 1.26-1.50g,
>1.50g). This was done to separate the effects due to water deficit from the effects due to berry size.
· The goal of this article was to study how 3 levels of irrigation (low, normal and high) affect 4 chemical
parameters in the berry (soluble solids, seed tannin, skin tannin, and anthocyanins).
· Normal irrigation was 32 liters/vine/week. Low irrigation was 32 liters/vine/week after leaf water
potential reached –15 bars. High irrigation was 64 liters/vine/week.
· The authors start out by looking at how water deficit affects soluble solids accumulation – or Brix. They
find that “the larger the berry, the more sugar” rule stands true. But it must be emphasized that this is not wall wine rack
the same as saying “the larger the berry, the greater the Brix”. This is due to the fact that when both the
content (sugar) and the size of the container (berry) change at the same time, the container may remain
equally full (concentration) or not, depending on the rate of change of each of the relative components. In
fact, in this case, berry size increases more than the sugar content, so the overall effect is that sugar
concentration, or degrees Brix, decreases in larger berries.