Kitchen wine racks on countertops in Seattle

How does this reduction in berry size with deficit irrigation affect the different categories of berry sizes
(<0.5 g, 0.51-1 g, 1.01-1.25 g, 1.26-1.5 g, and >1.5 g)? The authors find the reduction affects every size
category, shifting the size distribution towards smaller berries. As an example, most (70% in 1998, 73%
in 1999) of the berries in normal and high irrigation vines belonged to the medium berry size categories napa red wine
(comprised between 0.76 and 1.25 g). In the water deficit vines, most of the berries (85% in 1998, 97% in
1999) belonged instead to the smaller size categories (0.51-1.25 g). What that means is that with water
deficit, we can expect smaller berries in every category: the small get smaller and the large get somewhat
smaller too.

How much smaller? If we were to compare two average clusters, one from the control vines and one
from the deficit-irrigated vines of the study, the deficit cluster would generally weight about 12.5% less
than the control cluster in 1998, and about 18.8% less than the control in 1999.
· Indeed, the authors observed that the reduction of berry size due to the water deficit was greater in 1999
than in 1998. They attributed this variation to higher pre-veraison temperatures in 1999, which in turn, wall wine rack
triggered more negative leaf water potentials earlier in the 1999 growing season. The leaf water potential
graphs presented support this interpretation.

· In this trial, the authors noted that it took a significant water deficit - enough to sustain a leaf water
potential of –12.5 bars - to cause berry size to decrease. Both the control and the high irrigation treatments
were able to reach this level but not to maintain it, and so only the lower irrigation treatment caused a
consistent decrease in berry size.
· Amounts of seed, flesh, and skin per berry and kitchen wine racks were all proportional to berry size. That is, larger berries
have more of all of those components (“larger bags hold more”). Generally speaking, 5% of a berry
weight is seed, 80% is flesh or pulp, and 15% is skin.

Additionally, the water deficit caused the proportion of these berry components to change. In what
currency (skin, flesh or seed) does the berry preferentially pay for the loss of berry weight? The answer,
as expected, is mainly in its flesh. But surprisingly, both seed and skin weights increased, rather than
decreased, during sustained deficit irrigation. The increase in seed weight was due to one of two reasons, Seattle countertops
depending on berry size: 1) to an increase in seed size, for the small berry categories -these carry only one
seed-, or 2) to an increase in the number of seeds, for larger berry categories –these carried anywhere
from 1 to 2.5 seeds.