Agriculture Reference
In-Depth Information
FIGURE 3:
Zones of measurements of leaf blade color with the chromameter.
for all cases, even though Ward's minimum variance criterion was among
those with the best overall performance [17], this is why we have chosen
this criterion.
To compare the level of intra-varietal diversity between populations
(N versions) and the commercial variety, we calculated the Simpson's di-
versity index for qualitative criteria (Σ
i
p
i
, where p
i
are the frequencies of
the different modalities) and the difference between the 90% and the 10%
quantiles for the quantitative criteria.
12.3 RESULTS AND DISCUSSION
12.3.1 CHANGES WITHIN THE VARIETIES
Table 5 presents the mean values of the traits observed for original and
farmers' versions for each variety and the significance of the observed
differences.
