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rated on a scale of 0 to 10, the 1980 growing season
mean pod and stem quality rating was 3 for
benomy1-treated plots, and 8 (roundoff error present)
for non-benomy1-treated plots (Table 3). If the maximum
dry-matter loss to above-ground, non-foliar, plant
pathogens was 15%, there would be 7.3% more seed yield
lost in the non-benomy1-treated plots when compared to
benomy1-treated plots (7.3% = {1 ({3**3 / 10**3} *
.15)} {1 ({8**3 / 10**3} .15)}, roundoff error
present). Similarily, in 1981, there would be a 2%
increase in yield with mean pod and stem quality ratings
of 1 and 5 for benomyl-treated and non-benomy1-treated
plots (Table 9).
The quality of seed harvested is reduced,
proportional to the square of the mean pod and stem
quality rating (Eq. 3). Primarily, {Q} is a measure of
how appropriate the harvested seed would be for
planting. If the maximum quality loss from
above-ground, non-foliar, plant pathogens would be 20%,
there was a 11% reduction in quality in 1980 (11% = {1 -
({3**2 / 10**2} .20)} {1 ({8**2 / 10**2} .20)}).
Mean pod and stem ratings of 1 for benomyl-treated and 5
for non-benomy1-treated plots in 1981 (Table 9) would
reflect a 5% reduction in quality from the
non-benomy1-treated plots when compared to the
benomyl-treated plots.