An Economic Assessment of Banana Genetic Improvement and ...

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ASSESSING THE IMPACT OF TECHNOLOGIES IN UGANDA 149
Figure 10.1 Yield loss avoided by adoption of improved practices and/or technologies for different production
system plantation life cycles: Scenario Group 1 (current best practice), increased adoption of improved
agronomic and integrated pest management practices for the management of weevils
Avoided yield loss (percent)
45
40
35
30
25
20
15
10
5
0
1 2 3 4 5
6 7 8 9
High prod., semicommercial
Med prod., semicommercial
Low prod., semicommercial
High prod., subsistence
Med prod., subsistence
Low prod., subsistence
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Year after adoption
information to conduct the simulations. Figure
10.1 illustrates yield loss profiles for one
of the scenarios (CBP for management of
weevils). The pattern of yield loss is driven
by the plantation cycle associated with each
production system (Table 10.3). In the case
of a semicommercial production system in a
high-productivity area (the lowest curve in
the figure), there is a slowly accumulating
yield loss within a plantation cycle that is 30
years or more in length. At the other extreme,
plantation cycles for the low-productivity
subsistence system might be 3–5 years
because of rapid build-up of yield losses.
Such profiles were generated and applied to
each of the 14 scenarios.