An Economic Assessment of Banana Genetic Improvement and ...

146 CHAPTER 10
Table 10.4 Predominant management practices, by production system category
Zone Farm type Predominant management practice
High productivity Subsistence Crop sanitation by majority; light mulching by a few
Semicommercial
Crop sanitation + mulching + manure/compost
Medium productivity Subsistence Crop sanitation by majority; mulching with residues of banana
and other crops
Semicommercial Crop sanitation + mulching + manure/compost; a few apply
fertilizer (less than 5 percent)
Low productivity Subsistence Most plots managed with no sanitation, mulch, or manure/compost
Semicommercial
Crop sanitation + mulching + manure/compost
Sources: Tushemereirwe et al. (2001); NAADS (2003).
Table 10.5 Targeting of technologies relevant to industry-scale scenarios
Constraint
Principal target
genomic group
Target
environment
Technology
option
Wilts All Highland/lowland /
high soil fertility
Weevils AAA-EA Highland/lowland /
low soil fertility
Nematodes AAA, ABB Lowland /
high soil fertility
Black Sigatoka AAA-EA, ABB Lowland /
low soil fertility
Transgenic/conventional
+ improved practices
Transgenic/conventional
+ improved practices
Transgenic or conventional
Transgenic
Soil fertility decline All All Transgenic or conventional
Note: See Chapter 3 for definitions of the genomic groups.
of the DREAM model, including banana
plantation production cost data (with and
without constraints), estimates of the likely
time lags for and probability of research
success, and the potential efficacy of new
technologies under different production
conditions. Technology data were elicited
from scientists and other experts using a
survey instrument designed for the purpose,
and on-farm costs were compiled mostly
from NARO published and unpublished
sources. Technology options to address specific
constraints were targeted by environment
and genomic group, as indicated schematically
in Table 10.5. here> 10.5near 10.6near