Final version of Tropical Legumes II Project Report for Phase 1 - icrisat

In all three countries the methodology used to elicit farmer selection criteria was the same though the number
of varieties used in country studies and number of participating farmers differed according to availability of seed
and farmers in participating communities. The procedure used in Tanzania will elaborate the methodology. A
minimum of 10 varieties each for Spanish and Virginia groups were used in farmer evaluative trials. Entries
were selected based on seed yield and a multiple of other desirable agronomic traits such as seed color, size,
shape, and maturity range. These entries were evaluated in farmers’ fields across 20 villages representing major
groundnut growing areas in southern and central Tanzania.
Table 3-4: Area planted to groundnut (000 ha) in Mozambique
Type Province 2002 2005 2006 2007 2008
Niassa 6 9 8 10 11
Cabo Delgado 26 38 22 38 27
Nampula 27 30 31 32 38
Zambezia 20 22 18 19 24
Tete 16 24 15 16 25
Large-seeded Manica 5 2 2 5 4
Sofala 5 3 2 3 4
Inhambane 7 2 0 2 2
Gaza 4 1 1 0 1
Maputo 1 1 0 0 0
National 117 132 99 125 136
Niassa 3 7 6 3 3
Cabo Delgado 9 7 8 8 8
Nampula 56 116 84 109 129
Zambezia 17 28 22 31 45
Tete 15 21 19 26 33
Small-seeded Manica 7 11 12 15 9
Sofala 4 5 7 5 9
Inhambane 64 70 43 51 53
Gaza 28 22 17 19 22
Maputo 9 7 5 6 12
National 212 294 223 273 323
Total 329 426 322 398 459
The trial was arranged in a randomized non-replicated block (mother trial) where each village comprised
a replication. Two groups of 10 farmers in each village evaluated the mother trial. A subset of the trial
(3 entries plus farmer’s check) known as baby trials was given to five individual farmers to evaluate on
their own fields. Direct ranking, pair-wise comparison and matrix ranking techniques were used to
elicit farmers’ variety preferences prior to harvest and at post-harvest stages, based on identified local
evaluative criteria. After drying, plot yield data were collected and analyzed. The decision making
criteria which farmers used in their choice and selection of varieties prior to harvest were plant vigour,
disease resistance, pod size, pod filling, grain yield and maturity period. They also included such criteria
as marketability and ease of plucking at harvesting and post-harvest stages.
At each village, each of the 10 varieties under evaluation was compared with the other and the local
check. The number of times a select variety is chosen against all others is tabulated and total score per
variety recorded. The varieties are then ranked on the basis of scores given. As can be seen in Table
3-5 above, using this pair-wise ranking methodology, ICGV-SM 99555, ICGV-SM 99557 and Pendo are
ranked 1 st , 2 nd and 3 rd , respectively.
Progress of Phase 1
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