Table 9 The qualitative traits measured according to IPGRI, IITA, and BAMNET71, and Khan et al.28.
S/N | Qualitative traits | Code | Description | Scale |
|---|---|---|---|---|
1 | Growth habit | GrH | Data was taken after 8 weeks of sowing based on the petiole and internode length of the middle stem of 5 middle plants per plot | (1) Accession of bunch type (P/I ≥ 9) |
(2) Accession of semi-bunch type (P/I = 7–9) | ||||
(3) Accession of Spreading type (P/I ≤ 7) | ||||
2 | Stem hairiness | StH | Data were recorded at the harvest | (1) Absent. (2) Sparse. (3) Dense |
3 | First stem color | FSC | Recorded after 2Â weeks of planting | (1) Green (2) Reddish (3) Stripped (4) Reddish green (5) Brownish |
4 | Terminal leaflet shape | TLS | Data were recorded 8Â weeks after sowing | (1) Round (2) Oval (3) Elliptical (4) Lanceolate |
5 | Terminal leaflet color | TLC | Data were recorded 8Â weeks after sowing | (1) Green (2). Red (3) Purple |
6 | Petiole pigmentation | PetP | Data were recorded after 2Â weeks of sowing | (1) Green (2) Reddish-brown (3) Brown (4) Reddish-green |
7 | Shape of pod | PoS | Data were taken based on 1 seeded pod at harvest | (1) Hook with ending point on the opposite side (2) Round with ending point on the opposite side (3) Hook with ending point on both sides |
8 | Color of pod | PoC | Data was taken using a color wheel and done at harvest | (1) Yellowish-brown (2) Reddish-brown (3) Brown (4) Cream with brown patches |
9 | Pod texture | PoT | Data were taken within 3–5 days of harvesting | (1) Much grooved (2) Much folded (3) Little grooved (4) Smooth |
10 | Seed shape | SeS | Data were taken from the seed of 1 seeded pod at harvest | (1) Oval. (2) Round (3) Other |
11 | Seed color | SeC | Data were taken using a color wheel and done at harvest | (1) Cream. (2) Light red (3) Light brownish red (4) Dark purple (5) Light brown (6) Purplish red |
12 | Eye color | EyC | Data were taken based on Bambara groundnut descriptor at harvest | (1) Absent (2) Brown (3) Light red (4) Black (5) Grey |
13 | Testa pattern | TeP | Data were taken based on Bambara groundnut Descriptors at harvest | (1). No testa pattern. (2) Black strips on both micropylar ends (3) Cream marbled (4) Light red strips on one micropylar end (5) Brownish red strips on both micropylar |
14 | Testa color with eye pattern around hilum | (TC + EyP) | Described in a combination of the testa background with eye color | (1) Light red/brown testa with light red /brown butterfly-like eye (2) No eye pattern (3) Cream testa with black/Brown butterfly like eye (4) Cream testa with grey/Light red triangular eye (5) Cream testa with light red patches (6) Purplish red testa with cream butterfly like eye |