TABLE 5.
Difference test of qualitative traits between the core collection and the entire collection in vegetable soybean.
| Phenotypic trait | Entire collection (EC) |
Core collection (CC)a |
Difference test (p-value)b |
| N (%) | N (%) | ||
| Seed shape | 0.91 | ||
| Round | 107 (53.5) | 15 (50.0) | |
| Oblate | 21 (10.5) | 3 (10.0) | |
| Oval | 58 (29.0) | 9 (30.0) | |
| Flat | 13 (6.5) | 3 (10.0) | |
| Seed coat color | 0.97 | ||
| Yellowish white | 26 (13.0) | 4 (14.3) | |
| Yellow | 69 (34.5) | 9 (32.1) | |
| Green | 92 (46.0) | 15 (53.6) | |
| Pale brown | 1 (0.5) | 0 (0) | |
| Reddish brown | 1 (0.5) | 0 (0) | |
| Hilum color | 0.28 | ||
| Light yellow | 13 (6.5) | 2 (7.7) | |
| Yellow | 58 (29.0) | 11 (42.3) | |
| Brown | 102 (51.0) | 11 (42.3) | |
| Green | 4 (2.0) | 2 (7.7) | |
| Hypocotyl coloration | 0.68 | ||
| Green | 131 (65.5) | 18 (60.0) | |
| Purple | 68 (34.0) | 12 (40.0) | |
| Stem color | 0.49 | ||
| Light green | 106 (53.0) | 19 (63.3) | |
| Green | 68 (34.0) | 11 (36.7) | |
| Dark green | 8 (4.0) | 0 (0) | |
| Number of branches | 0.77 | ||
| Low | 58 (29.0) | 9 (30.0) | |
| Medium | 79 (39.5) | 10 (33.3) | |
| High | 62 (31.0) | 11 (36.7) | |
| Leaflet size | 0.64 | ||
| Small | 81 (40.5) | 10 (43.5) | |
| Medium | 58 (29.0) | 11 (47.8) | |
| Large | 11 (5.5) | 2 (8.7) | |
| Leaflet shape | 0.17 | ||
| Lanceolate | 1 (0.5) | 1 (4.2) | |
| Lanceolate to oblong | 37 (18.5) | 7 (29.2) | |
| Rhomboid | 24 (12.0) | 1 (4.2) | |
| Oval | 46 (23.0) | 11 (45.8) | |
| Elliptic | 39 (19.5) | 4 (16.6) | |
| Leaf color | 0.75 | ||
| Green | 46 (23.0) | 6 (25.0) | |
| Dark green | 104 (52.0) | 18 (75.0) | |
| Plant type | 0.80 | ||
| Determinate | 142 (71.0) | 22 (91.7) | |
| Semi-determinate | 7 (3.5) | 2 (8.3) | |
| Pubescence density | 0.10 | ||
| Absent | 4 (2.0) | 2 (6.7) | |
| Rare | 20 (10.0) | 6 (20.0) | |
| Sparse | 33 (16.5) | 4 (13.3) | |
| Medium | 86 (43.0) | 7 (23.3) | |
| Dense | 56 (28.0) | 11 (36.7) | |
| Pubescence color | 0.46 | ||
| Grayish white | 102 (51.0) | 11 (39.3) | |
| Pale brown | 63 (31.5) | 11 (39.3) | |
| Brown | 32 (16.0) | 6 (21.4) | |
| Corolla color | 0.65 | ||
| White | 138 (69.0) | 20 (66.7) | |
| Purple throat | 34 (17.0) | 7 (23.3) | |
| Purple | 27 (13.5) | 3 (10.0) | |
| Pod set capacity | 0.68 | ||
| Low | 13 (6.5) | 1 (4.2) | |
| Medium | 54 (27.0) | 8 (33.3) | |
| High | 82 (41.0) | 15 (62.5) |
N, number of germplasms; %, percentage. aCore collection was identified using modified Roger’s distance for mixed quantitative–qualitative phenotypic traits. bChi-squared test was conducted to test for difference among two collections.