Lima bean, Phaseolus lunatus L., has been recognized by many scientists as a grain legume well adapted to the subhumid and humid lowland tropics. Although the plant originated in Latin America, it is also extensively cultivated and studied in temperate or subtropical regions of other continents.
IBPGR. (1982). Lima bean descriptors. Rome: Bioversity.
Measured on the terminal laeflet of third trifoliate leaf-from pulvinus to leaf tip
Legend:
5-7 cm
9-11 cm
13-15 cm
Measured on the terminal leaflet of third trifoliate leaf according to the ratio of length, (1) to width (w). See Figure 1
Code | Term | Description |
---|---|---|
1 | Round | |
3 | Ovate | |
5 | Ovate-lanceolate | |
7 | Lanceolate | |
9 | Linear-lanceolate |
Code | Term | Description |
---|---|---|
1 | Determinate with probable genotype | Dd |
2 | Indeterminate, with probable genotype | D |
From emergence to stage when 90% of pods are ripe
Average from 10 random plants: if determinate type, from cotyledon scar to last leaf; if indeterminate type, from cotyledon scar to first flowering node
From emergence to stage when 50% of plants have begun to flower
Code | Term | Description |
---|---|---|
1 | White, with probable genotype | Cc or C-rrpp |
3 | Light pink, with probable genotype (C-R-pp or | |
5 | Deep pink to purple, with probable genotype (C-rrP or | |
7 | Violet, with probable genotype | C-R-P |
Of fully expanded immature pod See Figure 2
Legend:
Straight
Slightly curved
Curved
From emergence to stage when 50% of plants have mature pods
Of mature pods
Code | Term | Description |
---|---|---|
1 | Brown | |
2 | Brown with re/ purple spotting or molting | Pigmented patches |
3 | Red, purple or black | Pigmented all over |
Average of 20 randomly chosen mature pods. If pods are curved, measure the longest straight line from base to tip of pods
Ovule attachment on 20 randomly chosen pods
The lightest colour
Code | Term | Description |
---|---|---|
1 | Green | |
2 | White | |
3 | Grey | |
4 | Yellow | |
5 | Buff | |
6 | Light brown | |
7 | Maroon | |
8 | Pink | |
9 | Red | |
10 | Dark red | |
11 | Purple red | |
12 | Black |
Eye always included; if bicoloured pattern consider only the lightest colour of the pattern
Code | Term | Description |
---|---|---|
0 | No pattern | |
1 | Green | |
2 | Light brown or orange | |
3 | Dark brown | |
4 | Red | |
5 | Purple red | |
6 | Black |
Darkest colour of pattern
Code | Term | Description |
---|---|---|
0 | Monocoloured pattern/no pattern | |
1 | Dark red | |
2 | Purple red | |
3 | Black |
The different shapes and localization of the pigments observed on the seed testa form the basis for this classification into various patterns. In the following descriptions, refer to Figures 3 and 4 for each part of seed described
Code | Term | Description |
---|---|---|
0 | No pattern , Group A | |
1 | Pattern around eye only, Group B | |
2 | Eye distinct with few specks on body, Group C1 | |
3 | Eye distinct with many specks on body, Group C2 | |
4 | Eye distinct with blotches on < 50% of body, Group D1 | |
5 | Eye distinct with blotches on >50% of body, Group D2 | |
6 | Eye linked to other parts of pattern, blotches in hilar region (more developed towards micropyle), some specks may be present, Group E1 | |
7 | Eye linked to other parts of pattern, blotch covering hilar region and front side, some specks may be present, Group E2 | |
8 | Eye linked to other parts of pattern, blotch covering hilar region, back, front and keel, specks present on rest of body, Group E3 | |
9 | Eye linked to other parts of pattern, blotch in hilar region, body has bands radiating from hilar region, Group E4 | |
10 | Eye linked to. other parts of pattern, blotch in hilar region, body has bands oriented radially and transversely, Group E5 | |
11 | Body sparsely mottled, Group F1 | |
12 | Body moderately mottled, some joined to form a blotch, Group F2 | |
13 | Body intensely mottled, seed background is almost hidden, Group F3 |
Seed taken from middle of pod, see figure 5 for descriptor states
Average of 10 ripe seeds chosen at random
Average of 10 ripe seeds chosen at random
Weight of 100 seeds moisture content 12 – 14 %
Code | Term | Description |
---|---|---|
1 | White | |
2 | Green | |
3 | Red or purple |
Code | Term | Description |
---|---|---|
1 | Green, with probable genotype cc or C-rrpp or C-R-Rb- | |
2 | Red, with probable genotype C-R-rbrb | |
3 | Red purple, with probable genotype C-R-P-rbrb | |
4 | Purple, with probable C-rrP-rbrb |
At 4-6 weeks after planting
Code | Term | Description |
---|---|---|
0 | No pigmentation, with probable genotype cc or C-rrpp | |
3 | Localized to nodes, with probable genotype C-R-pp or C-rrP- | |
5 | Extensive or C-R-P- | |
7 | Almost Solid |
Code | Term | Description |
---|---|---|
0 | Absent | |
3 | Narrow | |
7 | Wide |
On inner face
Code | Term | Description |
---|---|---|
1 | Green | |
2 | Purple |
Code | Term | Description |
---|---|---|
0 | Absent | |
1 | Present |
4-6 weeks after planting
Legend:
Pale green
Intermediate green
Dark green
On inner face of first fully expanded leaves from tip
Legend:
Glabrous
Slightly pubescent
Moderately pubescent
Highly pubescent
6 weeks after planting
Legend:
Long internodes on main stems, few lateral branches, type Fordhook
Intermediate
Short internodes on main stems, numerous lateral branches, type Henderson
See Figure 6
Legend:
Short and erect lateral branches
Branches tending to be perpendicular to main stem, medium in length
First lateral branches long and spreading over ground
6 weeks after planting
Legend:
One main stem, none or few short lateral branches
One main stem, few lateral branches starting from the first nodes
Two or three main stems starting from the first nodes
Two or three main stems and other lateral branches
Densely branched
On 10 random plants
On 10 random mature plants, from cotyledon scar to tip of plant
When 90% of pods are ripe
Legend:
Few leaves remaining
Intermediate
Most leaves remaining
Just before opening. See Figure 7
Legend:
Small 3.6-4.5 cm
Medium 5.6-6.5 cm
Large 7.6-8.5 cm
Colour of tip
Code | Term | Description |
---|---|---|
1 | Greenish, with probable genotype cc or C-rrpp | |
2 | Tinged (pink or purple), with probable genotype C-R-pp or C-rrP- or C-R-P- |
Upper part of inner side
Code | Term | Description |
---|---|---|
1 | White | |
3 | Light pink | |
5 | Deep pink to purple | |
7 | Violet |
Outer face of freshly opened flower
Legend:
Absent
Sparsely hairy on tip
Moderately hairy
Densely hairy all over
Freshly opened flowers. See Figure 8
Code | Term | Description |
---|---|---|
0 | Parallel wings; closed | |
3 | Intermediate opening | |
7 | Wings widely diverging |
One raceme from each of 10 plants at pod filling period If determinate type, one terminal raceme If indeterminate type, one lateral raceme (6th from apex)
One raceme from each of 10 plants at pod filling period If determinate type, one terminal raceme If indeterminate type, one lateral raceme (6th from apex)
At fully expanded green pod stage
Code | Term | Description |
---|---|---|
3 | Within foliage | |
5 | Intermediate | |
7 | Emerging from leaf canopy |
From first flowers to stage where 50% of plants have finished flowering
On fully expanded immature pods
Code | Term | Description |
---|---|---|
0 | Glabrous | |
1 | Pubescent |
On fully expanded immature pods. See Figure 9
Code | Term | Description |
---|---|---|
1 | Short beak | |
2 | Medium length beak | |
3 | Long beak | |
4 | Thick beak |
Code | Term | Description |
---|---|---|
1 | Mainly concentrated at the base | |
2 | Mainly concentrated in the middle | |
3 | Mainly concentrated at the top | |
4 | Evenly distributed throughout the plant | |
5 | Variably distributed |
At maturity
Code | Term | Description |
---|---|---|
1 | Upright | |
2 | Prostrate |
At maturity
Code | Term | Description |
---|---|---|
0 | Non-shattering | |
1 | Shattering |
Of the largest width from 20, randomly chosen, mature pods
Average from 20 randomly chosen ripe pods
Radicle emergence
Code | Term | Description |
---|---|---|
0 | Absent | |
1 | Present |
Code | Term | Description |
---|---|---|
0 | Absent | |
1 | Present |
Transverse ridges may exist radiating from the hilum to the opposite edge of seed
Code | Term | Description |
---|---|---|
3 | Smooth | |
5 | Moderately ridged | |
7 | Markedly ridged |
94% ethanol displaced by 100 seeds
Of ripe seeds
Code | Term | Description |
---|---|---|
1 | White, With probable genotype G- | |
2 | Green, with probable genotype gg |
In minutes (specify how long in storage and cooking method in the NOTES descriptor, 11)
Colorimetric or potentiometric methods, specify method in the NOTES descriptor, 11