Phaseolus acutifolius descriptors

1985
Crop
teparybean
Publisher
IBPGR
Bibliographic citation

IBPGR. (1985). Phaseolus acutifolius descriptors. International Board for Plant Genetic Resources, Rome.

Version
1985

Measured on the terminal leaflet of the third trifoliate leaf, to obtain a ratio between the length (l) and the width (w). treat shallowly lobed leaflets as a separate category. See Figure 1, below

Classification
Characterization
Data type
Coded
CodeTermDescription
1OvateL/w ratio 1:1.5
2Ovate-lanceolateL/w 1.5:2
3LanceolateL/w 2:3
4Linear-lanceolate1/w 3:6
5LinearL/w > 6
6Shallowly lobed
7OtherSpecified in the descriptor notes 11
Classification
Characterization
Data type
Coded
CodeTermDescription
1Determinate bush
2Indeterminate bush with erect branches
3Indeterminate with prostorate branches
4Indeterminate with semiclimbing main stem and branches
5Indeterminate with moderate climbing ability and pods distributed evenly up the plant
6Indeterminate with aggressive climbing ability and pods mainly on upper nodes of the plant
7OtherSpecified in the descriptor notes 11

Wings and standard: recorded at full blossom at about 8.00:10.00

Classification
Characterization
Data type
Coded
CodeTermDescription
1White
2Pink
3Lilac
4OtherNotes 11
Classification
Characterization
Data type
Coded
CodeTermDescription
1Yellow
2Tan
3Dull green
4OtherDescrptor notes 11

of fully expanded immature pod (Figure 2)

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Straight

5

Slightly curved

7

Curved

9

Recurving

For the majority of 20 randomly sampled pods at dry maturity (Fig 3)

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Leathery podded: no dehiscence (pods will not spontanously open)

5

Minor shattering: weakly, tardily dehiscent, Pods will open along suture but will not twist

7

Excessive shattering: explosive dehiscent, Pods will suddenly twist, ejecting seeds

Number of ovules from longest pod of 10 random normal plants

Classification
Characterization
Data type
Free text

If mottled, the dark background colour: use Munsell chart (or aothe chart in notes 11)

Classification
Characterization
Data type
Coded
CodeTermDescription
1White
2Oink
3Light yellow
4Dark yellow or orange
5Cream to tan
6Brown to red-brown
7Black
8Otherin the notes 11
Classification
Characterization
Data type
Coded
CodeTermDescription
0Absent
+Present

Colour of mottle

Classification
Characterization
Data type
Coded
CodeTermDescription
0Mottle absent
1White
2Ash grey
3Tan
4Brown
5Yellow
6Purple
7Black
8OtherNotes 11
Classification
Characterization
Data type
Coded
CodeTermDescription
0AbsentDull
+PresentShiny

Taken from middle of pod (figure 4)

Classification
Characterization
Data type
Coded
CodeTermDescription
1Flattened oval
2Round oval
3Flattened cuboid
4Round cuboid
5Flattened truncate
6Round truncate
7OtherNotes 11

Mean of ten randomly chosen, ripe seeds

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Short 3.6 - 5.6 mm

5

Medium 7.6 - 8.5 mm

7

Long 9.6 - 10.5 mm

Mean of ten randomly chosen, ripe seeds

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Thin 2.6 - 3.0 mm

5

Medium 3.6 - 4.0 mm

7

Thick 4.6 - 5.0 mm

Mean of 20 randomly chosen pods from the same plant

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Few 2-3 seeds

5

Intermediate 6-7 seeds

7

Many 10-11 seeds

from sowing to satge when 50% of the seedlings have emerged

Classification
Characterization
Data type
Free text

Assessed 20 days after emergence

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Poor

5

Medium

7

Vigorous

Recorded 10 days after emergence

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Green

5

Purple

7

Other Descriptor notes 11

Recorded for terminal leaflet of the third trifoliate leaf, from pulvinous to leaf tip.

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Short 3-4 cm

5

Medium 7-8 cm

7

Long 11-12 cm

Recorded for terminal leaflet of the third trifoliate leaf

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Narrow 2.3 - 2.7 cm

5

Medium 3.3 - 3.7 cm

7

Wide 4.3 - 4.7 cm

Recorded for lateral leaflet of the third trifoliate leaf

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Short 2.6 - 3.5 cm

5

Medium 4.5 - 5.5 cm

7

Long 6.6-7.5 cm

Recorded for lateral leaflet of the third trifoliate leaf

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Narrow 1.1 - 2.0 cm

5

Medium 3.1 - 4.0 cm

7

Wide 5.1 - 6.0 cm

Classification
Characterization
Data type
Coded
CodeTermDescription
0Absent
+Present

4-6 weeks after sowing

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Pale green

5

Medium green

7

Dark green

Classification
Characterization
Data type
Coded
CodeTermDescription
1Light green
2Purple
3OtherNotes 11

Recorded fro terminal leaflet of the third trifoliate

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Short 1.3-1.7 cm

5

Medium 2.3-2.7 cm

7

Long 3.3 - 3.7 cm

When 50% of the plants begin to flower

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Sparse Main stem easily visible

5

Medium

7

Abundant Very leafy

Classification
Characterization
Data type
Coded
CodeTermDescription
1Qualitative short day14 hours or less needed
2Quantitative short day14 hours or less, unless broken by repeated cycles of of 16 - 18 hours
3Day neutral
4Long day

Measure the longest branch in centimeters, record when first pod changes colour

Classification
Characterization
Data type
Numeric
Unit of measure
cm

Mean of 10 plants, on drawn out

Classification
Characterization
Data type
Free text
Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

0

None

3

Light

5

Intermediate

7

Heavy

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

0

None

3

Light Poor

5

Intermediate

7

Heavy Good

Mean weight of 10 plants, cut at ground level after drying in the sun, recorded as whole plant

Classification
Characterization
Data type
Free text
Classification
Characterization
Data type
Coded
CodeTermDescription
1Green
2Greenish purple
3OtherDescriptor notes 11

Mean of 10 plants

Classification
Characterization
Data type
Numeric

From sowing to the stage when 50 % of the plants have begun to flower

Classification
Characterization
Data type
Free text
Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Asychronous

5

Intermediate

7

Synchronous

Classification
Characterization
Data type
Coded
CodeTermDescription
1Introse
2Terminal
3Extrose

Of immature pod

Classification
Characterization
Data type
Coded
CodeTermDescription
1Green
2Purple
3OtherDescriptor notes 11

Mean of 20 randomly chose, fully expanded pods from the same plant

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Narrow 6.6 - 7.5 mm

5

Medium 8.6 - 9.5 mm

7

Wide 10.6 - 11.5 mm

Recorded 3 weeks after sowing

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

0

Glabrous

3

Slightly pubescent

5

Intermediate

7

Heavily pubescent

Of mature pods

Classification
Characterization
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

3

Indehiscent

5

Tardily dehiscent

7

Explosively dehiscent

Classification
Characterization
Data type
Coded
CodeTermDescription
0Absent
+Present

Count number of racemes having at least one fully grown pod at first harvest including both main stem and branches

Classification
Characterization
Data type
Numeric

Mean number (recorded as whole number) of pods from 10 randomly chosen plants)

Classification
Characterization
Data type
Free text

From sowing to stage when 50% of plants have ripe pods

Classification
Characterization
Data type
Free text
Classification
Characterization
Data type
Coded
CodeTermDescription
1Concave
2Non-concave

Percentage seed yield of first harvest over total harvest

Classification
Characterization
Data type
Free text

weight of 100 seeds, moisture (12-14%)

Classification
Characterization
Data type
Free text

Volume of ethanol at 94% strength taht is displaced by 100 seeds.

Classification
Characterization
Data type
Numeric
Unit of measure
mm

Average of 10 seeds, each from different plant

Classification
Characterization
Data type
Coded
CodeTermDescription
6.3.5.1LengthMeasured parallel to the hilum
6.3.5.2WidthMeasured at the hilum mid-section
6.3.5.3HeightMeasured from hilum to the opposite side

Crude kjeldhal nitrogen content, multiplied by a 6.25 conversion factor

Classification
Characterization
Data type
Numeric
Unit of measure
%