Descriptor list details

NPGRL descriptors for mung beans

2018

Descriptor list used at NPGRL to characterize mung beans (Vigna radiata) accessions. We created this descriptor list based on IPGRI descriptors for mung beans and Vigna mungo; the RHS colour chart; and UPOV plant descriptors.

Crop
Mung bean
Publisher
Not specified
Version
2018
Classification
Characterization descriptor
Data type
Free text
Classification
Characterization descriptor
Data type
Numeric
Classification
Characterization descriptor
Data type
Free text
Classification
Characterization descriptor
Data type
Date

From sowing to 50% seedling emergence

Classification
Characterization descriptor
Data type
Numeric

At 10 days after emergence

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
2Green-purple
3Purple
4Dark Purple
5Mixed
6Otherspecify

At 15 days after emergence

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Poor
5Intermediate
7Vigorous
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Ovate-lanceolate
2Lanceolate
3Ovate
4Lineate

At 3-4 weeks after planting

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Short (<2.0 cm)
5Intermediate (2.0-3.0 cm)
7Long (>3.0 cm)

At 3-4 weeks after planting

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Narrow (<0.4 cm)
5Intermediate (0.4-1.0 cm)
7Broad (>1.0 cm)

When first pod changes color

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Erectstraight with prominent main stem with few branches ascend
2Semi-erectmain stem less prominent; branches do not touch ground
3Spreadingbranches touch ground

When first pod changes color

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Determinateapical bud of main stem reproductive
2Indeterminate

When first pod changes color

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

Legend:

0
None
3
Slight
5
Intermediate
7
Pronounced

Intensity of green color of trifoliate leaves at 50% flowering

Classification
Characterization descriptor
Data type
Scale
3
4
5
6
7
8
9

Legend:

3
Light green
5
Intermediate green
7
Dark green
9
Other

At 50% flowering

Classification
Characterization descriptor
Data type
Scale
3
4
5
6
7

Legend:

3
Sparse main stem easily visible
5
Intermediate
7
Abundant very leafy
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Deltate
2Ovate
3Ovate-lanceolate
4Lanceolate
5Rhombic
6Obovate
7Otherspecify

Recorded for the leaf at the fourth node

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Short (<10 cm)
5Intermediate (10-13 cm)
7Long (>13 cm)

Recorded for the leaf at the fourth node

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Narrow (<2.6 cm)
5Intermediate 2.6-5.5 cm)
7Broad (>5.5 cm)
Classification
Characterization descriptor
Data type
Scale
0
1
2
3
4

Legend:

0
Glabrous
1
Very sparsely pubescent
2
Puberulent sparsely pubescent
3
Moderately pubescent
4
Densely pubescent
Classification
Characterization descriptor
Data type
Scale
1
2
3
4
5
6
7
8
9

Legend:

1
Glabrous
3
Very sparsely pubescent
5
Puberulent sparsely pubescent
7
Moderately pubescent
9
Densely pubescent

Recorded for the leaf at the fourth node

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Short (<12 cm)
5Intermediate (12-18 cm)
7Long (>18 cm)
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
2Green with purple spots
3Greenish purple
4Purple
5Dark purple
6Otherspecify
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
2Purple
3Dark purple
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
3Purple
5Dark purple
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
2Purple
3Dark purple
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
3Purple
5Dark purple

When first pod changes color. Count only pod-bearing branches whose origin is in the leaf axils on the main stem

Classification
Characterization descriptor
Data type
Numeric

Length of longest branch. When first pod changes color

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
cm

When 50% of pods have dried

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

Legend:

0
No visible senescence
3
Slight visible senescence
5
Moderate senescence
7
Conspicuous current senescence
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Basal
2Central
3Top
4All over

When 50% of pods have dried

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Basal
3Central
5Top
7All over

Mean of 10 randomly selected drawn-out plants

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
cm
Classification
Characterization descriptor
Data type
Scale
0
1
2
3
4
5
6
7

Legend:

0
None
3
Slight poor
5
Intermediate
7
Heavy

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

Classification
Characterization descriptor
Data type
Numeric

The node number starting from the unifoliate (primary leaf) node

Classification
Characterization descriptor
Data type
Numeric
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
2Purplish green
3Greenish purple
4Yellow green
5Purple
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
11 Yellow
32 Greenish yellow
53 Yellowish green
74 Greenish-purplish yellowspecify

Color of wings and standard of freshly opened flowers

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Yellow
2Greenish yellow
3Yellowish green
4Greenish-purplish yellow
5Otherspecify

Color of standard of freshly opened flowers

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Yellow
2Greenish yellow
3Yellowish green
4Greenish-purplish yellow
5Otherspecify

Color of wings of freshly opened flowers

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Yellow
2Greenish yellow
3Yellowish green
4Greenish-purplish yellow
6Otherspecify

Color of keel of freshly opened flowers

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Yellow
3Greenish yellow
5Greenish-purplish yellow
7Otherspecify
Classification
Characterization descriptor
Data type
Scale
1
2
3
4
5

Legend:

1
Asynchronous >30 days
3
Intermediate 15-30 days
5
Synchronous <15

Percentage of flowers that set pods,when 50% of pods are mature

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
%

When the first pod changes color

Classification
Characterization descriptor
Data type
Scale
1
2
3

Legend:

1
Mostly above canopy
2
Intermediate
3
No pods visible above canopy
Classification
Characterization descriptor
Data type
Scale
1
2
3
4
5

Legend:

1
Mostly above canopy
3
Intermediate
5
No pods visible above canopy

The length of the longest peduncle. When first pod changes color

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
cm

Number of peduncles having at least one fully grown pod at first harvest including both mainstem and branches

Classification
Characterization descriptor
Data type
Numeric

When pods are full grown

Classification
Characterization descriptor
Data type
Scale
3
4
5
6
7

Legend:

3
Pendant
5
Sub-erect
7
Erect

Mean number of pods from 10 randomly selected plants

Classification
Characterization descriptor
Data type
Numeric
Classification
Characterization descriptor
Data type
Scale
1
2
3

Legend:

1
Light green
2
Dark green
3
Other specify
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
3Dark green
5Other (specify)
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
2Dark green
3Purple
4Otherspecify
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
3Dark green
5Purple
7Otherspecify

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

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
days
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Straw
2Tan
3Brown
4Brown and black
5Black
6Otherspecify

When first pod changes color

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

Legend:

0
Glabrous
3
Puberulent sparsely pubescent
5
Moderately pubescent
7
Densely pubescent

Mean of 10 randomly selected mature pods

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
cn

Mean no. of clusters having at least one fully grown pod at first harvest including both main stem and branches

Classification
Characterization descriptor
Data type
Numeric
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absent
1Present
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0None
1Intermediate
2Heavy

Mature pod

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Semi-flat
2Round
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Hook
2Knob
3Pointed
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Hook
3Knob
5Pointed

between seeds when pod changes color

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absent
1Present
Classification
Characterization descriptor
Data type
Scale
1
2
3

Legend:

1
Least curved
2
Medium
3
Most curved
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Least curved
3Medium
5Most curved

Mean weight of 10 randomly selected plants after drying in sun

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
g
Classification
Characterization descriptor
Data type
Numeric
Unit of measure
%

Mean number for 10 randomly selected pods

Classification
Characterization descriptor
Data type
Numeric
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Globose
2Ovoid
3Drum-shaped
4Other
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
2Dark green
3Green-yellow
4Yellow
5Brown
6Black
7Grayish green
8Mottled light brown
Classification
Characterization descriptor
Data type
Scale
1
2
3
4

Legend:

1
Absent
2
Light
3
Medium
4
Heavy
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absentdull
1Presentshiny
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Concavedeeply furrowed aril prominent
2Non-concavearil not prominent

Mean weight of all harvested pods of 10 plants after being dried to appropriate moisture content

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
g

From 10 randomly selected pods after being dried to appropriate moisture content

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
g

Mean number of seeds from 10 randomly selected pods

Classification
Characterization descriptor
Data type
Numeric

Weight of 100 randomly selected seeds

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
g
Classification
Characterization descriptor
Data type
Free text

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