Descriptor list details

NPGRL yardlong bean descriptor list

2018

Descriptors list used at NPGRL to characterize yard long bean (Vigna unguiculata ssp. sesquipedalis) accessions. The descriptor list created was based on IPGRI descriptors for mung bean, lima bean, Phaseolus vulgarisVigna aconitifolia, cowpea, and GRSU characterization datasheet for adzuki; and the RHS colour chart.

Crop
Yardlong bean
Publisher
Not specified
Version
2018

This is the unique identifier for accessions within a genebank, and is assigned when a sample is entered into the genebank collection

Classification
Characterization descriptor
Data type
Free text

This is the old unique identifier for accessions within the genebank

Classification
Characterization descriptor
Data type
Free text

Plot number of the accession with reference to planting plan during regeneration and characterization

Classification
Characterization descriptor
Data type
Numeric

Date of planting of the crop accessions

Classification
Characterization descriptor
Data type
Date

Location of the field where the crop was characterized

Classification
Characterization descriptor
Data type
Free text

From sowing to 50% seedling emergence

Classification
Characterization descriptor
Data type
Numeric

Dominant color of the hypocotyl

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Green
5Greenish purple
7Purple

Intensity of the dominant color of the hypocotyl

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Light
5Medium
7Intense

Degree of pubscence present in the hypocotyl

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Glabrous
3Sparse
5Intermediate
7Abundant

In cm, on 10 random seedling length from hypocotyl base to fully expanded primary leaves

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Short(<3 cm)
3Moderately short(3.1-5 cm)
5Moderately long(5.1-7 cm)
7Long(>7 cm)

Dominant color of the cotyledonous leaf

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
3Green
5Greenish-purple
7Purple
9Green with purple veins
11With red color in the midrib

In mm, average of 10 random cotyledonous leaves

Classification
Characterization descriptor
Data type
Numeric

In mm, average of 10 random cotyledonous leaves

Classification
Characterization descriptor
Data type
Numeric

Type of growth habit whether determinate or indeterminate

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Determinate bush
3Indeterminate semi-climber
5Indeterminate climber
7Otherspecify

Based on plant width and height 3 – 4 weeks after sowing

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Non–vigorous(height less than 37 cm and width less than 75 cm)
5Intermediate(height greater than 37cm or width greater than 75 cm)
7Vigorous(height greater than 37 cm and width greater than 75 cm)
9Very vigorous(height greater than 50 cm and width greater than 1 m)

Evaluated in the 6th week after planting

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Long internodes on main stems, few lateral branches, type Fordhook
3Intermediate
5short internodes on main stems, numerous lateral branches, type Henderson

Evaluated on the 6th week after planting

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1One main stem, none or few short lateral branches
3One main stem, few lateral branches starting from the first nodes
5Two or three main stems starting from the first nodes

Branching orientation during vegatative stage

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Short and erect lateral branches
5Branches tending to be perpendicular to main stem, medium length
7First lateral branches long and spreading over ground

Dominant color of the internode

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
2Green
3Greenish purple
4Purple
5Dark purple
6Light green with few purple streaks
7Light green with many purple streaks

Shape of the terminal leaflet

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Deltoid
2Ovate-lanceolate
3Cuneate
4Lobed
5Ovate

Recorded in mm, for 10 randomly selected leaflets at 50% flowering

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm

Recorded in mm, measured at the widest dimension for 10 randomly selected leaflets at 50% flowering

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm

Degree of pubscence present in the leaf

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Glabrous
3Pubescent

Recorded at 50% flowering

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
3Greenish purple
5Purple
7Dark purple

Recorded at 50% flowering

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
2Greenish purple
3Purple
4Dark purple
5Green with purple spot
6Green with purple streaks/stripes

Dominant color of basal petiole

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
3Purple
5Dark purple

Dominant shape of leaf apex

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Acute
3Acuminate
5Caudate
7Aristate

Leaf base of the central leaf

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Acute
3Cuneate
5Truncate

Dominant shape of leaf margin

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Entire
3Undulate

Pattern of veins of the leaf blade

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Parallel
3Pinnate
5Palmate

Number of days from sowing to stage when 50% and 75% of plants have begun to flower

Classification
Characterization descriptor
Data type
Numeric

Days from first flowers to stage when 50% of plants have finished flowering

Classification
Characterization descriptor
Data type
Numeric

Dominant color of flower keel

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
3Light purple
5Blue
7Dark purple
9Other(specify)

Dominant color of flower keel

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Greenish
2Tinged(pink or purple)
3White

Dominant color of flower standard

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
3Light purple
5Blue
7Dark purple
9Other(specify)

Dominant color of flower standard

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
2Light pink
3Deep pink to purple
4Violet
5Light violet

Dominant color of flower wings

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
3Light purple
5Blue
7Dark purple(specify)
9Other

Dominant color of flower wings

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
2Light pink
3Deep pink to purple
4Violet
5Light violet

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

Classification
Characterization descriptor
Data type
Numeric

Pattern of pigment distribution on full grown immature pods

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0None
1Pigmented tip
3Pigmented sutures
5Pigmented valves, green sutures
7Splashes of pigment
9Uniformly pigmented

Pattern of pigment distribution on full grown immature pods

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0None
1Pigmented tip
2Pigmented sutures
3Pigmented valves, green sutures
4Splashes of pigment
5Uniformly pigmented
6Other(specify)

Dominant color of immature pod

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Light green
2Green
3Dark green
4Purple
5Dark purple(specify)
6Other

Dominant color of mature pod (dry pod)

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Pale tan or straw
3Dark tan
5Dark brown
7Black or dark purple

In cm, of 10 randomly selected pods from10 randomly selected plants

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Very short(<30 cm)
3Short(30-39 cm)
5Medium(40-49 cm)
7Long(50-59 cm)
9Very long(>59 cm)

Degree of thickness of the pericarp

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm

In cm, of 10 randomly selected pods from10 randomly selected plants

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Narrow
5Medium
7Broad

Pod beak position whether marginal or non-marginal

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Marginal
3Non-marginal

Direction of the pod beak orientation

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Upward
3Straight
5Downward

Degree of curvature of the pod

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Straight
3Slightly curved
5Curved
7Coiled

Degree of thickness of the pericarp

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Thin
5Intermediate
7Thick

Degree of prominence of seed locules

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Highly prominent
3Less prominent
5Locules not prominent
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Smooth
3Rough
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Smooth
2Rough

Presence or absence of wax in the pod

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absent
1Present

From fully expanded mature fresh pod

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Very flat
2Pear shaped
3Round elliptic
4Figure of eight

Scale of the number of seeds per pod

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Low(<14)
5Medium(14-17)
7High(>17)

Dominant shape of the seed

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Kidney shaped
2Cuboid
3Ovoid
4Rhomboid

Number of colors present in the seed

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1One
2Two
3More than two

Largest area for 2 or more colors

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
3Brown
5Black
7Maroon
9Other(specify)

Predominant secondary color of the seed

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
3Brown
5Black
7Other(specify)

Distribution of secondary color of the seed

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Around hilum
3In streaks
5On half of grain
7In patches at tip

Smoothness or roughness of the seed coat

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Smooth
3Smooth to rough
5Rough(fine reticulation)
7Rough to wrinkled
9Wrinkled(coarse folds on the testa)

Dullness of shininess of the seed coat

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Matt
5Medium
7Shiny

Dominant color of the seed

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Cream
1Tan
2Brown
3Maroon
4Black
5Cream seeds with black patch
6Cream seeds with tan patch
7Cream seeds with maroon tip
8Cream seeds with maroon patch
9Tan seeds with brown mottling
10Tan seeds with bluish speckles
11Brown seeds with cream tips
12Brown seeds with cream patch
13Maroon seeds with cream tips
14Maroon seeds with cream patch
15Black seeds with cream patch
16Violet(almost entirely speckled)

Eye color

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Eye absent(white, cream)
1Brown splash or grey
2Tan brown
3Red
4Green
5Blue to black
6Blue to black spots or mottle
7Speckled(even distribution of fine speckling) (dark brown pigment typically absent around hilum)
8Mottled(victor)
9Mottled and speckled(specify)
10Other

Color of the hilar ring relative to the color of the seed

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Same color of seed
3Not the same

Degree of veining of the seed

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Weak
5Medium
7Strong

In mm, from 10 randomly selected plants

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm

In mm, from 10 randomly selected plants

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm

Mean thickness of the 10 seeds measured for length; measured perpendicular to length and width

Classification
Characterization descriptor
Data type
Numeric

A visual estimate of seed compression, being indicative of spacing within the pod

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Not crowded(no compression of seed ends)
3Semi–crowded(slight flattering of seed ends)
5Crowded(marked compression of seed ends)
7Extremely crowded(seed width greater than seed length)

Presence or absence of splitting in the testa

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absent
1Present(testa split exposing cotyledons)

Attachment of testa whether firm or not

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Testa not firmly attached to seed
1Testa firmly attached to seed

weight of 100 seeds in milligrams to the first decimal place at a moisture content of 12-14%

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mg

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