Descriptor list details

Kenya genebank characterization descriptors for sesame

1.0

Characterization descriptors for sesame as used at the Genetic Resources Research Institute (GeRRI) - Kenya. These descriptors are based on the IBPGR descriptors for sesame (1981).

Crop
Sesame
Publisher
Genetic Resources Research Institute
Version
1.0

Counted as days from sowing to 50% of seedling emergence.

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
days
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absent
1Present
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
2Green with white margin
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Flats
2Cup shaped
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Sessile
2Pedicellate
Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm
Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm

Absence or presence of pigments recorded on a mature plant.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Yellow
2Green
3Purple
Classification
Characterization descriptor
Data type
Scale
0
1
2
3
4
5
6
7
8
9

Legend:

0
Glabrous
3
Sparse
7
Hairy
9
Very hairy

Stem shape in cross section.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Square
2Round

No. of branches per plant. Average of 5 random plant from the middle of the plot.

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
Number

Visual classification of plant type.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
NNon-branching
TTop-branching
MMiddle branching
BBasal branching

Recorded at onset of flowering.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Green
2Green with yellowish cast
3Green with blue-grey cast
4Green with Purple cast

Hairiness of leaf recorded on ventral surface of bottom leaves.

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

Legend:

0
Glabrous
3
Sparse
7
Hairy
9
Very hairy
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Opposite
2Alternate
3Fixed
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Entire
2Lobed
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Flat
2Cup shaped
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absent
1Present
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Acute
5Horizontal
7Drooping

Counted as number of days from sowing to 50% of plants start pod setting.

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
days

Visual measurement of the colour of the flower at 50% flowering.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
CCreamy
PPurple
WWhite
WPWhitish purple
CWCreamish white
LCLight cream
CPCreamish purple
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
2White with violet/ purple shading
3White with deep violet/purple border
4Violet
5Purple
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Colourless
2Coloured
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Colourless
2Yellow

Recorded at dehiscence.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Low
7High
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Exserted
2Enclosed
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Rudimentary
2Developed
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Glabrous
2Hairy
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1One
2More than one

Number of nodes on the main stem.

Classification
Characterization descriptor
Data type
Numeric

Mean value from the main stem of 5 plants.

Classification
Characterization descriptor
Data type
Numeric

Counted as number of days from sowing to 50% of plants start pod setting.

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
days

Visual classification of no. of capsules per leaf axil.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1One
2More than one

Counted as no. of pods per plant. Mean of 5 random plants from the middle of the plot.

Classification
Characterization descriptor
Data type
Numeric

Number of chambers(locules) counted from a cross section of a capsule.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
4Bicarpellatum
8Quadricarpellatum

Attachment of the seeds to the placenta when capsule dehisce.

Classification
Characterization descriptor
Data type
Scale
1
2
3
4

Legend:

1
Attached
4
Loose

Mean length in mm from shoulder to shoulder.

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
mm

Description of the capsules used for capsules length.

Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Tappered
2Narrow oblong
3Broad oblong
4Square
XMixed accession
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Two
2More than two
Classification
Characterization descriptor
Data type
Scale
0
1
2
3
4
5
6
7

Legend:

0
Glabrous
3
Sparse
7
Profuse
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Short
7Long
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Straw
2Brown/Tan
3Purple
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
3Thin
7Thick

Mean no. of seeds per capsule.

Classification
Characterization descriptor
Data type
Numeric
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
0Absent
1Present
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1White
2Light Brown
3Brown
4Reddish Brown
5Grey
6Black
7Green
8Yellow
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Smooth
2Rough

Counted as number of days from sowing to 75% of plants reaching physiological maturity.

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
days

Height of plant at maturity. Mean height of 5 random plant measured in cm.

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
cm

Susceptibility to lodging is taken before harvest on a scale similar to percentages.

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

Legend:

0
No lodging
1
Very few lodged
2
Almost 50% lodged
9
Complete lodging
Classification
Characterization descriptor
Data type
Coded
CodeTermDescription
1Shallow
2Deep thin
3Tuberous

In grams per plant for not less than 10 plants .

Classification
Characterization descriptor
Data type
Numeric
Unit of measure
gr