Descriptors for rye and Triticale

1985

OCR

Crop
Rye
Publisher
IBPGR
Bibliographic citation

IBPGR. (1985). Descriptors for rye and triticale. International Board for Plant Genetic Resources, Rome.

Version
1985
Classification
Characterization
Data type
Coded
CodeTermDescription
1Winter
2FacultativeIntermediate
3Spring

Height of plant at maturity, measured from the ground to the top of spike, excluding the awns

Classification
Characterization
Data type
Free text

Counted as days from sowing to when 50% of plants have ears emerged. However, when planting in dry soils in dryland areas, it is counted from the first day of rainfall or irrigation which is sufficient for germination

Classification
Characterization
Data type
Free text

See Fig.1

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

Legend:

0

Absent

3

Weak

5

Intermediate

7

Strong

Average length (without awns) of 5 typical spikes selected from the growing accession. Measured at maturity

Classification
Characterization
Data type
Numeric

Measured at scale of 1-9, where

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

Legend:

0

Awnless

3

Short awns

7

Conspicuous awns

The average number of spikelets per spike from 5 spikes selected from a growing accession

Classification
Characterization
Data type
Numeric

Fragility of the rachis in mature spike

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

Legend:

0

Non-fragile

3

Weak shattering Upper 1/3 of disintegrates

5

Medium shattering 1/2 -1/3 disintegrates

7

Complete shattering Whole spike disintegrate

Classification
Characterization
Data type
Coded
CodeTermDescription
1White
2Grey
3Green
4Brown
5Purple
6OtherSpecify in the descriptor notes 11

See Fig.2

Classification
Characterization
Data type
Coded
CodeTermDescription
1Ovate
2Ovate-oblong
3Barrel-shaped
4Compressed on each side
5OtherSpecify in the decsriptor notes 11
Classification
Characterization
Data type
Numeric
Unit of measure
g

Glass-like appearance when seeds are transversely sectioned

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

Legend:

0

Not vitreous Soft

5

Partly vitreous

7

Vitreous

Apperance during tillering and before jointing

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

Legend:

3

Upright

7

Prostorate

Length of cold period required to induce flowering later in season

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

Legend:

3

Low

7

High

Subjective assessment of number of tillers per plant at low densities

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

Legend:

3

Low

7

High

Tendency of grains to sprout in the ear as a result of high moisture near harvest. Recorded on scale 1-9

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

Legend:

0

No sprouting

3

Low sprouting

7

High sprouting

Appearance of dry seed after harvest

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

Legend:

3

Plump

5

Intermediate

7

Shrivelled

Measured as percentage of dry weight (seed moisture equal to or less than 12%). Indicate in the notes descriptor 11and the conversion factor is either N x 6.25 or N x 6.5

Classification
Characterization
Data type
Free text

Percentage of lysine per unit of protein (absolute)

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

Legend:

3

Light

7

Dark

Suitability in making the products listed below

Classification
Characterization
Data type
Coded
CodeTermDescription
3Good
7Poor
6.3.6.1Bread
6.3.6.2Crispbread