Détails de la liste des descripteurs

CIP descriptors for sweetpotato

1991

Sweetpotato descriptors used in CIP genebank are a selection from the 1991 publication by CIP/AVRDC/IBPGR.

Culture
Sweetpotato
Éditeur
CIP/AVRDC/IBPGR, 1991, Z. Huamán
Citation bibliographique

CIP, AVRDC, IBPGR. 1991. Descriptors for Sweet Potato. Huamán, Z. editor. International Board for Plant Genetic Resources, Rome, Italy.

Version
1991

Ability of vines to climb adjacent stakes placed in those accessions showing twining characters

Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

0
No-Twining
3
Slightly Twining
5
Moderately Twining
7
Twining
9
Very Twining

Length of the main vines

Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
3Erect<75 cm
5Semi-Erect75-150
7Spreading151-250 cm
9Extremely spreading> 250 cm

Estimated percentage of the ground cover recorded 35-40 days after planting

Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
3Low<50%
5Medium50-74%
7High75-90%
9Total>90%

Average diameter of at least three internodes located in the middle section of the vine.

Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

1
Very thin <4 mm
3
Thin 4-6 mm
5
Intermediate 7-9 mm
7
Thick 10-12 mm
9
Very thick >12 mm

Average length of at least three internodes located in the middle section of the vine.

Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

1
Very short <3 cm
3
Short 3-5 cm
5
Intermediate 6-9 cm
7
Long 10-12 cm
9
Very long >12 cm

Anthocyanine (purple pigmentation) present in the vines beside the green colour. The predominant colour should be evaluated considering the whole vine from base to tip.

Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

1
Green
3
Green with fee purple spots
4
Green with many purple spots
5
Green with many dark purple spots
6
Mostly purple
7
Mostly dark purple
8
Totally purple
9
Totally dark purple

Anthocyanine (purple pigmentation) present in the vines beside the green colour. The predominant colour should be evaluated considering the whole vine from base to tip. The secondary colour is more easily evaluated using younger vines.

Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
0Absent
1Green base
2Green tip
3Green nodes
4Purple base
5Purple tip
6Purple nodes

Degree of hairiness of immature leaves recorded at the apex of the vines

Language
English
Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

0
Absent
3
Sparse
5
Moderate
7
Heavy

Described from mature leaves located in the middle section of the vine.

Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Rounded
2ReniformKidney-shaped
3CordateHeart-shaped
4Triangular
5HastateTrilobular and spear-shaped, with the basal lobes more or less divergent
6Lobed
7Almost divided
Language
English
Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

0
No lateral lobes Entire
1
Very slight Teeth
3
Slight
5
Moderate
7
Deep
9
Very deep

Most leaves of sweet potato have two basal lobes and they should not be counted. Record the predominant number of the lateral and central leaf lobes observed on the leaves located in the middle of section of the vine.

Generally sweet potatoes have 1,3,5,7 or 9 leaf lobes. If the leaf has no lateral lobes but shows a central tooth this number is 1. If the apical portion of the leaf is totally rounded this number is 0.

Language
English
Classification
Descripteur de caractérisation
Type de données
Numérique
Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
0Absent
1Toothed
2Triangular
3Semi-circular
4Semi-elliptic
5Elliptic
6Lanceolate
7Oblanceolate
8LinearBroad
9LinearNarrow

Length from the basal lobes to the tip of the leaves. Record the average expression of at least 3 leaves located in the middle section of the vine.

Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
3Small< 8 cm
5Medium8-15 cm
7Large16-25 cm
9Very large> 25 cm

Describe the most frequent expression of the distribution of anthocyanin (purple) pigmentation shown in the veins of the leaves lower surface

Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Yellow
2Green
3Purple spot in the base of mian rib
4Purple spots in several veins
5Main rib partially purple
6Main rib is mostly or totally purple
7All veins partially purple
8All veins mostly or totally purple
9Lower surface and veins totally purple

Describe the overall foliage colour considering the colour of the fully expanded mature leaves of several plants. The variegation in leaf colour due to virus symptoms should not be recorded.

Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Yellow-green
2Green
3Green wiith purple edges
4Greyish-greenDue to heavy pubescence
5Green with purple veins on upper surface
6Slightly purple
7Mostly purple
8Green upper, purple flower
9Purple both surface

Describe the overall foliage colour considering the colour of the fully expanded immature leaves of several plants. The variegation in leaf colour due to virus symptoms should not be recorded.

Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Yellow-green
2Green
3Green wiith purple edges
4Greyish-greenDue to heavy pubescence
5Green with purple veins on upper surface
6Slightly purple
7Mostly purple
8Green upper, purple flower
9Purple both surface

Average petiol length, from the base to the insertion with the blade, of at least 3 leaves in the middle portion of the main vine.

Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Very short<10 cm
3Short10-20 cm
5Intermediate21-30 cm
7Long31-40 cm
9Very long>40 cm

Distribution of the anthocyanin (purple) pigmentation in the petioles of leaves. Indicate the most predominant colour first

Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Green
2Green with purple near stem
3Green with purple near leaf
4Green with purple at both ends
5Green with purple spots throughout the petiole
6Green with purple stripes
7Purple with green near leaf
8Some petiole purple, others are green
9Totally pr mostlry purple

Storage root outline shown in longitudinal section.

Language
English
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1RoundAlmost a circular outline with a length to a breadth (L/B) ratio of about 1:1
2Round elliptica alightly circular outline with acute ends, and L/B ratio not more than 2:1
3Ellipticsymmetrical outline with about the maximum breadth at equal distance from both ends which are slightly acute. L/B ratio not more than 3:1
4Ovateoutline resembling the longitudinal section of an egg. The broadest part is at the distal end (away from the root stalk)
5Obvoateinversely ovate outline. The broadest part is at the proximal end (i.e. close to the root stalk)
6Oblongalmost rectangular outline with with sides nearly parallel and corners rounded. L/B ratio is 2:1.
7Long Oblongoblong outline with with a L/B ratio about 2:1
8Long ellipticelliptic outline with a L/B ratio of more than 3:1
9Long irregular or curved
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
0Absent
1Alligator-like skin
2Veins
3Shallow horizontal constrictions
4Deep horizontal constrictions
5Shallow longitidnal grooves
6Deep longitudinal grooves
7Deep constrictions and deep grooves
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Very thin< 1 mm
3Thin1-2 mm
5Intermediate2-3 mm
7Thick3-4 mm
9Very thick> 4mm
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1White
2Cream
3Yellow
4Orange
5Brownish orange
6Pink
7Red
8Purple-red
9Dark-purple
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1Pale
2Intermediate
3Dark
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
0Absent
1White
2Cream
3Yellow
4Orange
5Brownish orange
6Pink
7Red
8Purple-red
9Dark-purple
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
1White
2Cream
3Dark cream
4Pale yellow
5Dark yellow
6Pale orange
7Intermediate orange
8Dark orange
9Strongly pigmented with anthocyanine
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
0Absent
1White
2Cream
3Yellow
4Orange
5Brownish orange
6Pink
7Red
8Purple-red
9Dark-purple
Classification
Descripteur de caractérisation
Type de données
Codé(e)
CodeTermeDescription
0Absent
1Narrow ring in cortex
2Broad ring in cortex
3Scattered spots in the flesh
4Narrow ring in flesh
5Broad ring in the flesh
6Ring and other areas in the flesh
7In longitudinal sections
8Covering most of the flesh
9Covering all the flesh

Arrangement of the storage roots on the underground stems.

Language
English
Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

1
Closed cluster
3
Open cluster
5
Dispersed
7
Very dispersed

Amount of latex observed after cross sectioning medium-sized storage roots

Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

3
Little
5
Some
7
Abundant

Amount of browning due to oxidation observed 5-10 seconds after storage roots are cut in cross. Sepicify in reference or reference cultivar

Classification
Descripteur de caractérisation
Type de données
Échelle
0
1
2
3
4
5
6
7
8
9

Legend:

3
Little
5
Some
7
Abundant