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2022 Yam morphological characterization

2022.2

Genetic resources center of the International Institute of Tropical Agriculture characterized significant numbers of Yam accessions 20/08/2022 to 22/1/2023. For each accession five different plants were characterized , in which the mode of qualitative traits were calculated to represent each accession while for quantitative traits the mean of the five plants were calculated to represent each accessions.The vegetative data were captured at two different stages :Young stage, when the plants were two months old after planting and Matured stage at four months after planting. Reason for capturing the data : is to identify the variation within the plants using the IPGRI yam descriptor.

Partner

IITA International Institute of Tropical Agriculture

Number of accessions

935

Number of traits

Start of evaluation

20 August 2022

End of evaluation

22 January 2023

Dataset metadata

Dataset creators

Data manager

Tchamba Marimagne The International Institute of Tropical Agriculture (IITA)

Data collector

Faloye Benjamin International Institute of Tropical Agriculture (IITA)

Dataset use and licensing

Licensed under

CC BY-NC 4.0 Attribution-NonCommercial 4.0 International

More information

https://creativecommons.org/licenses/by-nc/4.0/

Data and resources

Dataset file

Yam dataset.xlsx

Preview

Dataset metadata

Metadata.xlsx

Preview

MCPD passport data

MCPD - 962f4ffc-70e2-4cbd-ae3d-73462e9f08b4.xlsx

Apply custom filters to accessions in this dataset

Explore dataset accessions on the map

Other Metadata

Date of dataset

22 January 2023

Related resources

IPGRI

Metadata create date

22 December 2023

Metadata updated date

8 January 2024

Published in Genesys

8 January 2024

Locations

Location

Ibadan, Oyo, Nigeria

Date of evaluation

20 August 2022 — 22 January 2022

ISO3 country code

NGA

Location

Ikene, Ogun state, Nigeria

Date of evaluation

20 August 2022 — 22 January 2023

ISO3 country code

NGA

Traits observed

Stem Length

Internode number

Stem Colour

Assessed at 20 days after emergence

Absence/presence of waxiness

Absence/presence of wings (young)

Wing colour

Assessed at 20 days after emergence

Absence/presence of hairs

Absence/presence of spines

Absence/presence of coloured spot at spine base

Absence/presence of barky patches

First Leaf Emergence

Leaf colour

Leaf margin colour

Vein Colour

Petiole colour

Petiole wing colour

Hairiness of upper/lower surface of leaf

Position of leaves

Leaf density

Leaf type

Leaf margin

Leaf lobation

Leatheriness

Leaf vein colour (Upper surface)

Leaf vein colour (lower surface)

Hairiness of upper surface

Hairiness of lower surface

Leaf shape

Leaf apex shape

Undulation of Leaf

Distance between lobes

Upward folding of leaf along main vein

Downward arching of leaf along main vein

Upward folding of leaf lobes to form a cup

Downward arching of leaf lobes

Leaf Length

Leaf tip length

Leaf petiole length

Hairiness of petiole

Petiole Colour

Petiole wing colour

Spininess of petiole

Absence/presence of stipules

Flowering

Sex

Inflorescence position

In relation to branches

Inflorescence smell

Inflorescence type

Flower colour

Plant type

Vigour

Twining habit

Twining direction

Stem Height

Stem colour

Absence/presence of wings

Wing colour

Assessed at 20 days after emergence

Hairiness

Spines on stem above base

Spine Position

Spine shape

Spine length

Mean of 20 spines located approximately between the first 0.5 to 1.5 m stem length

Absence/Presence of Coalescent Spines

Colour of spot at spine base

Absence/presence of aerial tuber

Accessions

List of accessions included in the dataset

1. TDa-1001 • Dioscorea alata L. • KOUKOU B31 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

2. TDa-1006 • Dioscorea alata L. • TRANGNA B33 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

3. TDa-1008 • Dioscorea alata L. • KRATCHI BL23 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

4. TDa-1011 • Dioscorea alata L. • LORI T-71 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

5. TDa-1014 • Dioscorea alata L. • AFFASSE • Traditional cultivar/Landrace

NGA039 • DOI: N/A

6. TDa-1017 • Dioscorea alata L. • AFFASSEKOUSSEM • Traditional cultivar/Landrace

NGA039 • DOI: N/A

7. TDa-1022 • Dioscorea alata L. • BH 32 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

8. TDa-1024 • Dioscorea alata L. • AFFASE TEHISSEN KN 47 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

9. TDa-1026 • Dioscorea alata L. • KEKE KN 38 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

10. TDa-1028 • Dioscorea alata L. • KPAMA BARAB T3 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

11. TDa-1031 • Dioscorea alata L. • KEKE T-73 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

12. TDa-1033 • Dioscorea alata L. • TIFIGNA D-9 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

13. TDa-1034 • Dioscorea alata L. • TEHIFOLIU AFFASE KN-23 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

14. TDa-1035 • Dioscorea alata L. • BAVERE • Traditional cultivar/Landrace

NGA039 • DOI: N/A

15. TDa-1036 • Dioscorea alata L. • GNANASI • Traditional cultivar/Landrace

NGA039 • DOI: N/A

16. TDa-1037 • Dioscorea alata L. • SAKATA • Traditional cultivar/Landrace

NGA039 • DOI: N/A

17. TDa-1038 • Dioscorea alata L. • AFARE TEHIJEEM KN32 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

18. TDa-1051 • Dioscorea alata L. • WAMOIRE KN 94 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

19. TDa-1084 • Dioscorea alata L. • BAKPANGA TENE T-72 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

20. TDa-1087 • Dioscorea alata L. • SAKATA S 85 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

21. TDa-1091 • Dioscorea alata L. • KABANGA BL 41 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

22. TDa-1094 • Dioscorea alata L. • GNIDOU • Traditional cultivar/Landrace

NGA039 • DOI: N/A

23. TDa-1099 • Dioscorea alata L. • PALLAKOKO 187 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

24. TDa-1100 • Dioscorea alata L. • TDa-1100 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

25. TDa-1102 • Dioscorea alata L. • AFASSE (0-3) • Traditional cultivar/Landrace

NGA039 • DOI: N/A

26. TDa-1105 • Dioscorea alata L. • TDa-1105 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

27. TDa-1107 • Dioscorea alata L. • AGBLE KEKLEKU • Traditional cultivar/Landrace

NGA039 • DOI: N/A

28. TDa-1111 • Dioscorea alata L. • CHIKA TCHAKA BL 13 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

29. TDa-1115 • Dioscorea alata L. • SAKATA • Traditional cultivar/Landrace

NGA039 • DOI: N/A

30. TDa-1120 • Dioscorea alata L. • TC HATCHAB T-200 • Other

NGA039 • DOI: N/A

31. TDa-1130 • Dioscorea alata L. • OGBO 248 • Other

NGA039 • DOI: N/A

32. TDa-1138 • Dioscorea alata L. • TAGNA BL 17 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

33. TDa-1145 • Dioscorea alata L. • AGBAJEKLE ON 41 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

34. TDa-1149 • Dioscorea alata L. • SAKATA T116 (4) • Traditional cultivar/Landrace

NGA039 • DOI: N/A

35. TDa-1159 • Dioscorea alata L. • AWE 71 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

36. TDa-1160 • Dioscorea alata L. • ALASSORA SOT 79 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

37. TDa-1170 • Dioscorea alata L. • BE 140 • Traditional cultivar/Landrace • Benin

NGA039 • DOI: N/A

38. TDa-1190 • Dioscorea alata L. • BE 114 • Traditional cultivar/Landrace • Benin

NGA039 • DOI: N/A

39. TDa-1193 • Dioscorea alata L. • TRIFIDO • Traditional cultivar/Landrace • Benin

NGA039 • DOI: N/A

40. TDa-1194 • Dioscorea alata L. • IC 20 • Traditional cultivar/Landrace • Ivory Coast

NGA039 • DOI: N/A

41. TDa-1196 • Dioscorea alata L. • IC 28 • Traditional cultivar/Landrace • Ivory Coast

NGA039 • DOI: N/A

42. TDa-1207 • Dioscorea alata L. • AROUPKE T-11 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

43. TDa-1214 • Dioscorea alata L. • LAMBOR B-26 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

44. TDa-1218 • Dioscorea alata L. • BE 102 • Other

NGA039 • DOI: N/A

45. TDa-1226 • Dioscorea alata L. • IC 46 • Traditional cultivar/Landrace • Ivory Coast

NGA039 • DOI: N/A

46. TDa-1227 • Dioscorea alata L. • IC 3 • Other • Ivory Coast

NGA039 • DOI: N/A

47. TDa-1230 • Dioscorea alata L. • BE 118 • Traditional cultivar/Landrace • Benin

NGA039 • DOI: N/A

48. TDa-1234 • Dioscorea alata L. • TABIDO • Other

NGA039 • DOI: N/A

49. TDa-1249 • Dioscorea alata L. • 1088 • Traditional cultivar/Landrace

NGA039 • DOI: N/A

50. TDa-1251 • Dioscorea alata L. • BE 119 • Traditional cultivar/Landrace • Benin

NGA039 • DOI: N/A