Subconjunto

Cassava core collection

International Institute of Tropical Agriculture maintains 2544 cassava accessions (Manihot esculenta Crantz) from 28 countries in its field bank. Being vegetatively propagated, this poses challenges in maintenance in terms of cost as well as in labour requirements. A core collection representing the range of phenotypic diversity present in the entire collection would enhance the conservation aspects and increase the potential for its exploitation in crop improvement programmes.

The present study aimed to establish a core collection using 40 agro-morphological traits evaluated at two locations using a different number of accessions in each location. To meet the challenges generated by the types of variables and include maximum diversity in the core collection, a sequential strategy based on five major concepts was used: hierarchical multiple factor analysis allowing the mixture of variables of different kinds; three-way analysis that included the effect of genotype × environment interaction in the clustering process; linear discriminant function to assign all those individuals who were included in one location but not in the other to the groups that were generated from the common number of accessions evaluated in both locations; and D-allocation method to select samples from each cluster.

The representativeness of the core subset to the entire collection was further estimated by comparing means and variances, range, and distances between accessions. The established cassava core collection consisted of 428 accessions that conserved 15% higher phenotypic diversity with no redundancies. The phenotypic diversity represented in this core collection will be a guide to users of cassava germplasm in their crop improvement programmes.

Culturas
Cassava
Número de acessos
283
Data de criação
July 5, 2012

Metadados do subconjunto


Criadores do subconjunto


Tratador de dados
Abberton Michael International Institute of Tropical Agriculture (IITA)
Tratador de dados
Ranjana Bhattacharjee International Institute of Tropical Agriculture (IITA)
Tratador de dados
Dominique Dumet
Tratador de dados
Paul Ilona International Institute of Tropical Agriculture (IITA)
Tratador de dados
Folarin Soyode

Dados e recursos


Dados de passaporte MCPD

MCPD - c7e8b6b4-4670-4a4c-97e3-595959c819ad.xlsx

Apply custom filters to accessions in this subset

Explore subset accessions on the map

Entradas

Lista de entradas incluídas no subconjunto

1. TMe-3Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3YR2
2. TMe-14Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3Z3D
3. TMe-18Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3Z7H
4. TMe-20Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3Z9K
5. TMe-26Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3ZER
6. TMe-27Manihot esculenta • Variedade tradicional/crioula • Congo+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3ZFS
7. TMe-37Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3ZQ~
8. TMe-47Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M3ZZ4
9. TMe-51Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M4016
10. TMe-54Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M4038
11. TMe-62Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M40BG
12. TMe-65Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M40EK
13. TMe-67Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M40FM
14. TMe-76Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M40PV
15. TMe-95Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M4166
16. TMe-102Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M41AA
17. TMe-104Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M41CC
18. TMe-109Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M41FF
19. TMe-113Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M41JJ
20. TMe-119Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M41PP
21. TMe-130Manihot esculenta • Variedade tradicional/crioula • Cabo Verde+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M41WW
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M42E9
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M42HC
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M42RK
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M42XR
26. TMe-176Manihot esculenta • Linhagem do melhoramento • Camarões+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M42ZT
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M432X
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M435*
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M436~
30. TMe-218Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M441Q
31. TMe-225Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M448Y
32. TMe-237Manihot esculenta • Variedade tradicional/crioula+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M44J3
33. TMe-247Manihot esculenta • Variedade tradicional/crioula • Congo+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M44TB
34. TMe-251Manihot esculenta • Linhagem do melhoramento • Gana+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M44XE
35. TMe-264Manihot esculenta • Variedade tradicional/crioula • Gana+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M456Q
36. TMe-266Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M458S
37. TMe-268Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M45AV
38. TMe-269Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M45BW
39. TMe-281Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M45P2
40. TMe-299Manihot esculenta • Variedade tradicional/crioula+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M465H
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M466J
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M46FV
43. TMe-312Manihot esculenta • Variedade tradicional/crioula • Congo+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M46HX
44. TMe-318Manihot esculenta • Variedade tradicional/crioula • Brasil+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M46Q=
45. TMe-320Manihot esculenta • Variedade tradicional/crioula • Brasil+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M46RU
46. TMe-323Manihot esculenta • Variedade tradicional/crioula • Brasil+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M46V2
47. TMe-361Manihot esculenta • Variedade tradicional/crioula • Brasil+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M47W=
48. TMe-362Manihot esculenta • Variedade tradicional/crioula • Brasil+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M47XU
49. TMe-383Manihot esculenta • Variedade tradicional/crioula • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M48FH
50. TMe-418Manihot esculenta • Linhagem do melhoramento • Nigéria+ Adicionar à minha lista
NGA039International Institute of Tropical Agriculture, Nigeria • DOI: 10.18730/M49GD