ITC Musa collection characterization data obtained from Field Verification

2.0

Conservation strategies rely on the stability and availability of conserved plant genetic resources, both in situ and ex situ. At Bioversity’s International Musa Germplasm Transit Centre (ITC), based at the Katholieke Universiteit Leuven, Belgium, the genetic integrity of the in vitro collection is continually assessed.

The ITC is the largest banana genebank, with more than 1,680 accessions available to researchers, breeders and the larger Musa community. The stakeholders’ needs are to know that the germplasm that they request is true-to-type, and to be able to access all available data on the germplasm. In this assessment, also called field verification, data from the systematic periodical characterization of in vitro plantlets in partners’ field collections ensures the characterization of the ITC collection.

This dataset contains the characterization data of 196 accessions scoring 72 morphological descriptors.

Partner
Number of accessions
196
Number of traits
67
Start of evaluation
2018
End of evaluation
2026
Dataset metadata

Dataset creators

Data digitizer
Max Ruas Alliance of Bioversity International and CIAT

Dataset use and licensing


Data and resources

Dataset file

BEL084 Phenotypic dataset 20260507_V4Edited.xlsx

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Dataset metadata

Metadata.xlsx

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MCPD passport data

MCPD - fbe36f32-14a6-44e8-b032-71f0f9d937f2.xlsx

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Other Metadata

Date of dataset
May 7, 2026
Metadata create date
May 6, 2026
Metadata updated date
July 23, 2026
Published in Genesys
July 23, 2026
Locations
Location
USDA-TARS, Puerto Rico
Date of evaluation
2018 2026
ISO3 country code
PRI
Traits observed

Recorded from the base of pseudostem to emerging point of the peduncle

In relation to the parent plant. Observed on the tallest sucker. Recorded at harvest time

Measured by the number of emitted foliage leaves (or their scars) that are at least 10 cm wide. The scars are the dried-up bases of the petioles of past leaves. Along the pseudostem, the leaves are arranged in two spirals. Count the number along one spiral and multiply by 2. Tip: Mark the number of leaves on the pseudostem as it grows to avoid having to count scars since planting.

Determined by the circumference at 100 cm

Recorded without removing the external sheaths. The colour of oldest dry sheaths should not be considered. (Chart A)

Recorded as in 6.2.3

Remove the outermost sheath from the pseudostem and look at the exposed surface of the underlying pseudostem. The values 5 (pink-purple), 6 (red-purple) and 7 (purple) must be chosen only if the pigmentation is uniform, and green tinges are not observed. (Chart A)

Record the tinge of pigmentation, even if it is only noticeable in places. (Chart A)

Cut the external sheath of pseudostem and record the characteristics of the sap. (Chart A)

Record the number of suckers from soil level to point of emergence of the last leaf (>30 cm height). Recorded only if no desuckering has taken place

Recorded on the third, fully unfolded leaf counting down from the top of the plant. (See Fig. 5)

Record the relative surface area coverage by blotches.

Recorded on the third, fully unfolded leaf counting down from the top of the plant. (See Fig. 5)

Use colour chart A. Observation should be made before shooting, on a developed sucker or on another plant of the same accession. Look at the visible face (future lower face) of the cigar leaf before it is unfurled and before the plant flowers.

Leaf III is the third leaf counted from the last leaf (leaf I) produced before bunch emergence. Cut the petiole half way between the pseudostem and the leaf blade and examine the cross section. (See Figs. 4 and 6)

The third leaf (Leaf III) is counted from the last leaf produced before bunch emergence. Cut the petiole halfway between the pseudostem and the leaf blade and examine the cross section

Margin is the part of the petiole that can be bent outwards/inwards

Observation should be made at shooting. Record on the last developed leaf at flowering stage.

Measured from the leaf crown to the first hand of fruit

Observe only the part of the rachis between the last hand and the male bud

For the following descriptors, observe only that part of the rachis between the last hand of fruit and the male bud

“w” is the broadest width of the male bud. “x” is the length from the base of the male bud to the point of broadest width ‘w’; “y” is the total length of the male bud. As the figure shows, these parameters express the profile of the bud. Do not measure the dimensions along the bud but rather on a projection/outline of the bud (e.g. trace the outline of the bud on paper). Calculate the ratio w/y (see figure)

Note the general shape of the male bud at harvest. (See Fig. 9)

Measure the length (y) of male bud at harvest

“w” is the broadest width of the male bud. “x” is the length from the base of the male bud to the point of broadest width ‘w’; “y” is the total length of the male bud. As the figure shows, these parameters express the profile of the bud. Do not measure the dimensions along the bud but rather on a projection/outline of the bud (e.g. trace the outline of the bud on paper). Calculate the ratio x/y (see figure).

Descriptor state 4 (red/or pink-purple) is green homogeneously tinged with red (purple green appearance). When pigmentation is scattered, use state 5. (Chart A)

(Position of the fruit-bearing part). Angle from vertical to the general axis of the bunch

Angle between the axis of the bunch and the vertical.

Score on fully developed plant with no environmental stress.

The bunch should still be on the plant.

Refers to the last lifted bract. Best to record as bract has lifted up to the horizontal.

Flatten the apex of the bract to observe its shape. (See Fig. 11)

Refers to the first external unlifted bract. Flatten bracts to determine shape.

Alignment of bracts at the apex of the male bud

Observed on the face opposite to the dehiscence split of the anther (dorsal face). (Chart B)

Without considering lobe colour. (Chart B)

For the following descriptors, records should be made on the inner fruit in the middle of the mid-hand of the bunch, at harvest time (first fruit ripening on bunch) / Recorded only on fruits arranged symmetrically around the stalk

(Before joining the crown)

Before they join the rachis at the bract scar. Look up from bottom of bunch.

Recorded on the youngest hand of the bunch, before maturity. (Chart B)

Recorded on youngest hand of the bunch. (Chart B)

(Chart B). (Ripe, but not over-ripe; full yellow stage)

Observed on the mid-hand of the bunch

Measured as the internal arc of the fruit, without pedicel

Observe the inner fruit in the middle of the mid-hand of the bunch. In case of an asymmetric bunch that has straight and curved fruits, please indicate it in the note section and score only the fruit on the upper side of the bunch.

Observe the inner fruit in the middle of the mid-hand of the bunch. In case of an asymmetric bunch, score the dominant fruit shape appearing in the bunch.

Observed at the distal end of the fruit. (See Fig. 22)

Observe before cutting the bunch as relicts may fall off.

Accessions

List of accessions included in the dataset

2. ITC0015Musa aab subgr. plantain • Essang • Traditional cultivar/LandraceGabon
BEL084 DOI: 10.18730/9VFVM
3. ITC0016Musa aab subgr. plantain • Gabon 1 • Traditional cultivar/LandraceGabon
BEL084 DOI: 10.18730/9VGK7
4. ITC0022Musa aab subgr. plantain • Mulolou • Traditional cultivar/LandraceGabon
BEL084 DOI: 10.18730/9J6EC
5. ITC0023Musa aab subgr. plantain • Moufoubila • Traditional cultivar/LandraceAustria
BEL084 DOI: 10.18730/9J6GE
6. ITC0027Musa aab subgr. plantain • Congo 2 • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9J6VS
7. ITC0033Musa aab subgr. plantain • Bungaoisan • Traditional cultivar/LandraceIndonesia
BEL084 DOI: 10.18730/9J770
8. ITC0034Musa aab subgr. plantain • Daluyao • Traditional cultivar/LandracePhilippines
BEL084 DOI: 10.18730/9J7A3
9. ITC0041Musa aab subgr. plantain • Didiedi • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9J7G9
10. ITC0044Musa aab subgr. plantain • Niangafelo • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9J7PF
11. ITC0054Musa aab subgr. plantain • Diby 2 • Traditional cultivar/LandraceIvory Coast
BEL084 DOI: 10.18730/9J83W
12. ITC0057Musa aab subgr. plantain • Bindi-Mossendjo • Traditional cultivar/LandraceAustria
BEL084 DOI: 10.18730/9J87*
13. ITC0079Musa textilis subsp. textilis • Musa textilis (Abaca) • Wild
BEL084 DOI: 10.18730/9J98W
14. ITC0090Musa aa • Tjau Lagada • Traditional cultivar/LandraceIndonesia
BEL084 DOI: 10.18730/9JA6N
15. ITC0111Musa aab subgr. plantain • Agbagba • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JBAM
16. ITC0119Musa aab subgr. plantain • Osoaboaso • Traditional cultivar/LandraceGhana
BEL084 DOI: 10.18730/9JBQ~
17. ITC0121Musa aab subgr. plantain • Ihitisim • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JBV0
18. ITC0126Musa aaa subgr. mutika/lujugira • Ingumba y'Inyamunyo • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JC5A
19. ITC0156Musa aaa subgr. mutika/lujugira • Muhongoroka • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JDZZ
20. ITC0165Musa aaa subgr. mutika/lujugira • Intariho • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JEHC
21. ITC0170Musa aaa subgr. mutika/lujugira • Bakurura • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JETN
22. ITC0180Musa aaa subgr. cavendish • Grande Naine • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JFH7
23. ITC0182Musa aaa subgr. mutika/lujugira • Muniamimba • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JFK9
24. ITC0191Musa aab subgr. plantain • Rouge de Loum • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JG9Z
25. ITC0192Musa aab subgr. plantain • Ntie • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGA*
26. ITC0193Musa aab subgr. plantain • Nyombe no.2 • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGC$
27. ITC0194Musa aab subgr. plantain • Okele • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGEU
28. ITC0195Musa aab subgr. plantain • Kwa • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGJ3
29. ITC0196Musa aab subgr. plantain • Kar Ngou • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGN6
30. ITC0199Musa aab subgr. plantain • Ndingo Liko • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGSA
31. ITC0200Musa aab subgr. plantain • Kelong Mekintu • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGVC
32. ITC0201Musa aab subgr. plantain • Elat • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JGXE
33. ITC0202Musa aab subgr. plantain • Mbeta no.1 • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JH0H
34. ITC0203Musa aab subgr. plantain • Niabang • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JH3M
35. ITC0204Musa aab subgr. plantain • Rose d'Ekona • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JH5P
36. ITC0205Musa aab subgr. plantain • French Rouge • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JH7R
37. ITC0211Musa balbisiana Colla • Balbisiana • Wild
BEL084 DOI: 10.18730/9JHN1
38. ITC0217Musa aab subgr. plantain • Akpakpak • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JJ3F
39. ITC0219Musa aab subgr. plantain • Apem Pa • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JJ9N
40. ITC0223Musa aab subgr. plantain • Apantu • Traditional cultivar/Landrace
BEL084 DOI: 10.18730/9JJCR
41. ITC0227Musa aab subgr. plantain • Ntanga 6 • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JJN~
42. ITC0228Musa aab subgr. plantain • Bae Ako Ukom • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JJQ=
43. ITC0229Musa aab subgr. plantain • Abomienu • Traditional cultivar/LandraceGhana
BEL084 DOI: 10.18730/9JJT1
44. ITC0230Musa aab subgr. plantain • Ukom • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JJV2
45. ITC0231Musa aab subgr. plantain • Apem Onniaba • Traditional cultivar/LandraceGhana
BEL084 DOI: 10.18730/9JJX4
46. ITC0233Musa aab subgr. plantain • Mbirinyong • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JK18
47. ITC0234Musa aab subgr. plantain • Mbirinyong green mutant • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JK3A
48. ITC0235Musa aab subgr. plantain • Obubit Ukom • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JK5C
49. ITC0236Musa aab subgr. plantain • Ngok Egome • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JK7E
50. ITC0237Musa aab subgr. plantain • Monganga • Traditional cultivar/LandraceNigeria
BEL084 DOI: 10.18730/9JK9G