PT-BA-00398 - Truncata

 

PT-BA-00398(subsp. microcarpa)
(Note: this image has been reduced to fit this window's size; use the mouse wheel on it to zoom in/out.)
Passport Data
PDCIm Score: 6.88
Available for distribution:
Accession number: PT-BA-00398
Accession name: Truncata
Biological status of accession: wild
Taxonomic classification:
Musaceae
Musa
Eumusa
acuminata
subsp. microcarpa
Institute code: GLP005 (CIRAD)
Acquisition date: 1970-08-18
Status: active
Type of storage:
Field Collection
Morphological Characterization
Not available
Morphological Characterization Data

6.1 - Plant general appearance

6.1.1 - Leaf habit Intermediate
6.1.2 - Dwarfism Normal : leaves not overlapped and leaf ratio superior to 2.5

6.2 - Pseudostem / Suckers

6.2.1 - Pseudostem height [m] >=3
6.2.2 - Pseudostem aspect Normal
6.2.3 - Pseudostem colour Blue
6.2.4 - Pseudostem appearance Dull (waxy)
6.2.5 - Predominant underlying colour of the pseudostem Watery green
6.2.6 - Pigmentation of the underlying pseudostem Purple
6.2.7 - Sap colour Watery
6.2.8 - Wax on leaf sheaths Very little or no visible sign of wax
6.2.10 - Development of suckers More than 3/4 of the height of the parent plant
6.2.11 - Position of suckers Close to parent (vertical growth)

6.3 - Petiole / Midrib / Leaf

6.3.1 - Blotches at the petiole base Large blotches
6.3.2 - Blotches colour Brown-black
6.3.3 - Petiole canal leaf III Wide with erect margins
6.3.4 - Petiole margins Winged and clasping the pseudostem
6.3.5 - Wing type Not dry
6.3.6 - Petiole margin colour Green
6.3.7 - Edge of petiole margin Colourless
6.3.8 - Petiole margin width [cm] >1 cm
6.3.9 - Leaf blade length [cm] 171 to 220 cm
6.3.10 - Leaf blade width [cm] 81 to 90 cm
6.3.11 - Petiole length [cm] >=71 cm
6.3.12 - Colour of leaf upper surface Green
6.3.13 - Appearance of leaf upper surface Dull
6.3.14 - Colour of leaf lower surface Medium green
6.3.15 - Appearance of leaf lower surface Dull
6.3.16 - Wax on leaves Very little or no visible sign of wax
6.3.17 - Insertion point of leaf blades on petiole Symmetric
6.3.18 - Shape of leaf blade base Both sides rounded
6.3.19 - Leaf corrugation Even, smooth
6.3.20 - Colour of midrib dorsal surface Yellow
6.3.21 - Colour of midrib ventral surface Green
6.3.22 - Colour of cigar leaf dorsal surface Green
6.3.23 - Blotches on leaves of water suckers Without blotches

6.4 - Inflorescence / male bud

6.4.1 - Peduncle length [cm] 31- 60 cm
6.4.2 - Empty nodes on peduncle One
6.4.3 - Peduncle width [cm] >=13 cm
6.4.4 - Peduncle colour Dark green
6.4.5 - Peduncle hairiness Very hairy, short hairs (similar to velvet touch)
6.4.6 - Bunch position Horizontal
6.4.7 - Bunch shape Asymmetric - Bunch axis is nearly straight
6.4.8 - Bunch appearance Lax (one can easily place one's hand BETWEEN the hands OF fruit)
6.4.9 - Flowers that form the fruit Female (absence of pollen sacs or pollens)
6.4.10 - Fruits Biseriate
6.4.11 - Rachis type Present and male bud may be degenerated or persistent
6.4.12 - Rachis position Horizontal
6.4.13 - Rachis appearance Bare
6.4.14 - Male bud type Normal (present)
6.4.15 - Male bud shape Like a top
6.4.16 - Male bud size [cm] <=20 cm

6.5 - Bract

6.5.1 - Bract base shape Large shoulder
6.5.2 - Bract apex shape Pointed
6.5.3 - Bract imbrication Old bracts overlap at apex of bud (like Musa acuminata subsp. malaccensis)
6.5.4 - Colour of the bract external face Purple-brown
6.5.5 - Colour of the bract internal face Yellow or green
6.5.6 - Colour on the bract apex Not tinted with yellow (colour is uniform until apex)
6.5.7 - Colour stripes on bract Without discoloured lines on the external face
6.5.8 - Bract scars rachis Very prominent
6.5.9 - Fading of colour on bract base Colour homogenous (pigmentation is uniform and continues until the base)
6.5.10 - Male bract shape x/y <0.28 (lanceolate)
6.5.11 - Male bract lifting Lifting one at a time
6.5.12 - Bract behaviour before falling Revolute (rolling)
6.5.13 - Wax on the bract Very little or no visible sign of wax
6.5.14 - Presence of grooves on the bract Few grooves or not grooved (the bract is completely, or almost completely, smooth)

6.6 - Male flower

6.6.1 - Male flower behaviour Falling before the bract
6.6.2 - Compound tepal basic colour Cream
6.6.3 - Compound tepal pigmentation Very few or no visible sign of pigmentation
6.6.4 - Lobe colour of compound tepal Yellow
6.6.5 - Lobe development of compound tepal Little or not visible sign of development
6.6.6 - Free tepal colour Translucent white
6.6.7 - Free tepal shape Oval
6.6.8 - Free tepal appearance More or less smooth
6.6.9 - Free tepal apex development Little or no visible sign of development
6.6.10 - Free tepal apex shape Thread-like
6.6.11 - Anther exsertion Inserted
6.6.12 - Filament colour Cream
6.6.13 - Anther colour Cream
6.6.14 - Pollen sac colour White
6.6.15 - Pollen vitality [%] Abundant
6.6.16 - Style basic colour Cream
6.6.17 - Pigmentation on style Without pigmentation
6.6.18 - Style exsertion Inserted
6.6.19 - Style shape Straight
6.6.20 - Stigma colour Yellow
6.6.21 - Ovary shape Arched
6.6.22 - Ovary basic colour Cream
6.6.23 - Ovary pigmentation Very few or no visible sign of pigmentation
6.6.24 - Dominant colour of male flower Cream
6.6.25 - Irregular flowers Absent
6.6.26 - Arrangement of ovules Four-rowed (more or less)

6.7 - Fruit

6.7.1 - Fruit position Curved upward (obliquely, at a 45° angle upward)
6.7.2 - Number of fruits >=17
6.7.3 - Fruit length [cm] <=15 cm
6.7.4 - Fruit shape Straight (or slightly curved)
6.7.5 - Transverse section of fruit Rounded
6.7.6 - Fruit apex Bottle-necked
6.7.7 - Remains of flower relicts at fruit apex Without any floral relicts
6.7.8 - Fruit pedicel length [mm] 11 to 20 mm
6.7.9 - Fruit pedicel width [mm] <5 mm
6.7.10 - Pedicel surface Hairless
6.7.11 - Fusion of pedicels Very partially or no visible sign of fusion
6.7.12 - Immature fruit peel colour Light green
6.7.13 - Mature fruit peel colour Brown/rusty brown
6.7.14 - Fruit peel thickness [mm] Two or less
6.7.15 - Adherence of the fruit peel Fruit peels easily
6.7.16 - Cracks in fruit peel Without cracks
6.7.17 - Pulp in fruit With pulp
6.7.18 - Pulpe colour before maturity White
6.7.19 - Pulp colour at maturity Ivory
6.7.21 - Flesh texture Firm
6.7.22 - Predominant taste Astringent (like cooking banana)
6.7.23 - Presence of seed with source of pollen >20
6.7.24 - Seed surface Wrinkled
6.7.25 - Seed shape Flat
Phenotyping
Not available
Collecting/acquisition source
Type Name Donor Code Donor Institute Country
1. Collection IRFA / MPL Code : TRUN, Forme : Vitroplant
2. Collection CNPMF (01/11/85) Code : BRA 2208, Forme : Vitroplant
3. Collection FHIA Code : II-310
4. Collecting mission Prospection (01/03/61)
Collecting Location
Not available
Genetic Integrity
Ploidy: 2x   (CIRAD-FLHOR Neufchateau, 01/01/2005)
Field verified: Not available
Molecular Characterisation
Not available
Publications
  • Raboin L-M, Carreel F, Noyer J-L, Baurens F-C, Horry J-P, Bakry F, Montcel HTezenas Du, Ganry J, Lanaud C, Lagoda PJL.  2005.  Diploid ancestors of triploid export banana cultivars: molecular identification of 2n restitution gamete donors and n gamete donors. Molecular breeding. 16:333–341.
    •