EAHB specific descriptors

2019

List of specific or adapted descriptors for East African Highland Banana (EAHB)

Crop
Banana
Publisher
MusaNet Alliance Bioversity - CIAT
Version
2019

Height recorded from the base of the pseudostem to the emerging point of the peduncle. Girth measured at lower levels of the pseudostem around 20 cm above the collar.

Classification
Characterization
Data type
Coded
CodeTermDescription
1<4.1
24.1 - 5.1
3> 5.1

(Outermost sheaths)

Classification
Characterization
Data type
Coded
CodeTermDescription
1None
2Brown/rusty brown
3Black
4Other
Classification
Characterization
Data type
Coded
CodeTermDescription
1Suckers start with tubular leaves
2Suckers don't have tubular leaves

Record the relative surface area coverage by blotches. Look at several plants if possible to get an overall idea. Observe at lowering time.

Classification
Characterization
Data type
Coded
CodeTermDescription
1No pigmentation
2Sparse blotching(<20%)
3Moderate blotching(20%-50%)
4Extensive pigmentation(>50%)
5Completely covered with blotches
Classification
Characterization
Data type
Coded
CodeTermDescription
1Not twisted
2Twisted

The bunch should still be on the plant.

Classification
Characterization
Data type
Coded
CodeTermDescription
1Very Lax(one can easily place a hand horizontally between the hands of fruit)
2Lax(one can easily place one's hand BETWEEN the hands OF fruit)
3Compact(one can place one's finger, but NOT one's hand, between the hands of fruit)
4Very compact(one cannot place one's finger BETWEEN the hands OF fruit)

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

Classification
Characterization
Data type
Coded
CodeTermDescription
1Bare
2Neutral flowers on one to few hands only near the bunch(rest of stalk is bare).
3Male flowers/bracts above the male bud(rest of stalk is bare)
4Neutral/male flowers and presence of withered bracts on the entire stalk.
5Neutral/male flowers on the whole stalk without persis. bracts(still firmly attached to rachis)
6Small bunch from neutral/hermaphrodite flowers just above the male bud(which gradually falls)
7Some hermaphrodite flowers remaining in the centre of the rachis.
8Other

Recorded only on the fruits arranged symmetrically around the stalk. Observe the general appearance.

Classification
Characterization
Data type
Coded
CodeTermDescription
1Curved towards stalk
2Parallel to the stalk
3Curved upward(obliquely, at a 45° angle upward)
4Perpendicular to the stalk
5Other

Length measured as the internal arc of the fruit, without pedicel. Circumference measured around the middle of the fruit. Record on the inner fruit in the middle of the mid-hand of the bunch. If there is an even number of hands, there will be two middle hands. Count the middle hand that developed first.

Classification
Characterization
Data type
Coded
CodeTermDescription
1< 3.1
23.1 - 4.0
3> 4.0
Classification
Characterization
Data type
Coded
CodeTermDescription
1Pointed
2Lengthily pointed (like plantain)
3Blunt tipped (plateau at tip)
4Strongly bottle necked (wider under tip than number 2)
5Rounded

Observe before cutting the bunch as relicts may fall off.

Classification
Characterization
Data type
Coded
CodeTermDescription
1Without flower relicts
2Few flower relicts (<20% of the fruits with relicts)
3Persistent flower relicts (>20% of the fruits with relicts)
4Only base of the style persists