| Abstrak/Abstract |
Research on
morphological variability and intra
-specific classification of Indonesian water
yam (
Dioscorea alata
L.) was conducted based on
morphological characters (traits).
Sample collection of
Dioscorea
spp. was done i
n some provinces in Indonesia including
tubers,
bulbils, stems, leafs, flowers, and fruits. Furthermore, tubers or bulbils were
planted as live collection
s. Morphological characterization was conducted based o
n field
and liv
e collection data. Cluster analysis was carried out to identify key of intra
-specific
groups
. The results showed that Indonesian water yam germplasm is classified into green
and reddish
-purple groups. Based on tuber shape a
nd flesh color the green group wa
s
classified into 6 sub
-groups: (1) white rounded to oblong, (2) white sweetish
ob-
ovate, (3)
white ob
-ovate to oblong, (4) yellow ob-
ovate to oblong, (5) white to yellow long
cylindrical, and (6) white oblong Papua water yam. Based on tuber shape, tuber skin, and
color distribution in tuber flesh, the reddish-
purple group is classif
ied into 5 sub-
groups:
(1) purple long cylindrical, (2) purple ring white flash ob
-ovate, (3) purple to red ob-
ovate
to oblong, (4) purple rounded to short cylindrical, and (5) yellow flesh purple skin water
yam. The
similarity of
height within
germplasm wa
s due to vegetative propagation (clone)
from tubers and bulbils.
Key words
: Water yam (
Dioscorea alata
L.), intra
-specific classification,
morphological characters. |
