| Abstrak/Abstract |
Gembili species of
Dioscorea esculenta
(Lour.) Burk. a climber plant producing tubers, belongs to
Dioscoreaceae
.
This plant species has morphological variation on its vegetative organs (i.e. stems, leaves, and tubers). Thirty
accessions of gembili were collected from Java, Sumatera, Kalimantan, and Celebes (Sulawesi) of Indonesia. Tuber
samples were collected using
survey methods and cultivated as a living collection. Based on IPGRI plant descriptors
for
Dioscorea
tubers, stems, leaves, flowers, and fruits were scored and analyzed using UPGMA method. The
results show that the level of diversity of gembili is quite h
igh, ranging from 0.64
-
1.00 similarity
values.
Those
accessions were divided into
2
groups: the first cultivar group has dense thorns on roots, oblong to cylindrical tuber
shapes with white to yellowish
-
white tuber flesh. Those characters are similar to
D.
esculenta
(Lour.) Burk. var.
spinosa
(Lour.) Burk. whereas the second group showed rare thorn roots, irregular tuber shapes, and violet tuber
flesh color, and the characters are similar to
D. esculenta
(Lour.) Burk. var.
fasciculata
(Lour.) Burk. This res
ult
revealed that the variability of
D. esculenta
in Indonesia is high.
Key
word
s
:
Dioscorea esculenta,
morphology, variation, intraspecific classification |
