Cluster name

Sub

clusters

Number

of accessions

Species name and their frequencies

Phenotypic similarity within clusters

C1

18

D. abyssinica

6

green mature petiole colour

D. preahensilis

5

D. rotundata

3

D. cayenensis

6

C2

8

D. alata

3

pale purple young petiole colour, green mature petiole colour, high leaf density, presence of cracks on tuber surface, intermediate corm size and cooked tuber sweetness

D. rotundata

1

D. bulbifera

2

D. abyssinica

2

C3

7

D. preahensilis

2

dark brown stem color after emergency, green mature petiole color, intermediate corm size and presence of cracks on cooked tuber

D. abyssinica

1

D. cayenensis

1

D. rotundata

1

D. bulbifera

2

C4

19

D. abyssinica

2

yellow mature petiole color and green stem color and absence of cracks on the tuber

D. preahensilis

4

D. cayenensis

4

D. bulbifera

1

D. rotundata

5

C5

C5a

5

D. bulbifera

5

yellow mature petiole color, green stem color and twining direction to left , intermediate corm size and small tuber width at middle part

C5b

3

D. rotundata

3

absence of barky patches on the stem, green stem color, yellow mature petiole color, small tuber width at middle part, absence of tuber cracks, late maturity group, white flesh tuber color and twining direction to right