Mature leaf

Petiole wing colour

Green, Green with purple edge, Purple, Other

Young stem colour after emergence

1 Green, 2 Purple green,

3 Brownish green, 4 Dark Brown, 5 Purple, 99 Other

Absence or presence barky patches

0 Absent, 1 Present

Absence or presence of spines

0 Absent, 1 Present

Leaf density

3 Low, 5 Intermediate, 7 High

Leaf type

1 Simple, 2 Compound

Leatherness

0 No, 1 Yes

Waxiness of upper/lower surface

1 Waxy upper surface, 2 Waxy lower surface, 3 Both

Leaf apex shape

1 Obtuse, 2 Acute, 3 Emarginate, 99 Other

Position of widest part of leaf

1 Third upper, 2 Middle, 3 Lower

Distance b/n lobs

1 No measurable distance, 5 Intermediate, 9 Very distant

Upward folding of leaf along main vein

3 Weak, 7 Strong

Dawn ward folding of leaf along main vein

3 Few, 7 Many

Mature stem

Plant type

1 Dwarf, 2 Shrub like, 3 Climbing

Twining habit

0 No, 1 Yes

Twining direction

1 Clockwise (climbing to the left), 2 Antilock Wise (climbing to the right)

Mature stem colour

1 Green, 2 Purplish green, 3 Brownish green, 4 Dark brown, 5 Purple, 99 Other

Underground Tubers

Corm size

3 Small, 5 Intermediate, 7 Large

Absence or presence of underground tuber

0 no, 1 Yes

Corm type

1 Regular, 2 Transversally elongated, 3 Branched

Tendency of tuber to branch

3 Slightly branched, 5 Branched, 7 Highly branched

ab/pr of cracks on tuber surface

3 Sparse, 7 Dense

Spines of roots

3 Few, 7 Many

Root on the tuber surface

0 No, 3 Few, 7 Many

Place of root on the tuber

3 Few, 7 Many

Uniformity of flesh colour

0 No, 1 Yes

Maturity tuber after emergency

1 Up to 6 months, 2 7 - 8 months, 3 9 - 10 months