Descriptors Yam characterization
1. Days to emergence
Days to emergence
Unit of measure, suffix: days. Data type: java.lang.Double.
2. Stem length
Stem length
Unit of measure, suffix: cm. Data type: java.lang.Double.
3. Internode number
Internode number
Data type: java.lang.Double.
4. Young stem colour
Young stem colour
Data type: java.lang.Integer.
| 1 - Purple | |
| 2 - Colours other than Purple, marron and red | |
| 3 - Red | |
| 4 - Maroon |
5. Absence/presence of waxiness
Absence/presence of waxiness
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
6. Absence/presence of wings
Absence/presence of wings
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
7. Absence/presence of hair
Absence/presence of hair
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
8. Absence/presence of spines
Absence/presence of spines
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
9. Colored spots at the base of spine
Colored spots at the base of spine
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
10. Barky patches
Barky patches
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
11. Plant type
Plant type - astmxter
Data type: java.lang.Integer.
| 1 - Climbing | |
| 2 - Shrub-like | |
| 3 - Dwarf |
12. Bearing type
Bearing type
Data type: java.lang.Integer.
| 1 - Thick foliage | |
| 2 - Intermediate | |
| 3 - Stripped off |
13. Vigor of entire plant
Vigor of entire plant
Data type: java.lang.Integer.
| 1 - High | |
| 2 - Intermediate | |
| 3 - Low |
14. Twining habit
Twining habit
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
15. Layering habit
Layering habit
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
16. Twining direction
Twining direction
Data type: java.lang.Integer.
| 1 - Anticlockwise | |
| 2 - Clockwise |
17. Stem height 8 weeks after planting
Stem height 8 weeks after planting
Data type: java.lang.Integer.
| 1 - Short | |
| 2 - Medium | |
| 3 - Long |
18. Stem number per hill
Stem number per hill
Data type: java.lang.Double.
19. Internode number up to 1st branching
Internode number up to 1st branching
Data type: java.lang.Double.
20. Stem diameter
Stem diameter measured 15cm from the base
Unit of measure, suffix: cm. Data type: java.lang.Double.
21. Internode length
Internode length
Unit of measure, suffix: cm. Data type: java.lang.Double.
22. Branching at 16 weeks after planting
Branching at 16 weeks after planting
Data type: java.lang.Integer.
| 1 - Many | |
| 2 - Few |
23. Adult stem color
Adult stem color
Data type: java.lang.Integer.
| 1 - Green | |
| 2 - Dark green | |
| 3 - Dark Green | |
| 4 - DARK GREEN | |
| 5 - Purple | |
| 6 - Light green | |
| 7 - Light Green |
24. Adult Hairiness
Adult Hairiness
Data type: java.lang.Integer.
| 1 - Dense | |
| 2 - Sparse |
25. Adult waxiness
Adult waxiness
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
26. Adult wings
Adult wings
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
27. Rugosity
Rugosity
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
28. Striation
Striation
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
29. Cataphyll
Cataphyll
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
30. Hair type
Hair type
Data type: java.lang.Integer.
| 1 - Others | |
| 2 - Simple | |
| 3 - T-shaped | |
| 4 - Stellate |
31. Cataphyll position
Cataphyll position
Data type: java.lang.Integer.
| 1 - Both | |
| 2 - Alternate | |
| 3 - Opposite |
32. Spininess
Spininess
Data type: java.lang.Integer.
| 1 - Many/entire stem | |
| 2 - Few/entire stem | |
| 3 - Few/basal | |
| 4 - Many/basal |
33. Spine shape
Spine shape
Data type: java.lang.Integer.
| 1 - Curved downward | |
| 2 - Straight | |
| 3 - Curved upward |
34. Spine length
Spine length
Data type: java.lang.Integer.
| 1 - Long | |
| 2 - Intermediate | |
| 3 - Short |
35. Coalescent spines
Coalescent spines
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
36. Coloured spots at spine base
Coloured spots at spine base
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
37. Color of spots at spine base
Color of spots at spine base
Data type: java.lang.Integer.
| 1 - Red | |
| 2 - Colours other than Maroon, purple and red | |
| 3 - Purple | |
| 4 - Maroon |
38. Surviving plants 4 weeks after planting
Surviving plants 4 weeks after planting
Data type: java.lang.Double.
39. Leaf number
Leaf number counted 20 days after emergence
Data type: java.lang.Double.
40. Pigmentation between Veins
Pigmentation between Veins
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
41. Hairiness of leaf surfaces
Hairiness of leaf surfaces
Data type: java.lang.Integer.
| 1 - Upper and lower surface | |
| 2 - None | |
| 3 - Lower surface only | |
| 4 - Upper surface only |
42. Leaf arrangement
Leaf arrangement
Data type: java.lang.Integer.
| 1 - Opposite | |
| 2 - Alternate | |
| 3 - Both |
43. Onset of leaf
Onset of leaf
Data type: java.lang.Integer.
| 1 - Early | |
| 2 - Late |
44. Leaf density
Leaf density
Data type: java.lang.Integer.
| 1 - Dense | |
| 2 - Intermediate | |
| 3 - Sparse |
45. Internode no to 1st assimilating leaf
Internode no to 1st assimilating leaf
Data type: java.lang.Double.
46. Leaf type
Leaf type
Data type: java.lang.Integer.
| 1 - Simple, entire, shalowly lobed | |
| 2 - Serated | |
| 3 - Compound | |
| 4 - Deeply lobed |
47. Leatheriness
Leatheriness
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
48. Undulation of leaf margin
Undulation of leaf margin
Data type: java.lang.Integer.
| 1 - Few | |
| 2 - Many |
49. Veins per leaf
Veins per leaf
Data type: java.lang.Double.
50. Leaf colour
Leaf colour
Data type: java.lang.Integer.
| 1 - Green | |
| 2 - Very dark green | |
| 3 - Very light green |
51. Hairiness of upper surface
Hairiness of upper surface
Data type: java.lang.Integer.
| 1 - Dense | |
| 2 - Sparse |
52. Hairiness of lower surface
Hairiness of lower surface
Data type: java.lang.Integer.
| 1 - Dense | |
| 2 - Sparse |
53. Waxiness of upper/lower surface
Waxiness of upper/lower surface
Data type: java.lang.Integer.
| 1 - Both | |
| 2 - Waxy upper surface | |
| 3 - Waxy lower surface |
54. Leaf shape
Leaf shape
Data type: java.lang.Integer.
| 1 - Cordate broad | |
| 2 - Sagitate broad | |
| 3 - Sagitate long | |
| 4 - Cordate long | |
| 5 - Cordate | |
| 6 - Ovate | |
| 7 - Hastate |
55. Lobe shape
Lobe shape
Data type: java.lang.Integer.
| 1 - Rounded | |
| 2 - Pointed |
56. Distance between lobes
Distance between lobes
Data type: java.lang.Integer.
| 1 - No measurable distance | |
| 2 - Intermediate | |
| 3 - Very distant |
57. Leaf base shape
Leaf base shape
Data type: java.lang.Integer.
| 1 - Emarginate | |
| 2 - Obtuse | |
| 3 - Acute |
58. Upward folding of leaf along main vein
Upward folding of leaf along main vein
Data type: java.lang.Integer.
| 1 - Weak | |
| 2 - Strong |
59. Downward arhing of leaf along main vein
Downward arhing of leaf along main vein
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
60. Upward folding of leaf lobes
Upward folding of leaf lobes
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
61. Downward arching of leaf lobes
Downward arching of leaf lobes
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
62. Stipules
Stipules
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
63. Leaf length
Leaf length
Unit of measure, suffix: cm. Data type: java.lang.Double.
64. Leaf width
Leaf width
Unit of measure, suffix: cm. Data type: java.lang.Double.
65. Position of the broadest leaves
Position of the broadest leaves
Data type: java.lang.Integer.
| 1 - Medium part | |
| 2 - Upper part | |
| 3 - Lower part |
66. Leaf tip
Leaf tip
Data type: java.lang.Integer.
| 1 - Short | |
| 2 - Medium | |
| 3 - Long |
67. Leaf tip colour
Leaf tip colour
Data type: java.lang.Integer.
| 1 - Dark green | |
| 2 - Colours other than dark green and red | |
| 3 - Red |
68. Petiole length
Petiole length
Unit of measure, suffix: cm. Data type: java.lang.Double.
69. Petiole length in correlation to leaf blade length
Petiole length in correlation to leaf blade length
Data type: java.lang.Integer.
| 1 - Short | |
| 2 - Long | |
| 3 - Medium |
70. Hairiness of petiole
Hairiness of petiole
Data type: java.lang.Integer.
| 1 - Dense | |
| 2 - Sparse |
71. Colour of spots on petiole
Colour of spots on petiole
Data type: java.lang.Integer.
| 1 - Purple | |
| 2 - Red |
72. Coloured spots position on petiole
Coloured spots position on petiole
Data type: java.lang.Integer.
| 1 - End | |
| 2 - Medium |
73. Spininess of petiole
Spininess of petiole
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
74. Amount of leafing in October
Amount of leafing in October
Data type: java.lang.Integer.
| 1 - Intermediate | |
| 2 - Dense | |
| 3 - Sparse |
75. Amount of leafing in January
Amount of leafing in January
Data type: java.lang.Integer.
| 1 - Sparse | |
| 2 - Dense | |
| 3 - Intermediate |
76. Flowering
Flowering
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
77. Days to flowering
Days from planting to flowering
Unit of measure, suffix: days. Data type: java.lang.Integer.
| 5 - 5 | |
| 18 - 18 | |
| 22 - 22 | |
| 23 - 23 | |
| 24 - 24 | |
| 25 - 25 | |
| 27 - 27 | |
| 28 - 28 | |
| 29 - 29 | |
| 30 - 30 | |
| 31 - 31 | |
| 32 - 32 | |
| 33 - 33 | |
| 34 - 34 | |
| 35 - 35 | |
| 36 - 36 | |
| 37 - 37 | |
| 38 - 38 | |
| 39 - 39 | |
| 40 - 40 | |
| 41 - 41 | |
| 42 - 42 | |
| 43 - 43 | |
| 44 - 44 | |
| 45 - 45 | |
| 46 - 46 | |
| 47 - 47 | |
| 48 - 48 | |
| 49 - 49 | |
| 50 - 50 | |
| 51 - 51 | |
| 52 - 52 | |
| 53 - 53 | |
| 54 - 54 | |
| 55 - 55 | |
| 56 - 56 | |
| 57 - 57 | |
| 58 - 58 | |
| 59 - 59 | |
| 60 - 60 | |
| 61 - 61 | |
| 62 - 62 | |
| 63 - 63 | |
| 64 - 64 | |
| 65 - 65 | |
| 66 - 66 | |
| 67 - 67 | |
| 68 - 68 | |
| 69 - 69 | |
| 70 - 70 | |
| 71 - 71 | |
| 72 - 72 | |
| 73 - 73 | |
| 74 - 74 | |
| 75 - 75 | |
| 76 - 76 | |
| 77 - 77 | |
| 78 - 78 | |
| 79 - 79 | |
| 80 - 80 | |
| 81 - 81 | |
| 82 - 82 | |
| 83 - 83 | |
| 84 - 84 | |
| 85 - 85 | |
| 86 - 86 | |
| 87 - 87 | |
| 88 - 88 | |
| 89 - 89 | |
| 90 - 90 | |
| 91 - 91 | |
| 92 - 92 | |
| 93 - 93 | |
| 94 - 94 | |
| 95 - 95 | |
| 96 - 96 | |
| 97 - 97 | |
| 98 - 98 | |
| 99 - 99 | |
| 100 - 100 | |
| 101 - 101 | |
| 102 - 102 | |
| 103 - 103 | |
| 104 - 104 | |
| 105 - 105 | |
| 106 - 106 | |
| 107 - 107 | |
| 108 - 108 | |
| 109 - 109 | |
| 110 - 110 | |
| 111 - 111 | |
| 112 - 112 | |
| 113 - 113 | |
| 115 - 115 | |
| 119 - 119 | |
| 120 - 120 | |
| 121 - 121 | |
| 122 - 122 | |
| 123 - 123 | |
| 124 - 124 | |
| 125 - 125 | |
| 126 - 126 | |
| 127 - 127 | |
| 129 - 129 | |
| 130 - 130 | |
| 133 - 133 | |
| 141 - 141 | |
| 150 - 150 | |
| 151 - 151 |
78. Inflorescence smell
Inflorescence smell
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
79. Sex
Sex
Data type: java.lang.Integer.
| 1 - Male | |
| 2 - Female | |
| 3 - Female and Male [mostly female] | |
| 4 - Male and Female [mostly Male] |
80. Inflorescence position
Inflorescence position
Data type: java.lang.Integer.
| 1 - Apical | |
| 2 - Basal |
81. Number of inflorescence per plant
Number of inflorescence per plant
Data type: java.lang.Integer.
| 1 - Many | |
| 2 - Few | |
| 3 - Average |
82. Inflorescence type
Inflorescence type
Data type: java.lang.Integer.
| 1 - Spike-like raceme | |
| 2 - Spikes |
83. Number of inflorescence per internode
Number of inflorescence per internode
Data type: java.lang.Double.
84. Average length of inflorescence
Average length of inflorescence
Unit of measure, suffix: cm. Data type: java.lang.Double.
85. Number of flowers per inflorescence
Number of flowers per inflorescence
Data type: java.lang.Double.
86. Flower colour at maturity
Flower colour at maturity
Data type: java.lang.Integer.
| 1 - Yellow | |
| 2 - Other colours outside white yellow and purple | |
| 3 - White | |
| 4 - Purple |
87. Female flower length
Female flower length
Unit of measure, suffix: cm. Data type: java.lang.Double.
88. Male flower diameter
Male flower diameter
Unit of measure, suffix: cm. Data type: java.lang.Double.
89. Fruit formation
Fruit formation
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
90. Fruit position
Fruit position
Data type: java.lang.Integer.
| 1 - Apical | |
| 2 - Basal |
91. Fruit quality
Fruit quality
Data type: java.lang.Integer.
| 1 - Well-developed | |
| 2 - Poorly-developed |
92. Fruit shape
Fruit shape
Data type: java.lang.Integer.
| 1 - Elongated | |
| 2 - Trilobated capsule | |
| 3 - Equal in length and width |
93. Fruit size
Fruit size
Data type: java.lang.Integer.
| 1 - Small | |
| 2 - Large |
94. Fruit hairiness
Fruit hairiness
Data type: java.lang.Integer.
| 1 - Dense | |
| 2 - Sparse |
95. Fruit waxiness
Fruit waxiness
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
96. Dark spot inside fruits
Dark spot inside fruits
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
97. Maturity (tubers) after emergence
Maturity (tubers) after emergence
Data type: java.lang.Integer.
| 1 - Intermediate | |
| 2 - Early | |
| 3 - Late |
98. Tuber growth
Tuber growth
Data type: java.lang.Integer.
| 1 - Annual | |
| 2 - Perenial |
99. Number of tubers per Hill
Number of tubers per Hill
Data type: java.lang.Integer.
| 1 - One | |
| 2 - Few | |
| 3 - Several |
100. Relationship of tubers
Relationship of tubers
Data type: java.lang.Integer.
| 1 - Fused at neck | |
| 2 - Completely saparated and distant | |
| 3 - Completely separate and close together |
101. Corm
Corm
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
102. Corm size with tubersize
Corm size with tubersize
Data type: java.lang.Integer.
| 1 - Small | |
| 2 - Intermediate | |
| 3 - Large |
103. Corm ability to be separate from tuber
Corm ability to be separate from tuber
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
104. Spininess of root
Spininess of root
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
105. Sprouting at harvest
Sprouting at harvest
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
106. Aerial tuber formation
Aerial tuber formation
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
107. Skin color
Skin color
Data type: java.lang.Integer.
| 1 - Dark brown | |
| 2 - Light brown | |
| 3 - Greyish | |
| 4 - Colours other than brown and grey |
108. Surface texture
Surface texture
Data type: java.lang.Integer.
| 1 - Wrinkle | |
| 2 - Smooth | |
| 3 - Rough |
109. Bumps
Bumps
Data type: java.lang.Integer.
| 1 - Absent | |
| 2 - Present |
110. Skin thickness
Skin thickness
Data type: java.lang.Integer.
| 1 - Thin | |
| 2 - Thick |
111. Tuber shape
Tuber shape
Data type: java.lang.Integer.
| 1 - Cylindrical | |
| 2 - Oval | |
| 3 - Round | |
| 4 - Oval-oblong | |
| 5 - Irregular |
112. Uniformity of tuber shape
Uniformity of tuber shape
Data type: java.lang.Integer.
| 1 - Very uniform | |
| 2 - Medium | |
| 3 - Not uniform |
113. Tendency of tuber branch
Tendency of tuber branch
Data type: java.lang.Integer.
| 1 - Highly branched | |
| 2 - Slightly branched | |
| 3 - Branched |
114. Place where tuber branch
Place where tuber branch
Data type: java.lang.Integer.
| 1 - Lower third | |
| 2 - Middle | |
| 3 - Upper third |
115. Tuber length
Tuber length
Unit of measure, suffix: cm. Data type: java.lang.Double.
116. Tuber width
Tuber width
Unit of measure, suffix: cm. Data type: java.lang.Double.
117. Spiny roots at tuber surface
Spiny roots at tuber surface
Data type: java.lang.Integer.
| 1 - Few | |
| 2 - Many |
118. Roots on the tuber surface
Roots on the tuber surface
Data type: java.lang.Integer.
| 1 - Few | |
| 2 - Many |
119. Rugosity of tuber surface
Rugosity of tuber surface
Data type: java.lang.Integer.
| 1 - Medium | |
| 2 - Smooth | |
| 3 - Rugose |
120. Cracks on tuber surface
Cracks on tuber surface
Data type: java.lang.Integer.
| 1 - Present | |
| 2 - Absent |
