BO 1 CARA X JM SEEDLING CATEGORY –EARLY MAINCROP

The variety is particularly suitable for pre-packing. It exhibits no disintegration after cooking and there are no off flavours. Tubers are round oval in shape, white skin with red eye and white flesh. This is a high yielding variety with uniform tuber shape and size. Skin texture is smooth and bright, flesh colour is white. Tuber depth is 19 cms; tuber spread is medium. There is no stolon attachment at maturity. Dry matter content is 20%
Quality Range Score
Tuber shape 1-9, 9 = long 4
Uniformity of shape 1-9, 9 = good 9
Eye depth 1-9, 9 = shallow 7
Skin colour White with red eye
Skin texture 1-9, 9 = smooth 9
Flesh colour 1 = white, 9 = yellow 1
Dry matter % 20
Hollow heart % <1
Internal rust spot % 1

Agronomy
Seed rate requirement 1-9, 9 = high 5
Nitrogen grouping 2 140/160 kg/hectare
Dormancy 1-9, 9 = high 5 160 days
Emergence 1-9, 9 = fast 5
Foliage maturity 1-9, 9 = extensive 7
Tuber number number per plant 13
Resistance to damage 1-9, 9 = good 8
Resistance to bruising 1-9, 9 = good 8

Yield fractions [as % of total yield of controls]
Early bulking 100% = 40 t/ha
Total 92
Consumption 45-85 mm 78

Early Maincrop lift 1000s per hectare
Total tubers 106
Oversize > 85mm 3
Large 65-85 mm 35
Small ware 45-65 mm 51
Undersize less than 45 mm 5
Out grades 12

Out grades [as % of total yield]
Greens 0.2
Growth cracks 0.2
Mechanical damage 1.5
Misshapes 0.2
Blight and wet rots 0.6
Slug damage 2.0

Pest and Disease Resistance
Foliage blight 5
Tuber blight 8
Common scab 5
Gangrene 8
PLRV 5
PvY 5