Botanical Name: Solanum tuberosum
Varieties:

Early varieties :

Kufri Jyothi:White skin.Field resistance to late and early blights,immune to wart and tolerant to viruses. Wide adaptablity.
Kufri chandramukhi:White skinned, and has high dry matter and good keeping quality.
Kufri Bahar:Heavy yielder. Susceptible to late blight.
Kufri Sadabahar:White, oblong, shallow eyed tubers, having white flush.Has got field resistance to late blight.
Kufri Lauvkar:Rapid bulking under warmer conditions.
Kufri Badshah:Resistant to both late and early blights and PVX.
Kufri Lalima:Red tuber and resistant to virus 'X'.

Late Varieties:

Kufri Sindhoori:Essentially short day adapted variety with red tuber. Heavy yielder even on low inputs.
Kufri Khasigaro:Resistant to both late and early blight.
Kufri Dewa:Good keeping quality and resistant to frost.

Processing varieties:

Kufri Himsona:Hybrid.Resistant to late blight .Produces excellent white chips on frying
Kufri chipsona-2:Hybrid. Medium-maturing and resistant to late blight
Kurfi chipsona-3:Hybrid. Easy to cook, has excellent flavour with best aroma when boiled or baked and is free from discoloration after cooking.

Seed varieties :

HPSI/13:
HPS7/13:
Climate & Soil: Can be grown in rainshadow regions of Idukki district. A day temperature of 20-30 degree Celsius is beneficial for growth and tuberisation. Loose frible sandy loam or silt loam rich in organic matter are ideal.
Season: March – April, August – December, January – February
Seed rate: 1000-2000kg seed tubers
Spacing: Tuber or cut pieces weighing 50-60 gm are planted on ridges that are 50-60cm wide, at a spacing of 15-20cm between the plants.
Nutrient management : Basal application of FYM (20t/ha) is required at the time of field preparation. Apply 60 Kg N, 100 Kg P2O5 and 120 Kg K2O as basal. Topdressing with 60 Kg N 30 days after planting recommended.
Crop Management: Earthing up 30 DAP and 70 DAP required. Irrigation required.
Pest Management :

• Cut worm: Dust carbaryl 105 days after planting.
• Leaf eating caterpillar: Spray carbaryl 0.2%.
• Aphids, Jassids: Spray dimethoate @ 1ml/l.

Disease Management :

• Earlyblight:Spray zineb 2gm/l.cultivate resistant varieties.
• Late blight:The most serious potato disease worldwide.Destroys leaves, stems and tubers.Spray copper fungicides, cultivate resistant varieties.

Harvesting: Early maturing varieties can be harvested 80 days after planting and late varieties by 110-120 days after planting.
Yield: 15-18 t/ha