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Jack
Botanical Name – Artocarpus heterophyllus.
Family – Moraceae

Varieties

Velipala, Singapore, Hybrid jack, Panruti selection, Thanjavur jack, Burliar 1, PLR 1
and PLR (J) 2 and PPI 1.

Soil and Climate

Soil –

Deep well drained soil is necessary for jack cultivation. Soil pH around 5.5 at the time of planting is desirable. Otherwise treat the soil with 1% Aluminium sulphate in the pit to reduce the pH. The crop comes up well in the plains and up to an elevation of 1200 m. 

Climate-

Climatic and soil requirements Jack grows well and gives good yield in warm humid climate of hill slopes and hot humid climate of plains. The crop grows successfully from sea level upto an elevation of 1200 M at an optimum temperature range of 22-35o C. It cannot tolerate frost or drought.

Propagation

Softwood grafting approach grafting method: Large scale propagation of jack can be
done by cleft grafting during July – August on 4 month old seedling rootstock

Preparation of field andPlanting

Dig pits of 1 m x 1 m x 1 m in size. Fill up the pits with top soil mixed with 10 kg of
FYM and 1 kg of neem cake per pit. Plant preferably grafts during June – December at 8 x 8
m spacing.

Irrigation

Once in a week till the plant is established. Thereafter irrigate as and when
necessary

Plant Protection- Pest

Spittle bug  Spread yellow sticky sheets to trap bugs (3ftx2ft)
 Methyl demeton 25 EC 2 ml / lit.
 Quinalphos 1.5 % D

Diseases

Rhizopus rot
 Spray 1 % Bordeaux mixture or copper oxychloride @ 2.5 g/l three times at 15 days
interval

Harvest

Yield commences from 5
th year in grafts and 8
th year in seedling trees. Harvest during
March-July.

Yield

30-40 t / ha

Market Information

Growing Districts: Cuddalore, Kanyakumari, Dindigul, Pudukottai,Namakkal, Tirunelveli, Nilgiris
Major Markets in Tamil Nadu: Panruti, Coimbatore
Preferred Varieties and Hybrids: PLR 1 and Local