PLANT NAME: JACKFRUIT
Scientific Name: Artocarpus heterophyllus
Variety: Lalbagh Madura
Salient Features: A wonder Jack fruit clone, selected at Lalbagh Botanical Garden, Bangalore. The fruits are big, greenish yellow colour, oblong; contain very big sized bulbs of light yellowish colour. The bulbs are crispy and have superb taste and flavour and have a distinct acid: sugar blend. The gum content is less.
Season: Bears fruit twice a year, during November- January and May- August.
Uses & Health benefits:
- Have several properties that may help with blood sugar management.
- Has a fairly low glycaemic index (GI)
- Compounds in the flesh seeds and other parts of the plant may have the potential to treat or prevent several health issues.
Soil and climate:
Deep well drained soil is necessary for jack cultivation. Soil pH around 5.5-7 at the time of planting is desirable. The crop comes up well in the plains and up to an elevation of 1200 m.
Propagation:
Budding and Soft wood grafting
Preparation of field and planting:
Dig pits of 1 m x 1 m x 1 m. Fill up the pits with top soil mixed with 10-15 Kg of FYM and 1 Kg of neem cake per pit. Plant preferably grafts during June – December.
Spacing: 20ft x 20 ft spacing.
Irrigation:
Once in a week till the plant gets established. Thereafter irrigation is given as and when necessary.
Manures and fertilizers:
The manures and fertilizers should be applied in two splits during May – June and September – October.
| Manures & Fertilizers(In Kgs) | 1 year old | Annual Increase | 6th year and above |
| FYM | 10.000 | 10.000 | 50.000 |
| N | 0.150 | 0.150 | 0.750 |
| P | 0.080 | 0.080 | 0.4000 |
| K | 0.100 | 0.100 | 0.500 |
Plant protection:
Pest
1.Fruit borer: Apply Carbaryl 50 WP @ 2 g/lit.
2. Spittle bug
Spray methyl parathion 50 EC 2ml/lit or Methyl demeton 25 EC @ 2ml/lit. or Phosphamidon 40 SL 2 ml/lit or dust Methyl parathion 2 D or Quinalphos dust 1.5 D.
Disease
Rhizopus rot
Spray 1 % Bordeaux mixture or Copper oxychloride 2.5 g/lit. Three sprays must be given at 15 days interval.
Harvest
The yield commences from 3rd year in grafts. Harvest is done twice a year during November- January and May- August.