SENNA PPT.pptx
- 1. Dr. KHUSHBOO DUBEY DEPARTMENT OF PLANT PATHOLOGY ASSISTANT PROFESSOR JNCU,BALLIA
- 2. SENNA( Sonamukhi) • Senna - Cassia angustifolia Vahl. Family-Leguminosae/Fabacae • Economic parts- Leaves and pods Major constituents- Sennoside A, B, C, D Uses-Laxative
- 3. Varieties • KKM (Se) 1, • ALFT-2, • Sona are suitable varieties for cultivation. • KKM (Se) 1 is suitable for cultivation under rainfed conditions in Tirunelveli and Tuticorin regions.
- 4. Soil and climate • it is grown in well drained sandy or sandy loam or laterite soils. • It is a hardy warm weather crop grown under rainfed and irrigated conditions. • The soil pH suited for cultivation is 7.0 – 8.5.
- 5. Seed rate • About 15 - 20 kg/ha of seed is required. • The seeds are scarified with sand or can be soaked overnight in water and sown in beds at a spacing 45 x 30 cm.
- 6. Season • The planting spreads from February - March and June - July.
- 7. Manuring . Apply FYM 10 - 15 t/ha and N, P and K at 40:40:40 kg/ha as basal. Apply 40 kg N at 40 days after sowing.
- 9. After cultivation One or two weedings is required
- 10. Plant protection Pest Aphids • spray dimethoate 30 EC or methyl demeton 25 EC at 1 ml/lit of water to control the pest.
- 11. Diseases • Leaf spot It can be controlled by spraying 0.50 % of Carbendazim at fortnight intervals • Damping off It can be controlled by seed treatment with Carbendazim (1 g/kg of seed)
- 12. Harvest • The first harvest of leaves and pods are done at 2 months after sowing and subsequent harvests at 30 days interval. • Leaves and pods are dried for 7 - 10 days. •
- 13. Post harvest handling • Harvested leaves and pods are spreaded in a ventilated room until it reaches 10 % moisture. • Sun drying is avoided to prevent the loss of Sennosides
- 14. Grading • in the market, three or four grades of senna are recognised based upon size and colour • Grade A / first grade: The extra large and bold leaves and pods having yellowish green colour • Grade B /second grade: Produce having brownish leaves and pods • Grade C /lower grade: Smaller and broken leaves and pods
- 15. Yield Irrigated Dried leaves : 2 t/ha. Dried pod : 150 - 200 kg/ha. Rainfed Dried leaves : 1 t/ha. Dried pods : 75 - 100 kg/ha.