🌷 Periwinkle
Periwinkle cultivation for medicinal alkaloids, planting methods, and harvest management.
Periwinkle is a high-value medicinal plant cultivated for anticancer and cardioactive alkaloids present in leaves, stems, and roots.
Crop Importance
Catharanthus roseus contains several alkaloids; the most notable are vincristine and vinblastine, used in oncology.
It also contains ajmalicine, serpentine, and related compounds with additional medicinal relevance.
Climate and Soil
The crop is hardy and adaptable, performing best in tropical to subtropical climates.
Preferred field conditions:
- Deep, well-drained sandy loam to loam.
- Avoid waterlogging and strongly alkaline conditions.
Nutrient and Crop Management
- FYM or green-manure support improves growth.
- Balanced NPK supports biomass and alkaloid yield.
- Initial weed control is essential.
- Limited irrigations help in low-rainfall zones.
Pests, Diseases, and Harvest
The crop is relatively hardy, but dieback, leaf spots, wilt, and occasional pest attack can appear under favorable disease conditions.
Harvesting strategy:
- Leaf stripping in stages where required.
- Full plant/root harvest around one year for root market.
- Shade drying and proper lot separation for drug quality.
Summary Cheat Sheet
| Topic | Exam Key Point |
|---|---|
| Scientific name | Catharanthus roseus |
| Family | Apocynaceae |
| Major anticancer alkaloids | Vincristine, Vinblastine |
| Economic parts | Leaves, stems, roots |
| Adaptation | Hardy, suitable for marginal land |
| Crop duration | About 12 months for root harvest |
References
2 sources • [1] [2]
References
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