Effect of Harvesting on Active Ingredient and Yield of Centella asiatica (L.) Urb. เกษร แช่มชื่น สุรพงษ์ อนุตธโต และ พินิจ เขียวพุ่มพวง

Abstract

Centella asiatica (L.) Urb. is a herb plant with high commercial potential and has a market opportunity to generate income for farmers. It is popularly used for consumption and processed into many products. It is rich in antioxidant that have many therapeutic effects. However, its yield gives irregular an active ingredient which its name is asiaticoside. So, the objective of these study was to examine the effect of harvesting on active ingredient and growth yield of Centella asiatica. The experiment was conducted in dry and rainy season in 2020 at Phichit Agricultural Research and Development Center. A randomized complete block design with seven replications consisting of three harvest growth stages (the flowing period of 25, 50 and 75 percent) Results showed that planting in dry and rainy seasons, all three harvest growth stages gave the average asiasicoside 0.17 – 0.19 g per  100 g dry weight and there were no statistical difference.  The harvest at flowering period of 75 percent gave the highest fresh weight yield of 810 and 1,869 kg per rai when planted