Effect of complement substrates on growth, yield and medicinal component extracted of Angelica acutiloba Kitagawa planted in An Toan commune, An Lao district, Binh Dinh province
Abstract
Angelica acutiloba plant, an important medicinal plant in many traditional medicines, was imported to Viet Nam in 1990 and planted in several locations. Japanese Angelica was planted in An Toan commune, An Lao district, Binh Dinh province from 2015, but the quality is not hight. The experiment was conducted to examine the effect of complement substrates on growth, yield and medicinal component of Angelica acutiloba planted in this area . The experiment was set up in a randomized completed block design with 4 treatments and three replications, including the control – no complement substrate, 100kg.ha -1 coconut coir added, 100kg.ha -1 rice husk added, and mixture of 50kg coconut coir + 50kg rice husk added per hectare. The results showed that the complement of 100 kg rice husk per hectare increased plant height, leaf size, primary root size, secondary root size, fresh and dry root weight (134.89g and 54.33g.plant -1 respectively), fresh and dry root yield (9.208 kg and 3.733 kg.ha -1 respectively), and hight medicinal component extracted (49.66%). Therefore, the complement of 100kg rice husk added per hectare should be suitable to Japanese Angelica cultivation in the local area.