Effect of Harvesting by Cutting Heights on Growth and Yield of Kalmegh (Andrographis paniculata (Burm. f.) Nees) New Shoot Which Grown Remain Root Stock โสมนันทน์ ลิพันธ์

Abstract

The objective of the study was to determine the effect of harvesting by different cuttings the stem height on growth and yield of Kalmegh. The experiment was conducted at Faculty of Agricultural Technology, King Mongkut’s Institute of Technology, Ladkrabang, Bangkok during June to December, 2018. Six treatments of cutting height at 0, 10, 20, 30, 40 and 50 cm above ground level in a randomized complete block design with 4 replications were employed. The results showed that the plant height, dry weight of new leaf and leaf dry weight yield of Kalmegh grown under cutting height at 10 cm gave the highest and followed by cutting at the higher above ground level, respectively. Kalmegh was death for 10 days after cutting close to the ground (cutting height at 0 cm). However, it was concluded that Kalmegh is suitable for cutting height at 10 cm above ground level for the highest leaf yield from the new shoot.