Morpho-Physiological Evaluation of Andrographis paniculata at Different Growth Stages

Abstract

A field experiment was conducted on Andrographis paniculata (during Kharif season 2007), at Dusty acre farm of JNKVV, Jabalpur. The experiment was laid out using randomized complete block design with four replicates. The samples were collected at seven different growth stages. The results were evaluated on the basis of growth analytical parameter (viz, Leaf area, Leaf area index, Crop growth rate, Relative crop growth rate, Leaf area duration, Biomass duration and Specific leaf area) as well as morpho-physiological (viz, Plant height, No. of leaves, No. of branches, plant fresh weight, plant dry weight, leaves fresh and dry weights and herbage yield) parameters. The result revealed that all the selected parameters goes on increasing with crop growth stages. However, the specific leaf area increases up to 90 DAS and there after it gradually decline up to 120 DAS indicating the maturity of crop.