Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
December, 2015 Special Anniversary Review Issue.  Vol. 4(12): pp. 851-857
Copyright © 2015 Global Advanced Research Journals

 

Full Length Research Paper

Growth and dry matter partitioning of Andrographis paniculata to different light intensities and pruning

Nur Faezah, Oa, Siti Aishah, Ha,*, Puteri Edaroyati, M.Wa, Ramlan, M.Fa, Puad, M.A.b

 

aDepartment of Crop Science, b Department of Cell and Molecular Biology, University Putra Malaysia, 43400 Serdang, Selangor.

Email: s_aishah@upm.edu.my

Accepted 20 November, 2015

 

Abstract

Studies indicate that the physiological aspects and growth pattern under different light intensities can affect the composition and quality of herbs. The objective of this study was to determine the effect of shade level and method of pruning to optimize high dry herbage yield per hectare of Andrographis paniculata. A factorial experiment was arranged in split plot design with three replications. The following shade levels: 0, 20%, 30% and 50% were the main plot while number of pruning: 0, 1 times and 2 times were the sub plot. Both factors, shade levels and pruning showed significant interaction effect on total leaf area, shoot fresh weight and shoot dry weight. Root fresh weight and dry weight were not influenced by both factors. Shoot fresh weight and shoot dry weight showed significant increase with the increase in shade levels. Meanwhile the lowest shoot dry weight was recorded from plant grown under full sunlight. Method of pruning significantly produced higher shoot fresh weight by 18.6% and shoot dry weight by 15.4% compared no unpruned plant. A .paniculata grown under shade and undergone one time pruning would help in higher biomass production.

KeywordsAndrographis paniculata, light intensity, method of pruning, biomass production.

 


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