Physiology and Molecular Biology of Plants

, Volume 22, Issue 3, pp 407–413 | Cite as

Seasonal variations in harvest index and bacoside A contents amongst accessions of Bacopa monnieri (L.) Wettst. collected from wild populations

Research Article


Bacoside A, a major active principle of Bacopa monnieri known for its cognitive effects is a mixture of saponins like bacoside A3, bacopaside II, isomer of bacopasaponin C and bacopasaponin C. Seasonal changes in biomass and bacoside A levels in fourteen accessions of B. monnieri were evaluated after maintaining these at a common site at Thapar University campus, Patiala (30°19′36.12″N and 76°24′1.08″E) for 1 year. Harvestable biomass and total bacoside A contents varied significantly between the accessions and also in a particular accession during different seasons of the year. The maximum dry weight of plant (biomass 1.64 g) and bacoside A levels (6.82 mg/plant) were recorded in accession BM1. Harvestable biomass was highest during summer in accessions BM1 and BM7 (FW 4.2 g/plant), whereas bacoside A levels were also highest during summer and in accession BM1 (6.82 mg/plant). The lowest bacoside A level (0.06 mg/plant) was recorded in accession BM14 during winter. Principal component analysis showed that samples of summer were positively correlated with both the components suggesting an appropriate time for the harvest.


Bacoside A Harvest index Memory enhancer Relative growth rate 



Authors are thankful to University Grant Commission (UGC), Govt. of India, New Delhi for the financial assistance. Thanks are also due to TIFAC-CORE, Thapar University Patiala for the facilities to carry out this work.


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Copyright information

© Prof. H.S. Srivastava Foundation for Science and Society 2016

Authors and Affiliations

  • Mahima Bansal
    • 1
  • M. Sudhakara Reddy
    • 1
  • Anil Kumar
    • 1
  1. 1.Department of Biotechnology, TIFAC-Center of Relevance and Excellence in Agro and Industrial Biotechnology (CORE)Thapar UniversityPatialaIndia

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