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
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Abstract

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.

Keywords

Bacoside A Harvest index Memory enhancer Relative growth rate 

Notes

Acknowledgments

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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