Effects of harvest frequency on leaf biomass and triterpenoid content of Centella asiatica (L.) Urb from Madagascar
Voninavoko RAHAJANIRINA, Miadana Harisoa FARAMALALA, Edmond ROGER, Cyrille ZEBROWSKI, Jean Michel LEONG POCK TSY and Pascal DANTHU
Research Paper I Published January,2016
Journal of Agricultural Science and Food Technology
ABSTRACT
Centella asiatica, is a wild plant used extensively
for its healing properties. In order to establish a rational
management, the present study evaluates the effects of time
and rate of collection on biomass yield and content of
active ingredients. Six collection frequencies were
considered (monthly, bi monthly, quarterly, four-monthly,
semi-annual and annual). This study shows that the yield of
leaf biomass and content of active ingredients vary
seasonally according to rainfall, increasing during the
rainy season (November to April).The reconstruction of the
biomass is maximal if collections are spaced at least three
to four months apart. The annual recurrence of repetitive
collections causes a loss of productivity of leaf biomass,
is significant in the second year of operation. These
results offer the best compromise between least effort
required for gathering by farmers and greatest yield of
biomass and active material, advocating a rate of quarterly
collection during the rainy season.
Key Words:
Centella asiatica,
inter-annual variability, leaf biomass, Madagascar, seasonal
variability, triterpenoid yields.
- Journal of Agricultural Science and Food Technology (JASFT)
- Journal of Medical and Biological Science Research (JMBSR)
- Journal of Scientific Research and Essays (JSRE)
- Research Journal of Educational Studies and Review (RJESR)
- Journal of Physical Science and Environmental Studies (JPSES)
- Research Journal of Engineering and Technology (RJET)
- Pearl Journal of Management, Social Science and Humanities (PJMSSH)