Home
  >  
Section 69
  >  
Chapter 68,764

Effect of drought stress on the yield and composition of volatile oils of drought-tolerant and non-drought-tolerant clones of Tagetes minuta

Mohamed, M.A.-H.; Harris, P.J.; Henderson, J.; Senatore, F.

Planta Medica 68(5): 472-474

2002


ISSN/ISBN: 0032-0943
PMID: 12058333
DOI: 10.1055/s-2002-32072
Accession: 068763924

A drought-tolerant clone of Tagetes minuta L. (Asteraceae) was selected in vitro on a medium containing 60 mM mannitol. In the greenhouse, a decrease in soil field capacity (FC) from 100 to 40 % reduced oil yield by 49, 71 and 71 % for drought-tolerant, non-drought tolerant cloned and seed-grown plants, respectively. In soil at 40 % FC, the drought-tolerant clone had the highest leaf dry weight and oil yield. At 100 % FC, there was no significant difference in leaf dry weight, but the drought-tolerant clone had a significantly higher percentage oil content and yield than seed-grown plants. The main components of the oil were monoterpenes of which trans- and cis-tagetone together were 52.3 % - 64.2 %. Drought significantly altered the content of some oil components.

PDF emailed within 0-6 h: $19.90