Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 61, Issue 2, Pages 298-303Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfb.2007.09.008
Keywords
drought; growth; medicinal plants; Catharanthus roseus; chlorophyll; carotenoid; anthocyanin; xanthophyll
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An experiment was conducted in two varieties, rosea and alba, of Catharanthus roseus plants with two watering treatments viz., 100 and 60% of field capacity, to understand the effects of water deficit on early growth, biomass allocation and photosynthetic pigment responses. We found that there were significant differences in early growth, dry matter accumulation and pigment variations between the two varieties. The root length, shoot length, total leaf area, fresh and dry weights were significantly reduced under water stress treatments. There was a significant reduction in the photosynthetic pigment contents in both the varieties. The rosea variety was more affected due to water deficit when compared to alba variety. (c) 2007 Elsevier B.V. All rights reserved.
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