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Published on: October 12, 2015
VARIABILITY AND CHARACTER ASSOCIATION IN ROSE COLOURED LEADWORT (PLUMBAGO ROSEA Linn.)
A Kurian1, C A Anitha, E V Nybe
1College of Horticulture, Kerala agricultural University, Vellanikkara-680 656, Kerala, India.
Plumbago rosea accessions show significant variability in traits like root yield and plumbagin content. Promising varieties, PR 25 and PR 31, can be identified by vegetative growth and smaller leaf size.
Area of Science:
- Agricultural Science
- Botany
- Pharmacognosy
Background:
- Plumbago rosea is a medicinal plant known for its therapeutic properties.
- Variability in medicinal plant accessions is crucial for crop improvement.
- Plumbagin is a key bioactive compound in Plumbago rosea.
Purpose of the Study:
- To evaluate variability in morphological and yield-related characters of Plumbago rosea accessions.
- To assess plumbagin content variability among different accessions.
- To identify promising Plumbago rosea accessions for cultivation and further research.
Main Methods:
- Collected 45 Plumbago rosea accessions from Kerala, India.
- Evaluated morphological traits, yield-related characters, and plumbagin content.
- Analyzed character associations using correlation studies.
Main Results:
- Significant variability was observed for most characters, except leaf size.
- Accessions PR 25 and PR 31 showed high root yield and plumbagin content.
- Yield positively correlated with vegetative growth but negatively with leaf size.
Conclusions:
- Plumbago rosea exhibits substantial genetic diversity in Kerala.
- Accessions PR 25 and PR 31 are identified as superior for root yield and plumbagin production.
- Selection for high-yielding Plumbago rosea can be based on vegetative growth and reduced leaf size.
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