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Critical period of weed competition in Egyptian henbane (Hyoscyamus muticus)

Published online by Cambridge University Press:  27 March 2009

A. Singh ,
M. Singh  and
D. V. Singh
A. Singh
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow-226016, India
M. Singh
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow-226016, India
D. V. Singh
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow-226016, India
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Summary

Losses c. off. 95 % in dry herb yields of Egyptian henbane (Hyoscyamus muticusL.) were observed due to natural weed growth in experiments conducted on a sandy loam soil of pH 7·8 during the winter (rabi) seasons 1984/85 and 1985/86 at the Central Institute of Medicinal and Aromatic Plants, Lucknow. The period between 30 and 75 days after sowing was most critical for weed competition, when weeds with 12·5% of their total growth (in terms of dry matter) reduced henbane dry herb yields by 60%.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 113 , Issue 1 , August 1989 , pp. 115 - 118
Copyright
Copyright © Cambridge University Press 1989

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References

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