NIGERIAN JOURNAL OF SCIENCE AND ENVIRONMENT
Journal of the Faculties of Science and Agriculture, Delta State University, Abraka, Nigeria
ISSN: 1119-9008
DOI: 10.5987/UJ-NJSE
Email: njse@universityjournals.org
GERMINATION BEHAVIOUR OF CROTON LOBATUS L., EMILIA SONCHIFOLIA L. AND S. ANTHELMIA L.
DOI: 10.5987/UJ-NJSE.17.094.1 | Article Number: 93880D17 | Vol.12 (1) - May 2013
Author: Chukwu M. N.
Studies on germination of C. lobatus, E. sonchifolia, and S. anthelmia were carried out in the laboratory. The influence of 12hour L – D photoperiod and continuous darkness, soaking in water, soil moisture, water soluble extracts of plants’ leaves and temperature on the germination of the seeds of the weed species were examined. Light enhanced the germination of E. sonchifolia seeds, but inhibited those of C. lobatus and S. anthelmia seeds. Soaking increased the percentage germination of S. anthelmia seeds while aqueous extracts of their leaves inhibited or enhanced the germination of their seeds. Their percentage germination increased with decreasing soil moisture regime 20 % soil moisture being the most favorable for germination.
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