Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-29T22:30:32.174Z Has data issue: false hasContentIssue false

Smallflower Morningglory (Jacquemontia tamnifolia) Germination as Influenced by Scarification, Temperature, and Seeding Depth

Published online by Cambridge University Press:  12 June 2017

E. Ford Eastin*
Affiliation:
Texas Agric. Exp. Stn., Beaumont, TX 77706

Abstract

Freshly harvested smallflower morningglory [Jacquemontia tamnifolia (L.) Griseb. # IAQTA] seed germinated best after 25 to 60 s of scarification in an electric scarifier equipped with 100 to 120 grit emery cloth. Optimum temperature for germination was 25C. At 10 and 45C no germination occurred for up to 7 days. Eight and 12 days after planting in silt loam soil there was 85 and 98% emergence of smallflower morningglory from depths of 0.5 to 1 cm, whereas no emergence was observed from depths of 6 cm or greater 12 days after seeding.

Type
Research Article
Copyright
Copyright © 1983 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Buchanan, G. A. 1977. Weed biology and competition. Pages 2741 in Truelove, B., ed. Research Methods in Weed Science. South. Weed Sci. Soc., Auburn, AL.Google Scholar
2. Correll, D. S. and Johnston, M. C. 1970. Manual of the Vascular Plants of Texas. Texas Research Foundation, Renner, Texas. 1881.Google Scholar
3. Crowley, R. H. and Buchanan, G. A. 1980. Responses of Ipomoea spp. and smallflower morningglory (Jacquemontia tamnifolia) to temperature and osmotic stresses. Weed Sci. 28:7682.Google Scholar
4. Eastin, E. F. 1981. Hemp sesbania seed germination as influenced by seed treatment and temperature. Texas Agric. Exp. Stn. Misc. Publ. 1480. 7.Google Scholar
5. Eastin, E. F. 1981. Soybean weed control in the Texas Coastal Prairie. Pages 4450 in Sij, J. W., ed. Another Triumph of Research: Soybeans on the Texas Coastal Prairie. Texas Agric. Exp. Stn. Research Monograph 11.Google Scholar
6. Eastin, E. F. 1983. Redweed (Melochia corchorifolia) germination as influenced by scarification, temperature and seeding depth. Weed Sci. 31:229231.CrossRefGoogle Scholar
7. Gleason, H. A. 1968. The New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada. Vol. 3. The Sympetalous Dicotyledoneae. Hafner Publ. Co., New York. 595.Google Scholar
8. Johnston, S. K., Walker, R. H., and Murray, D. S. 1979. Germination and emergence of hemp sesbania (Sesbania exaltata). Weed Sci. 27:290293.Google Scholar