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

Keywords

Weedemergenceplanting depthdormancyIAQTA
Type
Research Article
Information
Weed Science , Volume 31 , Issue 5 , September 1983 , pp. 727 - 730
Copyright
Copyright © 1983 Weed Science Society of America 

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References

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