Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 9:247-249 (1969)
© 1969 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Dehulling and Seed Germination in Vernonia Anthelmintica (L.) Willd.1

C. D. Berry and K. J. Lessman2

Fresh seed of four Vernonia anthelmintica (L.) Willd. selections were (1) untreated (N), (2) water soaked overnight (S), (3) soaked overnight followed by removal of pericarp (SP), or (4) soaked overnight followed by removal of pericarp and seedcoat (SPS). The SP treatment increased germination, but many abnormal seedlings resulted, probably due to seedcoat damage during dehulling. A considerable increase in germination followed the SPS treatment. Average shoot length of resulting seedlings approached that of the few normal seedlings after N and S treatments. The factor(s) inhibitory to the germination of fresh vernonia seed is associated with the seedcoat.

Key Words: Seed treatments • Germination inhibitor • Pericarp • Seedcoat

1 Contribution from the Purdue University Agricultural Experiment Station, Lafayette, Ind. Journal Paper No. 3379. This work was supported in part by Agricultural Research Service, U.S. Department of Agriculture, contract number 12-14-100-8153 (34), administered by the Crops Research Division, Beltsville, Md.

2 Graduate Research Assistant and Associate Professor, Department of Agronomy, Purdue University, Lafayette, Ind. 47907.

Received for publication May 29, 1968.




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