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Germination Behavior of Florida Pusley Seeds. II. Effects of Germination-Stimulating Chemicals

Published online by Cambridge University Press:  12 June 2017

K. B. Paul ,
J. L. Crayton  and
P. K. Biswas
K. B. Paul
Affiliation:
Dept. of Plant and Soil Sci., Tuskegee Inst., AL 36088
J. L. Crayton
Affiliation:
Dept. of Plant and Soil Sci., Tuskegee Inst., AL 36088
P. K. Biswas
Affiliation:
Dept. of Plant and Soil Sci., Tuskegee Inst., AL 36088
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Abstract

Freshly harvested seeds of Florida pusley (Richardia scabra L.) require light for germination. Gibberellic acid (GA3) successfully replaced the light requirement of both scarified and unscarified seeds, while cyclic 3′,5′-adenosine monophosphate (C-AMP) stimulated the dark germination of scarified seeds only. Cold-stratification reduced seed germinability. The germination inhibition by cold-stratification was reversed by both GA3 and KNO3 treatments. Indole-3-acetic acid (IAA), kinetin, thiourea, and acetylcholine (ACh), either had no effect or reduced the germination percentages of Florida pusley seeds under all conditions studied.

Information

Type
Research Article
Information
Weed Science , Volume 24 , Issue 4 , July 1976 , pp. 349 - 352
Copyright
Copyright © 1976 by the Weed Science Society of America 

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References

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