Plant and Cell Physiology, 1973, Vol. 14, No. 5 873-879
© 1973
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An effective time for CO2 gas treatment in overcoming self-incompatibility in Brassica1
Faculty of Agriculture, Tohoku University Sendai, Japan
An investigation was made to determine the effective time for CO2 treatment in overcoming self-incompatibility in Brassica. CO2 was effective when supplied to a self-pollinated flower while hundreds of pollen grains were germinating on the stigma. Since the effective time coincides with the attachment of pollen tubes to papilla cells, it is thought that CO2 produces a metabolic change in these cells during attachement.
1Part of a thesis submitted for the Dr. of Agr. degree by the senior author at Tohoku University.
2Present address: Faculty of Agriculture, Kobe University, Nada-ku, Kobe, Japan.
(Received December 7, 1972; )
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