Physics
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14...53b&link_type=abstract
Advances in Space Research, Volume 14, Issue 10, p. 53-57.
Physics
1
Scientific paper
Rice caryopsis of Cigalon variety with short grain of the LDEF mission can develop and grow as well as those of the laboratory control. Rice caryopsis of Delta variety with long grain did not develop while a small number of excised embryos can develop and grow as well as the control group. A preliminary study of the Electron Spin Resonance (ESR) spectra of Rice embryos and seeds recorded several month after the flight on flight samples and on control ones has been carried out. All these samples had the same storage time. During storage the radical concentration which usually decreases, now depends on irradiation doses and on whether or not they were delivered in presence of oxygen. The signal variations are smaller than those usually observed in the different parts of the starch. An estimation of a ``gamma-equivalent-dose'' can be reached.
Agnel J.-P. L.
Bayonove J. F.
Raffi J. J.
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