Distribution of Foliar-applied Boron Measured by Spark-source Mass Spectrometry and Laser-probe Mass Spectrography.
The distribution of foliar-applied boron ([(10)B]boric acid) in radish (Raphanus sativus L.) was studied using for analysis of the stable isotopes a technique allowing a high sensitivity: spark-source mass spectrometry. Boron was recovered in the nontreated aerial parts and in the roots; however, the greatest fraction was in the treated leaf. It was possible with a laser-probe mass spectrograph to show that boron was not superficially located in the treated area but was present in tissues at all levels of depth considered.
Chamel
A R
AR
Laboratoire de Biologie Végétale, Département de Recherche Fondamentale, Centre d'Etudes Nucléaires, 85 X-38041 Grenoble Cédex, France.
Andréani
A M
AM
Eloy
J F
JF