Solid phase radioimmunoassay for the quantitation of abscisic acid in plant crude extracts using a new monoclonal antibody. - Vernieri, ,P.,.; Perata, ,P.,.; Armellini, ,D.,.; Bugnoli, ,M.,.; Presentini, ,R.,.; Lorenzi, ,R.,.; Ceccarelli, ,N.,.; Alpi, ,A.,.; and Tognoni, ,F.. (Journal Plant Physiology, 1989)