584.93DubG Dubois, david maxGenotipic differents in the fructan metablolism in stems of spring wheat d.../*David Max Duboris; J. Nosberger, examiner, N.Amrheim, co-examiner.-- "A disertation submitted to the Swiss Federal Institute of Tecchonology Zurich for the degree of Doctor of Tecnical Sciences" Bibliografía:p. 44-49.1. TRIGO 2. CARBOHIDRATOS 3.GENETICA VEGETAL 4. FISIOLOGÍA VEGETAL I.t.