00323nam a2200097Ia 4500008004100000082002100041100002300062245009800085260003400183300000800217140113s9999    xx            000 0 und d  a581.1(03)  K1.16  a"Ruhland, W., Ed."  aEncyclopaedia of Plant Physiology. Vol. XVI External factors affecting grwoth and development  a1961bSpringer VerlagcBerlin  a950