00269nam a2200097Ia 4500008004100000082001500041100002500056245004700081260003500128300000800163140113s9999    xx            000 0 und d  a581.1   K9  a"Wilkins, M.B., Ed."  aPhysiology of plant growth and development  a1969bMcGraw Hill BookcLondon  a695