Report of the eleventh session of the international poplar commission - Yugoslavia, 28 Aug - 7 Sep 1962 and selected documents of the second Near East poplar conference - Turkey, 18-24 and 26-27 Apr 1962.

breeding methods crecimiento croissance cultural methods extension extension activities farmland forest plantations growth measurement mesure middle east mode de culture moyen orient normalisation oriente medio populus recherche research salix souche d'arbre standardizing stumps terre agricole turkey turquia turquie vulgarisation