title: SOME FEATURES OF Pinus pumila (Pall.) Reg. AND Pinus armandii Franch. SEED FORMATION IN THE CONDITIONS OF INTRODUCTION
abstract: Female cone structure in two species -Pinus pumila (Pall.) Reg. and Pinus armandii Franch. in the conditions of introduction are presented in this paper. It has been demonstrated that number of scales and fertile/sterile scales index are similar to those in their native areas. At the beginning of the second year development (February) female gametophytes in both species were at freenuclear stage and only in some P. armandii ovules alveolar stage was noticed. It was found out that the main reason
journal: The Journal Agriculture and Forestry