| Autor: |
RUGUZOVA, Ganna, POKHYLCHENKO, Olga, IVANOVA, Irina, YAREMCHUK, Yurii |
| Předmět: |
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| Zdroj: |
Agriculture & Forestry / Poljoprivreda i šumarstv; 2016, Vol. 62 Issue 4, p203-212, 10p |
| Abstrakt: |
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 for ovules abortion is lack of pollination. However, ovules abortion was also noticed at the second year and its reasons need to be studied in details. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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