Abstract
Statistical analyses of the data revealed very significant differences in androgenesis induction ofA. carnea Hayne anther culture depending on the bud length, nutrient medium composition and age of the parental tree. Significant mutual influence of all these factors was also observed. The highest number of androgenic anthers was obtained when 4 mm long buds were used. Older trees (60 and 100 yrs) gave a higher number of androgenic anthers than the younger ones (20 and 40 yrs). MS medium supplemented with 2,4-d and Kin (1 mg l−1, each) was the most favourable for androgenesis induction. Pollen embryos (haploids and aneuploids) were formed by the division of uninuclear microspores.
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