The effect of half-sib lines on morphological attributes of one-year old Fraxinus angustifolia seedlings

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Ivona Kerkez
Marina Nonić
Jovana Devetaković
Mirjana Šijačić-Nikolić
Vladan Ivetić


Aiming to produce forest reproductive material at the family level, we tested quality of twenty Fraxinus angustifolia Vahl half-sib lines in the nursery experiment. We measured height (HT) and root collar diameter (DIA) of one-year old seedlings, and we monitored germination rate and mortality during the first growing season. Seeds of 20 half-sib lines originating from Sombor area (north Serbia) were sown in seedbed on autumn 2016. The seed dormancy was not broken in all seeds equally, resulting with un-uniform germination over a two months period. All measured attributes shows a statistically significant differences, indicating a strong effect of genetic control. The highest average and DIA were measured in half-sib line 7 (22.62 cm; 5.79 mm, respectively). The lowest average DIA was measured in half-sib lines 18 (2.85 mm) and 19 (2.94 mm), which can be result of growing density effect (104 seedlings m-2 for line 18 and 126 seedlings m-2 for line 19, compared to 40 seedlings m-2 for line 7). The correlation between DIA and HT is strong and positive (R=0.90). Due to its morphological superiority, half-sib line 7 could be recommended for mass production of Fraxinus angustifolia seedlings at the family level.
Keywords: Height; Root Collar Diameter; Seedlings Quality; Narrow leaved ash


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Kerkez, Ivona, Marina Nonić, Jovana Devetaković, Mirjana Šijačić-Nikolić, and Vladan Ivetić. “The Effect of Half-Sib Lines on Morphological Attributes of One-Year Old Fraxinus Angustifolia Seedlings”. REFORESTA0, no. 5 (July 10, 2018): 15-21. Accessed December 2, 2023.

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