Naslov
The effects of drought at various times of the growing season on height growth and leaf senescence of a goat willow clone

Autori
Bačurin, Marko ; Čehulić, Ivica ; Katičić Bogdan, Ida ; Bogdan, Saša ;

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
"Forestry Science for Sustainable Development - FORS2D", Perspectives of forestry and related sectors as drivers of sustainable development in the post- Covid era / Kapović-Solomun, Marijana ; Dukić, Vojislav ; Govedar, Zoran ; Stupar, Vladimir ; Mataruga, Milan ; Marčeta, Dane ; Petrović, Danijela - Banja Luka : Faculty of Forestry, University of Banja Luka, 2022, 133-133

ISBN
978-99938-56-51-1

Skup
Forestry science for sustainable development (FORS2D)

Mjesto i datum
Banja Luka, Bosna i Hercegovina, 29.09.2022. - 30.09.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Salix caprea L., phenology shift, stress

Sažetak
Previous studies have shown that drought stress, among other things, results in reduced height growth and leaf phenology alterations in many forest tree species. However, we were interested whether there are variations in those effects if drought stress was induced at different times of a growing season. A female goat willow tree was cloned by hardwood cuttings. 151 ramets were divided into eight groups. Seven groups were exposed to drought stress, but at different times during a growing season, from early March to mid- July. The eighth group was the control. Each ramet was exposed to drought until the appearance of stress symptoms, when the treatment was stopped, and the plant was rehydrated. Control ramets were watered regularly. Plant heights were measured at the beginning and end of the growing season, and autumn leaf phenology was scored with an ordinal scale of 1-5. Data on height increment and the day of a year when a ramet was in the phenophase 3 (more than 50% of dead leaves) were used for statistical analysis. The average height increment of most groups was lower than the control group, though only groups 5 and 6 (exposed to drought in late May/early June) differed significantly. The first four groups (exposed to drought from early March to early May) showed a delayed leaf senescence date. However, only the first group significantly differed from the control. This study indicates variations of drought effects on forest trees, depending on the part of the growing season when the stress occurs.

Izvorni jezik
Engleski

Znanstvena područja
Šumarstvo

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