Soil temperature and weather factors as key drivers of flowering phenology and nectar production in black locust (Robinia pseudoacacia L.) in Hungary

Porcsin, Alexandra és Ábri, Tamás és Déri, Helga és Zajácz, Edit és Bolla, Bence Kálmán és Szakálosné Mátyás, Katalin és Rédei, Károly Miklós és Keserű, Zsolt (2026) Soil temperature and weather factors as key drivers of flowering phenology and nectar production in black locust (Robinia pseudoacacia L.) in Hungary. JOURNAL OF FOREST SCIENCE, 72 (4). pp. 202-211. ISSN 1212-4834

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Absztrakt (kivonat)

The black locust (Robinia pseudoacacia L.) is the second most planted tree species worldwide, and the most common in Hungary. Phenotypic traits, particularly flowering patterns, are well-established indicators of the species' response to climate change. This study examined four forest subcompartments across three Hungarian regions: Northern-Central, Eastern and Southern-Central. The aim was to identify climatic factors correlating with the onset and duration of the flowering period. Additionally, the relationships between these factors and nectar weight and sugar concentration were defined. Results indicate a strong negative correlation between precipitation levels and flowering time: lower accumulated and average precipitation during the spring months of the preceding year was associated with a delayed flowering period in the following year (r = -0.922, r = -0.918, P = 0.05). However, when examining the 14-day period (r = 0.829) before blooming or examining from 1 January (r = 0.929, r = 0.890), the results indicate that other environmental factors may play a more dominant role. Furthermore, the number of chill and heat days was found to affect the starting date (R² = 0.819, R² = 0.765).

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Mű tipusa:	Cikk
SWORD Depositor:	Teszt Sword
Felhasználó:	Csaba Horváth
A mű MTMT azonosítója:	MTMT:37082658
Dátum:	27 Máj 2026 08:23
Utolsó módosítás:	27 Máj 2026 08:23
URI:	http://publicatio.uni-sopron.hu/id/eprint/4061

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