Comparing the blossoming and wood producing properties of selected black locust clones

Porcsin, Alexandra és Szakálosné Mátyás, Katalin és Keserű, Zsolt (2024) Comparing the blossoming and wood producing properties of selected black locust clones. In: 11TH HARDWOOD CONFERENCE PROCEEDINGS : Sopron, Hungary, 30-31 May 2024. Hardwood conference proceedings . Soproni Egyetem Kiadó, Sopron, pp. 266-270. ISBN 9789633345184

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Absztrakt (kivonat)

Black locust (Robinia pseudoacacia L.) is a tree species introduced from North America, and it’s well known for its positive economical and negative ecological properties, making it one of the most widely distributed tree species in European countries. Despite its rapid growth, its wood is hard and weatherresistant so it can be used, for example, as sawn wood products, barked or belted poles and vineyard posts among others and also as planting material for short rotation energy plantations. Its nectare producing ability is excellent as well, black locust honey can make up to 50% of the whole honey production of Hungary. Unfortunately, increasingly hectic weather conditions, late frosts and the rising frequency of destructive storms caused by climate change, which are nowadays more and more noticeable, have a negative impact not only on nectar production but also on the shape of stem (Jovanović 1967, Herman 1971, Vajda 1974, Rițiu et al. 1988). Consequently, fast-growing species with good stem suckers and high nectar production potential are recommended, taking into account the variable future distribution of black locust in Europe (Boer 2013, Kutnar & Kobler 2013, Guoqing et al. 2014, Giuliani et al. 2015, Dyderski et al. 2017). To decide which cultivars can be used to help the beekeepers as well as foresters, which ones are more resistant to climate change and the biotic and abiotic damages, we need to compare their growth and their blossoming properties. The height of the tree is determined firsthand by genetics, the diameter at breast height is defined by growth space according to most authors but in a recent study Ábri and Keserű (2023) found that the linkage wasn’t significant in terms of juvenile black locust cultivars. There is a trade-off in most plants regarding growth and generative reproduction on the edges of distribution unrelated to whether it’s the dry (South) or the cold (North) end of it (Willy and Buskirk 2022). We must therefore need to find the correlation breakers which won’t show the traits of not only these trade-offs, but those regarding resistant and resilient traits and can be selected by phenotype.

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