The Germination Performance After Dormancy Breaking of Leucaena diversifolia (Schltdl.) Benth. Seeds in a Thermal Gradient and Its Distribution Under Climate Change Scenarios

Climate change models predict temperature increases, which may affect germination, an important stage in the recruitment of individuals in agroecosystems. Therefore, it is crucial to conduct research on how temperature will impact the germination of multipurpose native species. Leucaena diversifolia...

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Vydané v:Plants (Basel) Ročník 13; číslo 20; s. 2926
Hlavní autori: Flores, Andrés, Flores-Ortíz, Cesar M., Dávila-Aranda, Patricia D., Rodríguez-Arévalo, Norma Isela, Sampayo-Maldonado, Salvador, Cabrera-Santos, Daniel, Gianella, Maraeva, Ulian, Tiziana
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Switzerland MDPI AG 01.10.2024
MDPI
Predmet:
Agricultural ecosystems
Agroforestry
Beans
cardinal temperatures
Cattle feeds
Climate change
Climate change models
Climate models
Climate prediction
Climatic changes
Comparative analysis
Distribution
Dormancy
Environmental aspects
Fabaceae
Geographical distribution
Germination
Growth
Indigenous species
legume
Legumes
Leucaena
Mimosaceae
Phenology
Physiological aspects
Precipitation
Seed germination
seed testing
Seeds
Temperature
Temperature gradients
thermal time
Mexico
cardinal temperatures
seed testing
legume
thermal time
Fabaceae
climate change
ISSN:2223-7747, 2223-7747
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Shrnutí:Climate change models predict temperature increases, which may affect germination, an important stage in the recruitment of individuals in agroecosystems. Therefore, it is crucial to conduct research on how temperature will impact the germination of multipurpose native species. Leucaena diversifolia (Schltdl.) Benth. is native to America and is commonly cultivated around the world due to having a high protein content in seeds, and their trees are used in agrosilvopastoral systems because they fix nitrogen and provide shade and cattle feed. However, climate change affects the critical phases of its life cycle and influences its growth, reproduction, phenology, and distribution. To assess the germination performance of Leucaena diversifolia under different temperatures throughout thermal times, we estimated germination variables and determined cardinal temperatures and thermal time; we also analysed germination and potential distribution under two climate change scenarios. We found significant variations in seed germination (78–98%) and differences in cardinal temperatures (Tb = 5.17 and 7.6 °C, To = 29.42 and 29.54 °C, and Tc = 39.45 and 39.76 °C). On the other hand, the sub-optimal and supra-optimal temperature values showed little differences: 51.34 and 55.57 °Cd. The models used showed variations in germination time for the analysed scenarios and the potential distribution. We confirm that the populations and distribution of L. diversifolia will be altered due to climate changes, but the species retains the ability to germinate under warmer conditions.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:2223-7747
2223-7747
DOI:10.3390/plants13202926