RJ25008Influence of selected environmental variables on the germination of Eucalyptus costata
We examined germination conditions for the common Mallee species Eucalyptus costata. Our study found that germination was lowest at high temperatures (35°C/25°C), high salinity (>100 mM), and low water potentials (taking 14 MPa of humidity per day to germinate). Sowing seed deeper than 2 cm reduced emergence. These results suggest that the optimal germination is likely to occur with shallow sowing in low-salinity soils during cool or mild wet conditions. Despite being an arid species, Eucalyptus costata is intolerant of hot and dry conditions, and planting should be focused on mild and wet periods.
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