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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 50, Number 1 (2003) → Assessing the Hardiness of Aleppo Pine, Maritime Pine, and Holm Oak Seedlings by Electrolyte Leakage and Water Potential Methods

Assessing the Hardiness of Aleppo Pine, Maritime Pine, and Holm Oak Seedlings by Electrolyte Leakage and Water Potential Methods

Cold and drought hardiness of nursery stock were measured just before planting in the region of Valencia (Spain). A number of stock lots of Aleppo pine (Pinus halepensis Mill.), maritime pine (Pinus pinaster Ait.), and holm oak (Quercus ilex L.) were assessed between December 1994 and February 1997, during 3 planting seasons. Cold hardiness was evaluated by the electrolyte leakage method and whole-plant freeze testing. Drought avoidance was estimated as the drop in predawn water potential after a period without any watering. Both parameters detected nonhardened seedling lots. The electrolyte leakage method was preferred as it was faster. Tree Planters' Notes 50(1): 38-43; 2003.


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Author(s): A. Royol, L. Gil

Publication: Tree Planters' Notes - Volume 50, Number 1 (2003)

Volume: 50

Number: 1