Interior spruce seedlings compared with emblings produced from somatic embryogenesis. III. Physiological response and morphological development on a reforestation site

摘要: Interior spruce (Piceaglauca (Moench) Voss × Piceaengelmannii Parry) seedlings and emblings produced through somatic embryogenesis tissue culture were planted on a reforestation site in the central interior of British Columbia. Gas exchange water relations patterns monitored over first growing season morphological development was two seasons. During shoot elongation, osmotic potential at saturation (Ψsat) turgor loss point (Ψtlp) increased, while their maximum bulk modulus elasticity (emax) total (Ψptotal) decreased, resulting utilized (Ψputil) exceeding 100%. From bud set late July October 8, Ψsat Ψtlp Ψ max ePtotal with Ψputil between 55 70% for both emblings. There few seasonal differences parameters One-year-old current-year needle conductance (gwv) decreased as vapour pressure deficit (VPD)...