caa a22 4500 463218086 CHVBK 20180405153203.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s11056-006-9037-0 doi (NATIONALLICENCE)springer-10.1007/s11056-006-9037-0 Field performance potential of a somatic interior spruce seedlot [Elektronische Daten] [Steven Grossnickle, Raymund Folk] This study defined the field performance potential for 34 genotypes that composed a somatic seedlot of interior spruce (Picea glauca (Moench) Voss×Picea engelmannii Parry ex. Engelm.) crosses, white spruce (P. glauca (Moench) Voss) crosses, or a mixture. Each genotype was measured for morphological attributes: height, diameter, shoot dry weight, root dry weight, shoot-to-root ratio, height-to-diameter ratio at time of lifting. Each genotype was also measured for physiological attributes of cuticular transpiration (TFDcut), osmotic potential at turgor loss point (Ψtlp) and freezing tolerance (index of injury at −6°C and −4°C; II@−6 & II@−4) during inactive and active shoot growth phases. Shoot growth potential (SGP=length of new leader elongation) and root growth potential (RGP) were conducted under four environmental regimes: nutrient-rich/well-watered, nutrient-poor/well-watered, low root temperature, and planting stress conditions. The somatic seedlot met target height, diameter and RGP standards for a plantable seedling crop in British Columbia, Canada, though genotypes differed in morphology at time of lifting. These genotypes also differed in their measured physiological attributes (TFDcut, Ψtlp, II@−6 and II@−4) at time of lifting and during active shoot growth. Genotypic differences were also found for SGP and RGP under different testing environments. A stock quality assessment program describing elite genotypes within a seedlot can aid foresters in applying benefits of clonal forestry. Springer Science+Business Media, Inc., 2007 Stock quality assessment nationallicence Somatic embryogenesis nationallicence Picea species nationallicence Grossnickle Steven CELLFOR Inc., #4 6772 Oldfield Rd., V8M 1R3, Saanichton, BC, Canada aut Folk Raymund CELLFOR Inc., #4 6772 Oldfield Rd., V8M 1R3, Saanichton, BC, Canada aut New Forests Kluwer Academic Publishers 34/1(2007-07-01), 51-72 0169-4286 34:1<51 2007 34 11056 https://doi.org/10.1007/s11056-006-9037-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11056-006-9037-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Grossnickle Steven CELLFOR Inc., #4 6772 Oldfield Rd., V8M 1R3, Saanichton, BC, Canada aut NATIONALLICENCE 700 1- Folk Raymund CELLFOR Inc., #4 6772 Oldfield Rd., V8M 1R3, Saanichton, BC, Canada aut NATIONALLICENCE 773 0- New Forests Kluwer Academic Publishers 34/1(2007-07-01), 51-72 0169-4286 34:1<51 2007 34 11056 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer