GENETIC-VARIATION IN SHOOT GROWTH COMPONENTS AND THEIR CORRELATIONS IN PSUEDOTSUGA-MENZIESII VAR-MENZIESII SEEDLINGS

Date

1993-01-01

Author

Kaya, Zeki

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Stem-unit measurements could be useful for early selection if these dimensions were highly heritable and strongly correlated with traits of commercial interest, such as height growth. Height increments and the number and length of stem segments were mesured in the first and second growth period in predetermined and free growth of Douglas-fir seedlings from 40 families in each of 2 populations from southwestern Oregon. Populations, or families in populations, exhibited genetic variation in all traits except number of stem units in predetermined growth. Heritabilities for stem-unit measurements were higher than those for height increment in the first growing season, but not in the second. Correlations among measurements of stem units and height increments were only moderate (generally <0.70). Stem units are not likely to be better measurements of height in early selection of Douglas-fir than are measurements of either predetermined or free growth.

Subject Keywords

Forestry

URI

https://hdl.handle.net/11511/41214

Journal

SCANDINAVIAN JOURNAL OF FOREST RESEARCH

DOI

https://doi.org/10.1080/02827589309382750

Collections

Department of Biology, Article

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Citation Formats

Z. Kaya, “GENETIC-VARIATION IN SHOOT GROWTH COMPONENTS AND THEIR CORRELATIONS IN PSUEDOTSUGA-MENZIESII VAR-MENZIESII SEEDLINGS,” SCANDINAVIAN JOURNAL OF FOREST RESEARCH, pp. 1–7, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41214.