Genetic parameters of growth and wood quality traits in Picea abies
作者： Rupert Wimmer , Björn Hannrup , Christine Cahalan , Guillaume Chantre , Michael Grabner
DOI: 10.1080/02827580310019536
关键词: Biology 、 Lignin 、 Tracheid 、 Genetic correlation 、 Heritability 、 Genetic variation 、 Horticulture 、 Botany 、 Coefficient of variation 、 Picea abies 、 Gene–environment interaction
摘要: Genetic parameters were estimated for wood and growth traits in two 19-yr-old clonal trials a 40-yr-old full-sib progeny trial of Norway spruce [Picea abies (L.) Karst.]. In the high (>0.4) broad-sense heritabilities found density traits, lignin content, number internal cracks, spiral grain resin canals. Moderate (0.2–0.4) tracheid lumen diameter cell wall thickness, microfibril angle length, while low (<0.2) pulp yield, fibre strength, stiffness colour. Lignin content yield showed genetic variation, whereas genotypic coefficient variation most other ranged between 5 15%. Most levels genotype by environment interaction. Among properties, latewood proportion, earlywood ring significant, adverse correlations with volume both trials.
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