Differences in early seasonal growth efficiency and productivity of eucalyptus genotypes

Autor: Veronica Emhart, Hector Valenzuela, Daniel Bozo, Ana Paula Dalla Corte, Thiago Wendling Gonçalves de Oliveira, Rafael Rubilar, Alex Medina, Carlos Roberto Sanquetta, Oscar Mardones, Juan Jose Quiroga
Rok vydání: 2021
Předmět:
Zdroj: New Forests. 53:811-829
ISSN: 1573-5095
0169-4286
Popis: Understanding the changes in early growth efficiency (GE, growth/leaf area) may improve forest production through the selection of appropriate genotypes at early stages. We investigated different early growth responses of genotypes of Eucalyptus globulus (7), E. nitens (3), and E. nitens × E globulus (E. gloni) (7) in south-central Chile. To evaluate seasonal growth, plants of each genotype were established in a completely randomized block design in coarse sandy soil (i.e., low water holding capacity), with spring and summer irrigation. The current monthly increment (CMI) in wood volume (cm3 tree−1 month−1), and leaf area index (LAI, m2 m−2) were used to calculate GE at 4.1, 7.5, 10.4, 13.4, and 15.4 months of age, corresponding to five growing seasons (first summer, fall, winter, spring, and second summer). The interaction between genotype and season had a significant effect (p
Databáze: OpenAIRE
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