Age-age correlations and prediction of early selection age for diameter growth in a 35-years old Pinus brutia Ten. Genetic experiment
نویسندگان
چکیده
Aim of study: Forest geneticists developed various methods to predict an early selection age for forest tree species in order shorten the breeding cycles. This study aims estimate age-age correlations among diameter growth trees at different ages and Pinus brutia Ten. Area P. populations were sampled from most productive distribution range species, which is important eastern Mediterranean Basin. To understand genetic variation determine a common garden experiment was established two test sites near Antalya city, Turkey, 1979. Material methods: Wood increment cores breast height collected 30 years, diameters (dbh) measured 13, 15, 19, 21, 23, 25, 27 years on cores. Diameters ground level (dgl) dbh also live 35. Variance components, correlations, heritability efficiency estimated diameters. Main results: Age-age high (mostly > 0.90). Genetic between dgl (at 35) all measurement ages) ranged 0.84 0.99. Regressions correlation natural log ratio (LAR) juvenile older significant (P < 0.0001). Selection efficiencies by employing prediction equation indicated that rotation 40, optimum would be 3 5 100 it 9 years. Research highlights: The results this provide information can used find brutia. On relatively poor may not attain enough have measurable trait. In such cases, and/or traits (both are highly correlated with instead trait evaluations. Keywords: Correlated response; efficiency; trait-trait correlations; brutian pine.
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ژورنال
عنوان ژورنال: Forest Systems
سال: 2021
ISSN: ['2171-9845', '2171-5068']
DOI: https://doi.org/10.5424/fs/2021303-17745