title: Fertility variation and status number in clonal seed orchards of Pinus sylvestris.
abstract: The present study was carried out to evaluate fertility variation, status number and gene diversity based on strobili productions in two clonal seed orchards of Scots pine (Pinus sylvestris L.). There were large differences among clones for the female and male strobili productions in the orchards. Positive and significant (p< or =0.05) correlations were found between female and male strobili production (r = 0.76, 0.55). Female fertility variation (1.03, 1.07) was larger than male fertility variation (1.02, 1.03) in the orchards. The status numbers estimated based on the total fertility were very high (97 and 98% of census numbers). The large fertility variation could be balanced by different treatments such as mixing seed equally from clones or genetinc thinning.
authors.affiliation: Faculty of Forestry, Suleyman Demirel University, Isparta, TR-32260, Turkey.
authors.forename: Nebi
authors.initials: N
authors.lastname: Bilir
authors.forename: Halime
authors.initials: H
authors.lastname: Temiraga
mesh_terms: D002999:Clone Cells; D003247:Conservation of Natural Resources / Q000379:methods*; D005298:Fertility / Q000235:genetics; D018506:Gene Expression Regulation, Plant; D014644:Genetic Variation; D005838:Genotype; D006824:Hybridization, Genetic; D008954:Models, Biological; D010641:Phenotype; D041605:Pinus sylvestris / Q000196:embryology / Q000235:genetics*; D012639:Seeds / Q000235:genetics*