![]() Pinaster resistant to Armillaria root rot. This is the first time variography and kriging are used to select P. According to a theoretical semivariogram, the patch size of the disease incidence was ∼63 m wide. Ostoyae were found, with low individual ( h i 2 = 0.08) and moderate family ( h f 2 = 0.35) heritability estimates. Microsoft Office 2003 Proofing Tools Arabic. Pinaster families in terms of mortality to A. The spatial structure of disease incidence was modelled, and the probability of survival was corrected by kriging at each tree location.Ĭumulative mortality 3 years after planting was 65.1 per cent. We used variography and kriging methods to describe the spatial distribution of the infection probability and the genetic variation of the resistance to A. Ostoyae impeded proper analysis of the disease incidence. Pinaster seedlings, spatial heterogeneity and autocorrelation of neighbour mortality caused by A. Abstract Armillaria ostoyae is an important disease of Pinus pinaster in north-west Spain, which kills trees following a heterogeneous spatial structure.
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