Indirect selection for resistance to fusiform rust in Loblolly pine

Weissenberg, Kim von

Full text of this article is only available in PDF format.

Kim von Weissenberg

Indirect selection for resistance to fusiform rust in Loblolly pine

Weissenberg K. v. (1973). Indirect selection for resistance to fusiform rust in Loblolly pine. Acta Forestalia Fennica no. 134 article id 7568. https://doi.org/10.14214/aff.7568

Abstract

Indirect selection for resistance is superior to direct selection under certain conditions. The phenotypic correlation was studied between resistance to fusiform rust (Cronartium fusiforme) in loblolly pines (Pinus taeda L.), chosen by a newly-developed stability index, and the amount of resin acids, growth-inhibiting substances, and fatty acids extracted from pine tissue. No association was found between rust resistance and the amount of total or individual resin acids in clones or families. The amount of growth-inhibiting substances present in branches from full-sib families was greater in rust-resistant compared to rust-susceptible families. A strong association was found between resistance and the amount of long-chain fatty acids in four clones. A weak association was found between resistance and the amount of the fatty acid 18:2 in five other clones.

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Keywords
breeding; Pinus taeda; fusiforme rust; Loblolly pine; rust resistance; growth-inhibiting substances

Published in 1973

Available at https://doi.org/10.14214/aff.7568 | Download PDF

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