Effects of nursery environment on needle morphology of Pinus monticola Dougl. and implications for tree improvement programs |
| |
Authors: | Woo Kwan-Soo Fins Lauren McDonald Geral I. Wenny David L. Eramian Aram |
| |
Affiliation: | (1) Department of Forest Resources, University of Idaho, Moscow, 83844-1133, USA;(2) Rocky Mountain Research Station, USDA Forest Service, 1221 South Main Street, Moscow, 83843, USA;(3) Coeur d'Alene Nursery, USDA Forest Service, 3600 Nursery Road, Coeur d'Alene, 83814, USA |
| |
Abstract: | Statistically significant differences were found in 14 needle traits of western white pine (Pinus monticola Dougl.) seedlings grown from the same seed orchard source in the three nurseries in northern Idaho. Traits with significant variation included needle length and width, number of stomatal rows, number of stomata per row, total stomata per needle, adaxial surface area, stomatal density, major axes of stomata, stomatal shape, stomatal area, stomatal occlusion, epistomatal wax degradation, weight of wax per dry weight of needle, and the contact angles of water droplets placed on adaxial needle surfaces. Wax crystallites on needle surfaces were hollow and tubular and the amount of surface wax appeared to be associated with surface wettability. Our results may have important implications for tree improvement programs that require successful inoculation of nursery-grown seedlings with spores of Cronartium ribicola J. C. Fisch. ex Rabenh. to reliably screen white pines for resistance to blister rust. |
| |
Keywords: | Cronartium ribicola J. C. Fisch. ex Rabenh Pinus monticola Dougl. Stomatal occlusion Wettability White pine blister rust |
本文献已被 SpringerLink 等数据库收录! |
|