01320nas a2200133   4500008004100000245008700041210006900128300001800197490000700215520081400222100001601036700001701052856011701069       1998                        eng d00aFactors affecting seed and cone development in Pacific sliver fir (Abies amabilis)0 aFactors affecting seed and cone development in Pacific sliver fi  a1146-1163    0 v283 aThe reproductive development from pollination until seed maturity for Pacific silver fir (amabilis fir; Abies amabilis (Dougl. ex Loud.) Dougl. ex J. Forbes) was studied at two sites in British Columbia. The major causes of cone loss were frost at pollination and insect damage following pollination. The seed potential per cone was 359-408, but the filled seeds per cone based on cutting tests and X-raying was only 18-22%. The major causes of seed loss were insect damage (32-39%) during ovule and seed development and failure of ovules to be pollinated (26-31%). Although the amount of insect damage was similar at both sites, damage at Site 1 was primarily caused by Megastigmus sp. larvae in the seeds whereas at Site 2, damage was to seeds, scales, and the cone axis and due to Earomyia abietum larvae. 1 aOwens, J.N.1 aMorris, S.J.  uhttps://lonchaeidae.myspecies.info/factors-affecting-seed-and-cone-development-pacific-sliver-fir-abies-amabilis