Canadian Forest Service Publications
Production en cônes et semences d'un peuplement de pin gris de 65 ans de la région boréale du Québec. 1970. Popovich, S.; Demers, A.; Gagnon, J.D. Nat. Can. 97 : 553-558.
Issued by: Laurentian Forestry Centre
Catalog ID: 15805
Availability: PDF (download)
Cone and seed production, and quality of seeds obtained from a 65-year-old Jack Pine (Pinus divaricate (Ait.) Dumont) stand in the Québec Boreal Forest Region have been studied. Analyses carried out on 23 plots of 1/40 acre each numbering between 320 and 640 trees per acre indicate that : 1) sample plots of 330 to 490 stemps per acre produce the highest quantity of seeds; 2) production per acre is 33.2 bushels of cones and 9.6 pounds of seeds; 3) average production of full and viable seed is for dominant trees 15 and 10 respectively, and 5 and 3 for intermediate ones; 4) cones 3 years old or younger produce better quality seeds than older ones.