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Letter Published: 03 January 1953 Experimental Induction of Male Cones in Pinus sylvestris P. F. WAREING Nature 171, 47 (1953) Cite this article ...
WAREING1 has reported that in Pinus sylvestris male and female cones are frequently borne on separate shoot systems. Female cones develop first, appearing on strong leading shoots on the main stem ...
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