クロマツ,アカマツにおける落果と受粉

概要

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Unpollinated cones dropped abundantly in many trees of P. thunbergii, while unpollinated cones set well in many trees of P. densiflora. Remarkable as this difference between two pine species was, the variation of cone drop on individual trees within species was also found to be not little (Table 2). Though cones dropped abundantly, if not pollinated, and so parthenocarpy could be hardly induced in many pine trees, as compared with many other coniferous trees, the difference of cone drop between and within species seemed also to exist among many pine trees besides these two species.
東京大学大学院農学生命科学研究科附属演習林,The Tokyo University Forestsの論文