Hoffmann A J, Alliende M C
Laboratorio de Botánica, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Casilla 114-D, Santiago, Chile.
Oecologia. 1984 Jan;61(1):109-114. doi: 10.1007/BF00379095.
Interactions between vegetative growth and reproduction were evaluated in Peumus boldus, Lithraea caustica and Laretia acaulis, three woody dioecious species in central Chile. Phenological observations were made periodically on marked branches of male and female plants, and biomass allocation (dry weight) to vegetative and reproductive tissues was measured. The magnitude of flowering was evaluated in groups of plants in three successive seasons. The patterns of activities are species- and sex-dependent, and cycles of 2-4 years have been established. Branches that produce flowers either do not grow or grow less than branches without flowers, and males and females have differential resource allocation: male branches attain higher biomass values. Groups of plants show seasonal behavior that suggest synchrony in their reproductive activities.
在智利中部的三种木本雌雄异株植物——波多胡椒、毒漆木和无茎拉雷亚中，对营养生长与生殖之间的相互作用进行了评估。定期对雄性和雌性植株的标记枝条进行物候观测，并测量营养组织和生殖组织的生物量分配（干重）。在连续三个季节里，对成组植株的开花程度进行了评估。活动模式因物种和性别而异，并且已经确定了2至4年的周期。开花的枝条要么不生长，要么比不开花的枝条生长得少，而且雄性和雌性具有不同的资源分配：雄性枝条的生物量值更高。成组植株表现出的季节性行为表明它们的生殖活动是同步的。
