Korpelainen Helena
Department of Genetics, University of Helsinki, Arkadiankatu 7, SF-00100, Helsinki, Finland.
Oecologia. 1992 Jan;89(1):133-139. doi: 10.1007/BF00319025.
Patterns of resource allocation in the dioecious Rumex acetosa and R. acetosella were investigated. Males were found to allocate more to reproduction during flower production than females, whereas females invested considerably more in reproduction during seed production. Altogether, females allocated both a higher total amount and a higher proportion of energy to reproduction than did males. By regression analysis, the influence of plant size on reproductive effort was examined separately for males and females. The results indicated that while reproductive effort is sometimes lower for tall plants than for small plants, size-independent effects have a greater influence on reproductive effort than size distribution. An analysis of variance was conducted to investigate the effects of population, season, sex and their interactions on plant size, and an analysis of covariance was used to study differences in resource allocation patterns. Different interaction effects were found to be most important in the two species of Rumex.
对雌雄异株的酸模和小酸模的资源分配模式进行了研究。结果发现，在花期，雄性植株比雌性植株在繁殖方面投入更多；而在种子形成期，雌性植株在繁殖方面的投入则要多得多。总体而言，雌性植株在繁殖方面分配的总能量和能量比例均高于雄性植株。通过回归分析，分别考察了植株大小对雄性和雌性植株繁殖投入的影响。结果表明，虽然有时高大植株的繁殖投入低于矮小植株，但与大小分布相比，与大小无关的因素对繁殖投入的影响更大。进行了方差分析以研究种群、季节、性别及其相互作用对植株大小的影响，并采用协方差分析来研究资源分配模式的差异。结果发现，不同的相互作用效应在这两种酸模中最为重要。
