Shoot competition, root competition and reproductive allocation in Chenopodium acuminatum
Ping Wang, Jacob Weiner, James F. Cahill Jr, Dao Wei Zhou, Hong Feng Bian, Yan Tao Song and Lian Xi Sheng
Article first published online: 1 SEP 2014 | DOI: 10.1111/1365-2745.12313
Our results demonstrated that shoot competition affects the observed pattern of reproductive allometry among individuals in the field, and this has implications for the fitness of competing plants. The steeper log R–log V slope of populations competing above ground may intensify the role of directional selection under light competition, making the effects of shoot competition more important than those of root competition for the evolution of weeds in fertile environments.