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University of Nebraska - Lincoln
Architectural effects hypothesis; flower retention; fruit abortion; life-history strategy; resource alloca- tion; sink strength hypothesis; yucca; Yucca glauca.
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Presence Of Fruits Decreases Probability Of Retaining Flowers In A Sequentially Flowering Plant, Shivani Jadeja, Brigitte Tenhumberg
Presence Of Fruits Decreases Probability Of Retaining Flowers In A Sequentially Flowering Plant, Shivani Jadeja, Brigitte Tenhumberg
School of Biological Sciences: Faculty Publications
Both intrinsic and extrinsic plant processes affect the fate of flowers along an inflorescence in sequentially flowering plants. We investigated whether the intrinsic process of competition for limited resource between fruits and flowers owing to resource preemption or sink strength of basal fruits, or architectural effects due to posi- tional differences in the probability of retaining flowers, explains a lower probability of retaining distal flowers inYucca glauca. Further, we investigated how the extrinsic process of seed herbivory interacts with the plant’s intrinsic processes of flower retention. We carried out a field experiment to compare flower retention among nine combi- nations …