Article
Reproductive Allocation in Artemisia tridentata ssp. vaseyana: Effects of Dispersion Pattern, Nitrogen and Water
Bulletin of the Torrey Botanical Club
(1988)
Abstract
Two field experiments were performed to determine if reproductive allocation in 3- to 4-year-old Artemisia tridentata ssp. vaseyana (Rydb.) Beetle, mountain big sagebrush, was affected by spatial dispersion pattern and by small additions of water and/or nitrogen fertilizer In the spatial dispersion study, most measures of reproductive allocation were higher for plants growing singly compared to plants growing in clumps of four shrubs. Total achene biomass and the ratio of total reproductive biomass production/vegetative biomass production (a measure of reproductive effort) for 1984 were much higher for plants growing in a regular pattern In the water and nitrogen fertilizer study, addition of water and fertilizer decreased reproductive effort in 1983, while addition of water alone increased reproductive effort in 1984. Different expressions of reproductive effort yielded very different numerical values. Reproductive allocation increased from the first to the second year of the study
Disciplines
Publication Date
1988
DOI
https://doi.org/10.2307/2995953
Citation Information
Neil E. West. "Reproductive Allocation in Artemisia tridentata ssp. vaseyana: Effects of Dispersion Pattern, Nitrogen and Water" Bulletin of the Torrey Botanical Club Vol. 115 Iss. 3 (1988) p. 161 - 167 Available at: http://works.bepress.com/neil_west/156/