Spikelet seed position-dependent effects on life history

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Spikelet seed position-dependent effects on life history - Eremopyrum distans
Eremopyrum distans

The cold desert annual grass Eremopyrum distans exhibits position-dependent effects of seeds in the spikelet. Wang et al. (pp. 95–105) find that seeds from three positions in a spikelet differ in morphology, mass and in percentage and rate of seed germination, and the plants derived from them differ in growth and seed production. Distal seeds appear to represent a ‘high-risk’ life history strategy and basal seeds a ‘low-risk’ strategy.

Reference

A. B. Wang, D. Y. Tan, C. C. Baskin, J. M. Baskin, 2010, 'Effect of seed position in spikelet on life history of Eremopyrum distans (Poaceae) from the cold desert of north-west China', Annals of Botany, vol. 106, no. 1, pp. 95-105 http://dx.doi.org/10.1093/aob/mcq089


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