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.
Study authors argue that suppression of one or both genes in different regions of the rachis prevented disarticulation.
For the first time, estimates of comparative seed yield and number for over 800 annuals and their predictor equations have been produced and the ecological importance of these regenerative traits has been illustrated.
Breeding effects on development phases in durum wheat During crop development, certain apical developmental phases are more critical than others in terms of generating final yield. Isidro et al. analyse how apical...
Copyright © 2010 - 2023.
botanyone
Erin Zimmerman
Juniper Kiss
