annals-of-botany
Drought effects on apple tree shoot development and ontogeny
Chen et al. investigate the impact of a summer water stress on tree development and organ growth in three apple cultivars at tree, shoot and organ
annals-of-botany
Explaining seed bank size of an invasive shrub
Bakker et al. find a positive relationship between plant size (V) and seedbank size (S), the SV relationship, using the invasive shrub Ulex europaeus as an
annals-of-botany
Heterochrony in reproductive development among P. rufum cytotypes
Apomixis in angiosperms is associated with polyploidy and hybridity. In Paspalum rufum, some sexual diploids show apomixis potential. As apomixis seems to derive from a deregulation
annals-of-botany
Benefits of within-species diversity on crop mixtures
Like positive effects of species diversity, genetic diversity may have strong positive effects on agricultural ecosystems and positively influence production and species abundances in multispecies covers.
annals-of-botany
Cytogeography of Cystopetris fragilis complex
The widely distributed Cystopteris fragilis brittle bladder-fern, complex is a challenging system for studying polyploid evolution, cytotype diversity, distribution and ecology. Hanušová et al. screen
annals-of-botany
Function of the pleurogram
Water-impermeable seeds have structures (“water gaps” or lens in legumes) for detecting environmental cues that cause them to become water-permeable (nondormant). Physical dormancy is
annals-of-botany
Ancient barley landraces adapted to marginal soils are tolerant to manganese limitation
Locally adapted landraces provide unique genetic resources to raise grain yields in poorly-fertile marginal soils. Schmidt et al. evaluate the tolerance to manganese deficiency for
annals-of-botany
Pea seed testa and its role during the establishment of physical dormancy
A water-impermeable testa may act as a barrier to seed imbibition, imposing dormancy. Janská et al. test six pea accessions of contrasting dormancy type for
annals-of-botany
Evolutionary constraints on disparity of ericaceous pollen grains
Flowering plants show a high diversity of pollen morphology. This diversity is assumed to reflect not only variations in the underlying design, but also stress imposed
annals-of-botany
Improving sugarcane’s resilience to salinity and drought
Crops like sugarcane, rice, wheat and maize rely on irrigation. As they’re so thirsty, they are also susceptible to drought. Finding a way to protect
annals-of-botany
Ecophysiology of early lineage vascular plants
Tropical understory communities are highly diverse, and plants in these environments must optimize functional traits to ensure ecological and evolutionary success. Campany et al. survey the
annals-of-botany
Xylem conductivity after mechanical damage
Vessel size and density are known to adjust in broadleaf plants after mechanical damage to stem or roots. This significantly alters the hydraulic conductivity of xylem