Results 21 to 30 of about 1,164,648 (294)

Anthropogenic seed dispersal: rethinking the origins of plant domestication

open access: yes, 2020
It is well documented that ancient sickle harvesting led to tough rachises, but the other seed dispersal properties in crop progenitors are rarely discussed. The first steps toward domestication are evolutionary responses for the recruitment of humans as
Spengler, R.
core   +1 more source

A performant bridge between fixed-size and variable-size seeding [PDF]

open access: yesBMC Bioinformatics, 2019
Abstract Background Seeding is usually the initial step of high-throughput sequence aligners. Two popular seeding strategies are fixed-size seeding (k-mers, minimizers) and variable-size seeding (MEMs, SMEMs, maximal spanning seeds). The former strategy supports fast seed computation, while the latter one benefits from a high seed entropy ...
Kutzner, Arne   +2 more
openaire   +3 more sources

Testing mechanisms of compensatory fitness of dioecy in a cosexual world [PDF]

open access: yes, 2019
Questions: All else being equal, populations of dioecious species with a 50:50 sex ratio have only half the effective reproductive population size of bisexual species of equal abundance. Consequently, there is a need to explain how dioecious and bisexual
Du, Y   +10 more
core   +2 more sources

Crop size influences pre-dispersal seed predation in the Brazilian Cerrado

open access: yesActa Botânica Brasílica, 2017
Many pre-dispersal seed predators are specialized insects that rely on seeds for larval development. These insects may respond to the amount of seeds produced by a plant (i.e.
Alexander V. Christianini
doaj   +1 more source

The relationship between shape and size of diaspores depends on being seeds or fruits [PDF]

open access: yes, 2019
The relationship between the size and shape of diaspores was investigated in angiosperms and gymnosperms including determining if being a seed or fruit was a factor. Size was expressed as volume and shape as the departure from a perfect idealized sphere.
Dias, A.S., Dias, L.S.
core   +1 more source

Ground beetles (Coleoptera: Carabidae) as predators of conifer seeds

open access: yesFolia Oecologica, 2019
Many species of ground beetles (Coleoptera: Carabidae) are important predators of seeds. While the consumption of herb seeds has been intensively studied, little attention has been paid to the consumption of seeds of gymnosperm plants.
Martinková Zdenka   +4 more
doaj   +1 more source

Variations on Classical and Quantum Extractors [PDF]

open access: yes, 2014
Many constructions of randomness extractors are known to work in the presence of quantum side information, but there also exist extractors which do not [Gavinsky {\it et al.}, STOC'07].
Berta, Mario   +3 more
core   +3 more sources

Sketch-based Influence Maximization and Computation: Scaling up with Guarantees [PDF]

open access: yes, 2014
Propagation of contagion through networks is a fundamental process. It is used to model the spread of information, influence, or a viral infection.
Chen W.   +4 more
core   +1 more source

Soybean seed germination and initial seedling growth as affected by seed size [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2013
Soybean seed size can have a major effect on the quality of seeds. Beside the effect that seed size has on 1000-grain weight, it can also affect other seed quality parameters. Some authors suggest it can be expected that larger seeds have better quality.
Kostić Miladin   +6 more
doaj  

Rapid analysis of seed size in Arabidopsis for mutant and QTL discovery

open access: yesPlant Methods, 2011
Background Arabidopsis thaliana is a useful model organism for deciphering the genetic determinants of seed size; however the small size of its seeds makes measurements difficult. Bulk seed weights are often used as an indicator of average seed size, but
Baldwin Samantha   +3 more
doaj   +1 more source

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