Results 221 to 230 of about 116,110 (259)

Seed size–seed number trade‐offs: influence of seed size on the density of fire‐stimulated persistent soil seed banks

American Journal of Botany, 2022
AbstractPremiseDoes the seed size–seed number allocation trade‐off model apply to long‐term persistent soil seed banks? This trade‐off between seed size versus number of seeds produced is usually applied at a single population on an annual basis. Our question is how this model might apply to close relatives that produce dormant seed forming long‐term ...
V. Thomas Parker, Stephen B. Ingalls
openaire   +2 more sources

The Efficiency of In Vitro Differentiation of Primate iPSCs into Cardiomyocytes Depending on Their Cell Seeding Density and Cell Line Specificity [PDF]

International Journal of Molecular Sciences
Stoyan Petkov, Rüdiger Bèhr
exaly   +2 more sources

Densities of melon seeds, kernels and hulls

Journal of Food Engineering, 1989
Abstract True density, bulk density and apparent density of the seeds, kernels and hulls of commercial varieties of muskmelon, longmelon and watermelon were determined. There is a significant difference between the apparent densities of kernels and of seeds.
M.S. Teotia, P. Ramakrishna
openaire   +1 more source

Seed harvesting is influenced by associational effects in mixed seed neighbourhoods, not just by seed density

Functional Ecology, 2013
Summary Rodents frequently forage in a density‐dependent manner, increasing harvesting in patches with greater seed densities. Although seldom considered, seed harvesting may also depend on the species identities of other individuals in the seed neighbourhood. When the seed harvest of a focal species increases in association with another seed species,
Steven M. Ostoja, Eugene W. Schupp, Susan Durham, Rob Klinger   +3 more
openaire   +1 more source

SEED PREDATION AND SELECTION EXERTED BY A SEED PREDATOR INFLUENCE SUBALPINE TREE DENSITIES

Ecology, 2008
Strongly interacting species often have pronounced direct and indirect effects on other species. Here we focus of the effects of pine squirrels (Tamiasciurus spp.), which are a dominant pre-dispersal seed predator of many conifers including limber pines (Pinus flexilis) and whitebark pines (P. albicaulis).
Adam M, Siepielski, Craig W, Benkman
openaire   +2 more sources

A Density-Based Seed-Centric Community Detection Algorithm

2016 13th Web Information Systems and Applications Conference (WISA), 2016
Although many different community detection algorithms have been proposed to detect community structures in complex networks, how to effectively detect community structures is still a great challenge. Seed-centric methods is one of the most effective solutions for community detection.
Wei Liu, Mei Chen, Kun Liu, Yang Zhou, Xiaoyun Chen   +4 more
openaire   +1 more source

Robust partitional clustering by outlier and density insensitive seeding

Pattern Recognition Letters, 2009
The leading partitional clustering technique, k-means, is one of the most computationally efficient clustering methods. However, it produces a local optimal solution that strongly depends on its initial seeds. Bad initial seeds can also cause the splitting or merging of natural clusters even if the clusters are well separated. In this paper, we propose,
Mohammad Al Hasan, Vineet Chaoji, Saeed Salem, Mohammed J. Zaki   +3 more
openaire   +1 more source

Principles for Microwave Moisture and Density Measurement in Grain and Seed

Journal of Microwave Power and Electromagnetic Energy, 2004
The importance of cereal grain moisture content in determining time of harvest and in preserving grain quality is described. Techniques for moisture measurement, including electronic moisture meters, are also discussed briefly, and the need for better moisture sensing techniques for modern agricultural on-line moisture monitoring is described ...
Stuart O, Nelson, Samir, Trabelsi
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Seed Density and Germination

1982
The following list gives the average number of clean seeds per kilogram and the average percentage of germination.
openaire   +1 more source

Density-dependent germination response by seeds of desert annuals

Oecologia, 1980
Field observations and experiments indicate that the presence of seedlings at high densities inhibits subsequent germination of desert annuals. Since plants growing at high densities face severe competition for limited resources, this response by seeds is interpreted as an adaptation to avoid an unfavorable competitive climate where growth and ...
openaire   +2 more sources