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Large-seeded spices are less dependent on light for germination than small-seeded ones
TLDR
Germination became less dependent on light with increasing seed mass, and analysis of direct correlation and phylogenetically independent contrasts suggests that light response and seed mass coevolved. Expand
Seed size, shape and vertical distribution in the soil: indicators of seed longevity
1. We investigated the vertical distribution of seeds in the soil, using data from nine studies in five European countries. We discovered significant correlations between seed shape and distributioExpand
Soil Seed Bank after Eighteen Years of Succession from Grassland to Forest
TLDR
The vegetation and seed bank were studied in an 18-yr-old, replicated experiment with grazed and ungrazed plots in a semi-natural, perennial grassland in southern Sweden, finding that the ground vegetation had become less diverse, but on a larger scale few species had been lost. Expand
Interference by the weed Parthenium hysterophorus L. with grain sorghum: Influence of weed density and duration of competition
TLDR
The substantial variation in yield and yield loss between sites and years illustrates the problems of attempting to give well-established, accurate recommendations for threshold densities and critical periods in small-scale, rain-fed agriculture. Expand
Variation in seed dormancy among mother plants, populations and years of seed collection
TLDR
It is concluded that variation in seed dormancy among mother plants, populations and years must be taken into account when testing the germination characteristics of a species and also when attempting to model weed seed bank dynamics. Expand
The impact of logging intensity on field-layer vegetation in Swedish boreal forests
The relationship between logging intensity and changes in ground cover vegetation was studied in 16 species and groups of species recorded at 10- or 11-year intervals in mature conifer-dominatedExpand
Weed flora and the relative importance of site, crop, crop rotation, and nitrogen
TLDR
The relative importance of site, crop, crop rotation, and nitrogen application rate on the weed flora was determined and the greatest difference was found between sites, and the second most important factor was crop species. Expand
How much and at what scale? Multiscale analyses as decision support for conservation of saproxylic oak beetles
TLDR
The main general conclusions were: (i) a multi-scale approach is especially valuable to identify the characteristic scale of response; and that assuming a joint, single scale for all species may result in very poor decision support. Expand
Germination ecology of the weed Parthenium hysterophorus in eastern Ethiopia
TLDR
It is suggested that there are no obvious climatic conditions that may limit the germination of Parthenium hysterophorus in Ethiopia, but a high moisture requirement of the seeds for germination could be the major factor limiting germination during the dry season. Expand
Weed flora in arable fields of eastern Ethiopia with emphasis on the occurrence of Parthenium hysterophorus
Weed flora in arable fields of eastern Ethiopia with emphasis on the occurrence of Parthenium hysterophorus
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