Results 121 to 130 of about 19,155 (164)
Some of the next articles are maybe not open access.
Energetics of Foraging in Breeding Adelie Penguins
Ecology, 1993We studied foraging energetics in Adelie Penguins (Pygoscelis adeliae) using doubly labeled water (DLW) and time—depth recorders (TDR). Measurements were made during three nesting stages: late incubation, the guard stage (when small chicks were continuously guarded by at least one parent) and the subsequent creche stage (when large chicks were left ...
Mark A. Chappell +4 more
openaire +1 more source
Improving the Focus of Forage Breeding Research
2016Forage crop breeding is particularly exposed to the risks of insufficient focus, owing to challenges and dilemmas arising from the wide diversity of possible bred species, target traits, target environments, crop utilizations, breeding approaches and seed markets, as well as from contrasting demands by farmers, the seed industry and the society ...
Paolo Annicchiarico +2 more
exaly +2 more sources
Breeding forages in Florida for resistance to nematodes
Crop & Pasture Science, 2014Forage legumes and grasses provide the basis for the worldwide ruminant animal livestock industry, and most of these forages come from perennial pasture plants. As animal agriculture has intensified, pest pressures on perennial forages often also become more prevalent.
Kenneth Quesenberry +4 more
openaire +1 more source
1987
The breeding and use of improved forage varieties have progressed rapidly in the last few decades, but this has not always been so. In the United States, the breeding of forage varieties did not receive the same attention in the early part of this century as the breeding of cereal varieties. As late as 1950, seed of many forage species was sold without
openaire +1 more source
The breeding and use of improved forage varieties have progressed rapidly in the last few decades, but this has not always been so. In the United States, the breeding of forage varieties did not receive the same attention in the early part of this century as the breeding of cereal varieties. As late as 1950, seed of many forage species was sold without
openaire +1 more source
Breeding forage grasses for organic conditions
Euphytica, 2008Herbage yield trials are necessary to test if candidate varieties are well suited for organic conditions. In order to elucidate a particular suitability for organic conditions, we run such trials in parallel under both organic and conventional conditions. Here, we report on second and third year results of the sowings 2004 and 2005.
Beat Boller +2 more
openaire +1 more source
Breeding Forage Plants in the Genome Era
2001Forage plant breeding has been largely based on phenotypic selection following sexual recombination of natural genetic variation found between and within ecotypes. Advances in plant genetic manipulation over the last 15 years have provided convincing evidence that these powerful technologies can complement and enhance plant breeding programs ...
G. Spangenberg +5 more
openaire +1 more source
Foraging Strategies and Energetic Costs of Foraging Flights by Breeding Wood Storks
The Condor, 1995Wood Storks (Mycteria americana) were followed (n = 269) from their colony in east-central Georgia to foraging sites to examine the foraging travel strategies of these birds. Most sites were relatively close to the colony (median distance = 8.8 km) requiring short travel times (median time = 22.52 min).
Bryan, A. Lawrence, Jr. +2 more
openaire +1 more source
Breeding and Improvement of Forage Sorghums for the Tropics
1996Publisher Summary Sorghum belongs to the tribe Andropogoneae of the Gramineae family Poaceae. It is a coarse, perennial grass that is treated as an annual in temperate or subtropical climes where cold temperature limits growth and development. In tropical regions, however, it can be harvested many times.
openaire +1 more source
Breeding Methods for Forage and Amenity Grasses
2001The value of grass for amenity and agricultural use is increasing and breeding has been very successful in improving a wide range of important traits. Breeding methods are continuing to develop and are now interacting with techniques based on novel biotechnology in all stages of breeding.
openaire +1 more source