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Climate Change Risks to Global Forest Health: Emergence of Unexpected Events of Elevated Tree Mortality Worldwide
global forests dynamic global vegetation models forecasting forest assessment remote sensing mortality mechanisms hotter drought
2023/11/30
Recent observations of elevated tree mortality following climate extremes, like heat and drought, raise concerns about climate change risks to global forest health. We currently lack both sufficient d...
Inhibiting effect of shallow seed burial on grass weed emergence
weed control seedling emergence
2016/2/22
The efficacy of superficial tillage as a sustainable tool to reduce the emergence of Digitaria sanguinalis, Setaria viridis, and Sorghum halepense was evaluated with field experiments. Seeds were buri...
Seedbank and Field Emergence of Weeds in Glyphosate-Resistant Cropping Systems in the United States
Community structure corn cotton glyphosate-resistant multivariate analysis Non-metric Dimensional Scaling
2015/12/21
A segment of the debate surrounding the commercialization and use of glyphosate-resistant (GR) crops focuses on the theory that the implementation of these traits is an extension of the intensificatio...
Effect of gibberellic acid on germination capacity and emergence rate of Sycamore maple (Acer pseudoplatanus L.) seeds
sycamore maple seed quality vitality stratification pre-sowing treatment seed humidity
2015/8/27
Seedlots of sycamore maple (Acer pseudoplatanus L.) originating from three different provenance regions were collected in autumn 2012. The seed quality, namely vitality and germination rate, was asses...
Emergence of quarantine Tobacco ringspot virus in Impatiens walleriana in the Czech Republic
TRSV RT-PCR quarantine pathogen
2015/7/28
Tobacco ringspot virus (TRSV) is a quarantine pathogen in Europe. During an official inspection in November 2011, Impatiens walleriana plants showing symptoms were found in a nursery in the Czech Repu...
Spring phenology of cockchafers, Melolontha spp. (Coleoptera: Scarabaeidae), in forests of south-western Germany: results of a 3-year survey on adult emergence, swarming flights, and oogenesis from 2009 to 2011
light trap soil eclector maturation feeding
2015/5/5
Cockchafers are among the most dreaded insect pests in many European countries, causing economic
losses in agriculture, horticulture and forestry. In forests of south-western Germany, populations of...
Germination and emergence response of specifi c Douglas fi r seed lot to diff erent temperatures and prechilling duration
stratification germination capacity emergence rate
2015/5/5
One of the critical points of Douglas fir seedling production is to optimize the time of sowing and length
of pre-sowing treatment. Germination and emergence of Douglas fir seed lot of the Czech ori...
Prediction of Adult Western Corn Rootworm (Diabrotica virgifera virgifera LeConte) Emergence
corn insect pest Zea mays L.
2015/3/10
The sum of effective temperatures (SET) of adult western corn rootworm (WCR) occurrence was determined
based on several criteria. The risk of WCR occurrence was mapped, and the areas of continuous r...
Seed treatment with GA3 or stratification enhances emergence of some strawberry tree genotypes: Short communication
Arbutus unedo generative propagation dormancy
2015/3/3
The strawberry tree is a valuable ornamental plant because of its attractive red fruits in the fall and winter, and pinkish-white flowers in fall. Additionally, its fruits are processed into various p...
Effect of soil applied herbicides and depth of sowing on common cocklebur (Xanthium strumarium L.) and maize (Zea mays L.) emergence and early growth
Xanthium strumarium L. Zea mays L. herbicides
2015/3/1
Greenhouse trials were conducted during 2005 to investigate the effect of six soil applied herbicides on common cocklebur (Xanthium strumarium L.) sowed at a depth of 4 cm and 7 cm, and determine the ...
The emergence of a atrazine resistant black nightshade (Solanum nigrum L.) biotype and molecular basis of the resistance
black nightshade Solanum nigrum L. resistance atrazine chlorophyll fluorescence emergence genetic variation
2015/1/30
Seeds from atrazine resistant plants of black nightshade (Solanum nigrum L.) were collected at the railway station Prague-Vršovice, seeds from susceptible plants in Vyšehořovice (Prague...
Possibilities of pre-emergence and post-emergence herbicide applications in Prunella vulgaris L. growth
Prunella vulgaris L. Lamiaceae pre-emergence herbicide
2015/1/21
Possibilities of herbicide applications to the self-heal (Prunella vulgaris L.) growth were tested in 1997–1998. Experiments showed that the application of pre-emergence herbicides in the Prunella vul...
Seed emergence of lucerne varieties under different soil conditions
germination hard seed lucerne Medicago sativa soil effect
2014/2/25
The aim of this study was to examine in greenhouse experiments seed emergence of 14 lucerne varieties (mostly of the Czech origin) under different soil conditions (Luvisol, Chernozem and Cambisol). So...
Effects of Cymbopogon citratus (lemon grass) and Ocimum suave (wild basil) applied as mixed and individual powders on the eggs laid and emergence of adult Callosobruchus maculatus (cowpea bruchids)
Cymbopogon citratus Ocimum suave Callosobruchus maculatus,
2011/1/12
Post harvest losses of cowpea grain are a serious problem, in Africa, as much as 20 - 50% of grain is lost because of infestation due Callosobruchus maculatus (Cowpea bruchids). Plant mixtures contain...
Seed priming, genotype and sowing date effects on emergence, growth and yield of wheat in a tropical low altitude area of Zimbabwe
Seed priming sowing date varieties wheat yield components
2011/1/12
Low wheat yields in low altitude tropical areas result from short winter seasons, late planting and poor stand establishment. Field experiments were carried out over two winter seasons (2005 and 2006)...