نتایج جستجو برای: quercus petraea
تعداد نتایج: 6971 فیلتر نتایج به سال:
Extracting fungal mRNA from ectomycorrhizas (ECMs) and forest soil samples for monitoring in situ metabolic activities is a significant challenge when studying the role of ECMs in biogeochemical cycles. A robust, simple, rapid, and effective method was developed for extracting RNA from rhizospheric soil and ECMs by adapting previous grinding and lysis methods. The quality and yield of the extra...
Seasonal changes in carbon and nitrogen compound concentrations in a Quercus petraea chronosequence.
Forest productivity declines with tree age. This decline may be due to changes in metabolic functions, resource availability and/or changes in resource allocation (between growth, reproduction and storage) with tree age. Carbon and nitrogen remobilization/storage processes are key to tree growth and survival. However, studies of the effects of tree age on these processes are scarce and have not...
Oak lace bug ( Corythucha arcuata ) has continuously spread through Europe since its appearance in 2000, and it become a dangerous pest of Quercus species most countries. Despite high abundance the surrounding countries was found West Ukraine only 2020. During our investigation carried out 2020 OLB detected all studied large forest patches Ukrainian part Carpathian Lowland. These were one newes...
How temperate forests will respond to climate change is uncertain; projections range from severe decline to increased growth. We conducted field tests of sessile oak (Quercus petraea), a widespread keystone European forest tree species, including more than 150 000 trees sourced from 116 geographically diverse populations. The tests were planted on 23 field sites in six European countries, in or...
Oak regeneration in temperate forests often fails the presence of understorey grass. Competition by resource exploitation between plants has been extensively studied. By contrast, competition interference, especially chemical interference (allelopathy), much less thoroughly examined and its relative importance remains unclear. We investigated influence allelopathic interaction on plant performa...
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