Results 31 to 40 of about 28,145 (167)
Risk assessment for Birds and Mammals
Abstract The European Commission asked EFSA to revise the Guidance on the risk assessment for birds and mammals. That guidance described how to perform risk assessment for birds and mammals from plant protection products, containing pesticide active substances, in accordance with Regulation (EU) 1107/2009.
European Food Safety Authority (EFSA)+12 more
wiley +1 more source
Controlled freezing studies as a corollary selection method for winterhardiness in perennial flax
Abstract Perennial flax (Linum spp.) breeding objectives at the University of Minnesota (UMN) are to develop agronomic (oilseed, fiber) and horticultural (cut flower, garden perennial) varieties that are hardy in Minnesota (USDA Plant Hardiness Zones 3 and 4).
David G. Tork+3 more
wiley +1 more source
Can omic tools help generate alternative newer sources of edible seed oil?
Abstract There are three pathways for triacylglycerol (TAG) biosynthesis: De novo TAG biosynthesis, phosphatidylcholine‐derived biosynthesis, and cytosolic TAG biosynthesis. Variability in fatty acid composition is mainly associated with phosphatidylcholine‐derived TAG pathway. Mobilization of TAG‐formed through cytosolic pathway into lipid droplets is
Parimalan Rangan+2 more
wiley +1 more source
Using δ15N to screen for nitrogen fixation: Reference plant position and species
Abstract The δ15N natural abundance technique is frequently used to quantify the proportion of legume nitrogen derived from atmospheric fixation (%Ndfa). This method compares the δ15N of a legume with a nonlegume reference plant to estimate the %Ndfa. For accurate estimations, it is recommended to pair each legume plot with a nonlegume reference plant ...
Amanda Cox+4 more
wiley +1 more source
In a study of 43 plant species, the most consistent response to density was an increase in the proportion of biomass allocated to roots, suggesting that intraspecific competition was mainly for below‐ground resources. Our results further show that growth conditions, species characteristics and their interactions influence patterns of biomass allocation
Finn Rehling+3 more
wiley +1 more source
Abstract In 1814, A.W. Roth received a herbarium collection of some 1500 plants from Benjamin Heyne. Most of these specimens came from southern India where Heyne had worked as a doctor and naturalist since 1792. Roth wrote up the material in his book Novae plantarum, which was published in 1821.
I.M. Turner
wiley +1 more source
Intrusive growth of sclerenchyma fibers [PDF]
Intrusive growth is a type of cell elongation when the rate of its longitudinal growth is higher than that of surrounding cells; therefore, these cells intrude between the neighboring cells penetrating the middle lamella.
Ageeva, M.V.+5 more
core +1 more source
Litter decomposes slowly on shaded steep slope and sunny gentle slope in a typical steppe ecoregion
Soil temperature and moisture, solar radiation, and plant species diversity varied by terrain (i.e., slope incline and directional aspect), which in turn, affected the litter mass loss and release of carbon, nitrogen, and phosphorus. Abstract Plant litter decomposition is mainly affected by litter properties and environmental factors, but the influence
An Hu+5 more
wiley +1 more source
International Code of Phytosociological Nomenclature. 4th edition
The new edition of the ICPN will become effectively binding on 1 January 2021. It consists of 14 Definitions, 7 Principles, 53 Articles, and 7 Appendices. Some Articles bring important amendments, among which the acceptance of electronic publications or the possibility to request a binding decision on controversial cases. Abstract The fourth edition of
Jean‐Paul Theurillat+8 more
wiley +1 more source
Pollen, Plant Macrofossils, and Insects from Fossil Woodrat (Neotoma Cinerea) Middens in British Columbia [PDF]
Bushy-tailed woodrats (Neotoma cinerea) occur commonly in cliffs, rock talus, and caves in the open Pseudotsuga menziesii and Pinus ponderosa forests throughout interior British Columbia. Fossil N.
Cannings, Robert A.+2 more
core +1 more source