Results 71 to 80 of about 116,015 (216)

Anholocyclic overwintering of Myzus persicae: Host plant selection as a driver for aphid performance and survival

open access: yesAnnals of Applied Biology, EarlyView.
The green peach aphid, Myzus persicae, is the main virus vector in sugar beet. We examine its performance on potential winter hosts as well as the host selection and overwintering success of anholicyclic aphids in order to improve forecasting models for virus outbreaks through targeted monitoring of suitable winter hosts. Abstract Virus yellows (VY) is
Mohamed Matared   +2 more
wiley   +1 more source

Karyologische Variabilität in Kreuzungsnachkommen – eine Herausforderung bei der Züchtung neuer Baldriansorten (Valeriana officinalis L. s.l.)

open access: yesJulius-Kühn-Archiv, 2014
In der Studie wurden die unterschiedlichen Ploidiestufen von Baldrianpopulationen (Herkünfte und deren Kreuzungsnachkommen) untersucht. Mittels Chromosomenzählung konnten die Ploidiestufen der Elternherkünfte bestätigt werden.
Penzkofer, Michael   +3 more
doaj   +1 more source

Leistungen der ökologischen Landwirtschaft zur Vermeidung von Stoffeinträgen in das Grund- und Oberflächenwasser im Vergleich zu konventioneller Bewirtschaftung [PDF]

open access: yes, 2019
Stoffeinträge aus der Landwirtschaft in das Grund- und Oberflächenwasser stellen ein hohes Umweltrisiko dar. In einer systematischen Literaturübersicht wurden ökologische und konventionelle Landwirtschaft hinsichtlich der jeweiligen Belastungen des Grund-
Heß, Jürgen   +3 more
core  

Removal of Transgenes and Evaluation of Yield Penalties in Genome Edited Bacterial Blight Resistant Rice Varieties

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Bacterial blight (BB) of rice, caused by Xanthomonas oryzae pv. oryzae (Xoo), is one of the major drivers of yield losses in Africa and Asia. Xoo secretes TAL‐effectors (TALe) that induce host SWEET sucrose uniporter by binding to the effector binding element (EBE) of SWEET promoters, likely required for Xoo reproduction and virulence.
Eliza P. I. Loo   +18 more
wiley   +1 more source

Bundesforschungsanstalt für Landwirtschaft (FAL) [PDF]

open access: yes
Die FAL betreibt Forschung auf dem Gebiet der Landbauwissenschaften und verwandter Wissenschaften; sie veröffentlicht Forschungsergebnisse und pflegt die nationale und internationale Zusammenarbeit mit wissenschaftlichen Persönlichkeiten und ...

core  

In Vivo Propagation of Root Explants of the Dandelion Species Taraxacum kok‐saghyz, Taraxacum officinale and Their Interspecific Hybrids

open access: yesPlant Breeding, EarlyView.
ABSTRACT The dandelion species Taraxacum kok‐saghyz is a promising new crop for natural rubber production and is currently in the early stages of the breeding process. To support these efforts, the multiplication and conservation of defined genotypes are crucial.
René Kaiser   +4 more
wiley   +1 more source

Redistribution of soil water by mature trees towards dry surface soils and uptake by seedlings in a temperate forest

open access: yesPlant Biology, EarlyView.
Mature beech trees redistributed soil water, equal to ca. 10% of stand transpiration, from deeper moist soils to dry surface soils, where it was taken up by seedlings of different tree species. Abstract Hydraulic redistribution is considered a crucial dryland mechanism that may be important in temperate environments facing increased soil drying–wetting
B. D. Hafner   +2 more
wiley   +1 more source

Fundamentals of organic agriculture [PDF]

open access: yes, 2008
Organic agriculture can be traced back to the early 20th century, initiated by the Austrian spiritual philosopher Rudolf Steiner. It was later diversified by a number of key people, and more recent versions are guided by principles issued by the ...
Andrén, Olof   +6 more
core  

Assessing the adaptive potential of European beech populations to temperature and precipitation along a steep environmental gradient in the south‐eastern Carpathians

open access: yesPlant Biology, EarlyView.
This study focuses on the identification of candidate SNPs involved in local adaptation to altitude by environmental association analysis conducted on different natural European beech (Fagus sylvatica) populations. Abstract It is necessary to assess the adaptive potential of European beech populations to climate change.
M. Tost   +6 more
wiley   +1 more source

Beitrag des ökologischen Landbaus zum Meeresumweltschutz [PDF]

open access: yes, 2002
siehe ...
Paulsen, H-M, Schnug, E, Volkgenannt, U
core  

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