Results 11 to 20 of about 2,362,291 (310)

The Land of the Future: British Accounts of the USA at the Turn of the Nineteenth Century

open access: yesEuropean Journal of American Studies, 2016
This article examines the ways in which British travelers to the USA at the end of the nineteenth and beginning of the twentieth centuries articulated their different perceptions of a nation which was emerging as a major imperial competitor ...
David Seed
doaj   +1 more source

The effect of flow and orography on the spatial distribution of the very short-term predictability of rainfall from composite radar images [PDF]

open access: yesHydrology and Earth System Sciences, 2014
The spatial distribution and scale dependence of the very short-term predictability of precipitation by Lagrangian persistence of composite radar images is studied under different flow regimes in connection with the presence of orographic features.
L. Foresti, A. Seed
doaj   +1 more source

Sticky Exudates on the Inflorescences of \u3ci\u3eCirsium Discolor\u3c/i\u3e (Asteraceae) and \u3ci\u3ePenstemon Digitalis\u3c/i\u3e (Scrophulariaceae) as Possible Defense Against Seed Predators [PDF]

open access: yes, 2018
From 1982 through 1987, I investigated whether sticky exudates released by Cirsium discolor and Penstemon digitalis in their inflorescences provide defense against seed predators. I tested two hypotheses: 1: Exudates directly deter seed predators, and 2:
Thomas, Patricia A
core   +2 more sources

Seed Health Testing: Doing Things Right

open access: yesPhytoFrontiers, 2023
Since seeds can be a route for pathogen introduction, they are routinely inspected and tested to prevent pest outbreaks and introduction into new territories. The need for high throughput, short lead times, and cost reduction has played an important role
Gerrit A. Hiddink   +3 more
doaj   +1 more source

optimal conditions determination for standard germination test of Asafoetida (Ferula assa-foetida) seeds [PDF]

open access: yesعلوم و فناوری بذر ایران, 2023
Ferula assa-foetida is one of the important medicinal plants of Apiaceae that has been exposed to extinction with repeated withdrawals from its natural habitat. Study of seed germination behavior of this species can lead to the development of cultivation
Mohsen Malek   +4 more
doaj   +1 more source

Development of a Multiplex RT-PCR for the Simultaneous Detection of Five Viruses and Viroids in Peach [PDF]

open access: yesResearch in Plant Disease
A multiplex reverse transcription-polymerase chain reaction (mRT-PCR) assay was developed for the simultaneous detection of three viruses and two viroids infecting peach trees, including apple chlorotic leaf spot virus, plum bark necrosis stem pitting ...
Jeong-Eun Kim   +5 more
doaj   +1 more source

Virus infection assessment based on changes in spectral reflectance pattern on daughter seed potato plants [PDF]

open access: yesعلوم و فناوری بذر ایران, 2021
Fast and precise detection of infected potato plants is an essential practice in the seed potato certification system. Spectral fingerprinting as non-destructive and rapid method is going to be developed for discriminating plants with different stress ...
K. Moslemkhani   +4 more
doaj   +1 more source

The organic seed regulations framework in Europe – current status and recommendations for future development [PDF]

open access: yes, 2012
Organic agriculture regulations, in particular European regulation EC 889/2008, prescribe the use of organically produced seed. For many cultivated plants, however, organic seed is often not available.
AM Osman   +21 more
core   +2 more sources

Influence of multiplicative stochastic variation on translational elongation rates. [PDF]

open access: yesPLoS ONE, 2018
Experimental data indicate that stochastic effects exerted at the level of translation contribute substantially to the variation in abundance of proteins expressed at moderate to high levels.
Sandip Datta, Brian Seed
doaj   +1 more source

Analysis of Seed Potato Systems in Ethiopia [PDF]

open access: yes, 2010
This study aimed to analyze the seed potato systems in Ethiopia, identify constraints and prioritize improvement options, combining desk research, rapid appraisal and formal surveys, expert elicitation, field observations and local knowledge. In Ethiopia,
Hirpa, A.   +6 more
core   +1 more source

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