Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Donald E. Aylor"'
Publikováno v:
Agricultural and Forest Meteorology. 151:251-260
A means for determining the aerial concentration, C (sporangia m −3 ), of plant pathogenic spores at various distances from a source of inoculum is needed to quantify the potential spread of a plant disease. Values of C for Phytophthora infestans s
Publikováno v:
Journal of Applied Meteorology and Climatology. 47:291-307
The widespread adoption of genetically modified (GM) crops has led to a need to better understand the atmospheric transport of pollen because of concerns over potential cross-pollination between GM and non-GM crops. Maize pollen concentrations were m
Publikováno v:
Journal of Applied Meteorology and Climatology. 45:1003-1015
The extensive adoption of genetically modified crops has led to a need to understand better the dispersal of pollen in the atmosphere because of the potential for unwanted movement of genetic traits via pollen flow in the environment. The aerial disp
Autor:
Donald E. Aylor, Matthew T. Boehm
Publikováno v:
Atmospheric Environment. 39:4841-4850
Lagrangian stochastic (LS) models of dispersion in the convective boundary layer (CBL) are modified here to include the effects of particle fall velocity. This is accomplished by subtracting the fall velocity in the calculation of the vertical displa
Autor:
Donald E. Aylor
Publikováno v:
Agricultural and Forest Meteorology. 131:247-256
An accurate assessment of the amount of pollen released in a cornfield that reaches the female flowers (silks) is important for determining both the amount and purity of seeds produced. A method for making this assessment is presented. In this method
Publikováno v:
Journal of Experimental Botany. 56:2401-2407
In parts of the world where teosinte and maize are grown in close proximity, there is concern about gene flow between them. Pollen is the primary vehicle for gene flow. Quantifying the biophysical properties of pollen, such as its settling speed and
Autor:
Donald E. Aylor
Publikováno v:
Agricultural and Forest Meteorology. 123:125-133
The ability of maize pollen to remain viable during exposure in the atmosphere can potentially have an overriding effect on outcrossing distances in maize. The survival of maize pollen was determined for various lengths of exposure to atmospheric con
Publikováno v:
Agricultural and Forest Meteorology. 119:111-129
Maize (Zea mays L.) is one of the world’s most important crops. Until recent times, improvement in maize resulted from the manipulation and exchange of genetic information within the genus Zea. With the advent of genetic engineering, genetic inform
Autor:
Donald E. Aylor
Publikováno v:
Journal of Experimental Botany. 54:2307-2312
The water content of corn (Zea mays L.) pollen directly affects its dispersal in the atmosphere through its effect on settling speed and viability. Therefore, the rate of water loss from pollen after being shed from the anther is an important compone
Autor:
Donald E. Aylor
Publikováno v:
Ecology. 84:1989-1997
Successful transmission of plant diseases over long distances through the atmosphere depends on the reproductive rate of the pathogens, on the carrying capacity of the source locality, on atmospheric turbulence, stability, and wind speed, and on the