PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY
Editorial use only.
Citrus crop growth research. Biologist and plant physiologist recording the number and location of sprouting buds on citrus trees exposed to different environmental conditions in a growth chamber. This research is being carried out by the Agricultural Research Service (ARS) of the US Department of Agriculture. Photographed in the USA.
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