300 dpi: (k8050-1.jpg)
640 pixels wide: (k8050-1.jpg)
![]() Image Number K8050-1 |
Chemist Richard Mayer analyzes chlorophyll fluorescence in Valencia oranges as a measure of the tree's stress.
Photo by Keith Weller.
300 dpi: (k8050-1.jpg)
640 pixels wide: (k8050-1.jpg)
![]() Image Number K8050-1 |
Chemist Richard Mayer analyzes chlorophyll fluorescence in Valencia oranges as a measure of the tree's stress.
Photo by Keith Weller.