Study first author Michelle Zavala-Paez, doctoral candidate at Penn State (IMAGE)

Penn State

Study first author Michelle Zavala-Paez, doctoral candidate at Penn State

Caption

Study first author Michelle Zavala-Paez, doctoral candidate in Penn State’s Intercollege Graduate Degree Program in Ecology, selects the main shoot of a hybrid Populus tree to collect the first fully expanded leaf for physiological measurements. 

Credit

Penn State

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