Fig. 3
From: Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory
Average reflectance profiles a acquired from maize plants prior to insect herbivory (baseline) and divided into three groups: single plant per cage (alone), two plants in different pots but in the same cage (air), and two maize plants planted in the same pot (air and root). Average reflectance profiles b from T2, T3B, and T4B maize plants after 3–48 h of insect herbivory were divided with average reflectance profiles acquired from control plants (T1). See Fig. 1 for treatment descriptions. Significant F-values at the 0.05-level from statistical comparisons are denoted as dots