Chlorophyll fluorescence quenching during photosynthetic induction in leaves of Abutilon striatum Dicks. infected with Abutilon mosaic virus, observed with a field-portable imaging system. - Osmond, ,C..B.,.; Daley, ,P..F.,.; Badger, ,M..R.,.; and Lüttge, ,U.. (Bot. Acta, 1998)