Poplar physiology and short-term biomass production
This programme comprises the establishment, on both biochemical and physiological bases, of specific screening tests for the rapid evaluation of adaptation of the poplar to environmental conditions. The resistance of the photochemical apparatus of chloroplasts to several major environmental stresses directly affecting the biomass production (light, heat, cold and water stress) has been assessed in leaves of five poplar clones by in vivo chlorophyll fluorescence and oxygen production measurements. These two chloroplastic activities are correlated to the photosynthetic activity of the plant and respond immediately to any changes affecting the organisation and the functioning of the photosynthetic apparatus, and changes due to the start-up of the regulation mechanisms. The results indicate considerable genetic variation in tolerance of poplar toward environmental stresses. The application of the in vivo fluorescence method and of the photoacoustic method appears to be an easy and rapid way to estimate the reaction of poplar clones against some stresses and thus for detecting plant species adapted to environmental stresses.
Bibliographic Reference: EUR 12930 EN (1990) 53 pp., MF, ECU 4, blow-up copy ECU 7.50
Record Number: 199011571 / Last updated on: 1994-12-02
Original language: en
Available languages: en