Growth, photosynthesis and UV-B absorbing compounds of Portuguese Barbela wheat exposed to ultraviolet-B radiation

agua biomasa biomass biomasse chlorophylle chlorophylls clorofilas crecimiento croissance eau efficiency eficacia growth irradiation leaf area photosynthese photosynthesis plant water relations rayonnement ultraviolet relaciones planta agua relation plante eau superficie foliar surface foliaire transpiration trigo triticum aestivum ultraviolet radiation uso del agua utilisation de l'eau water water use wheats