Limitations to photosynthesis in coffee leaves from different canopy positions.

@article{Arajo2008LimitationsTP,
  title={Limitations to photosynthesis in coffee leaves from different canopy positions.},
  author={Wagner L Ara{\'u}jo and Paulo Celio Di Cellio Dias and Gustavo A. B. K. Moraes and Elaine Facco Celin and Roberto Lisboa Cunha and Raimundo Santos Barros and F{\'a}bio Murilo Damatta},
  journal={Plant physiology and biochemistry : PPB},
  year={2008},
  volume={46 10},
  pages={884-90}
}
Limitations to photosynthesis were explored in leaves from four canopy positions of field-grown, unshaded coffee (Coffea arabica L.), a tropical tree species classified as shade-obligatory. Overall, compared to shade (lower) leaves, sun (upper) leaves had higher net carbon assimilation rate (A) (4.5 against 2.0 micromol m(-2)s(-1) at most) associated with higher electron transport rate (due to a greater irradiance availability) but unrelated to stomatal and mesophyll conductances, which were… CONTINUE READING