Souza, J. G. de and Silva, J. B. vieira da (1994) “Relationships of phenology, photosynthesis and respiration in cotton plants selected for high and low starch content in roots”, Pesquisa Agropecuaria Brasileira, 29(5), pp. 743–750. doi: 10.1590/S1678-3921.pab1994.v29.4110.