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Evaluation of the maize ( Zea mays L.) diversity on the Archipelago of Madeira
Carvalho, Miguel Pinheiro de; Ganança, José; Abreu, Ivo; Sousa, Nélia; Santos, Teresa dos; Vieira, Maria Clemente; Motto, MarioAbstract The variability of 43 open-pollinated populations of maize (Zea mays L.), representing a wide range of ecological conditions on the Archipelago of Madeira, was evaluated based on the morphological and reproductive traits. Individual data of 41 traits related to earliness, plant and tassel structure and the shape of the ear and grain were analysed using multivariate analysis. The populations belonging ...
Factors contributing to the development of aluminum resistance in the Madeiran ...
Carvalho, Miguel Â. A. Pinheiro de; Slaski, Jan J.; Abreu, Ivo; Ganança, Filipe T.; Santos, Teresa M. M. dos; Freitas, Lurdes; Vieira, Maria R. ClementeForty genotypes representing maize genetic diversity from the Island of Madeira were screened for resistance to aluminum (Al) in nutrient solution. Seeds of maize were obtained from local farmers from field plots spread around the island in a range of altitudes from 99 to 1000 m above sea level. The content of ionic aluminum and the pH of soils cultivated with maize were determined. The mean pH value of all exa...
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