.
Abstract
The effect of magnesium levels in nutrient solution upon growth of common bean (Phaseolus vulgaris L. cv Carioca) was studied. Bean plants were grown in pots containing Hoagland and Arnon n.2 solution modified to obtain 2.4, 24.3, 48.8, 72.9 and 97.2 ppm of magnesium. The experimental design was a split-plot factorial replicated 3 times with 5 levels of magnesium and 5 samplings which were done forthnightly, with leaf area rate (LAR), specific leaf area (SLA), specific leaf weight (SLW), net assimilation rate (NAR) and relative growth rate (RGR) determinations. Therefore, it may be suggested that the 48.6 ppm of magnesium level is the best choice for the common bean, according to the conditions of this experiment. Magnesium concentrations over 48.6 ppm did not show significant alterations of the evaluated parameters. Nutrient solution with 2.4 ppm of magnesium provides a good condition to the common bean plants during almost all its cycle, except the final of the reproductive phase.Downloads
Published
Issue
Section
License
Copyright (c) 1996 Carmen Sílvia Fernandes Boaro, João Domingos Rodrigues, Selma Dzimidas Rodrigues, Maria Elena Aparecida Delachiave, Elizabeth Orika Ono, José Figueiredo Pedras
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
After the electronic publication of the manuscript, the authors are entitled, without any restriction, on its contents.
License Creative Commons Atribuição 4.0 Internacional - CC BY
Authors are able to take on additional contracts separately, non-exclusive distribution of the version of the paper published in this journal (ex.: publish in institutional repository or as a book), with an acknowledgment of its initial publication in this journal.