5 research outputs found
Efeitos dos excessos de alumĂnio, cloro e manganĂȘs em dois cultivares de soja (Glycine max (L.) Merrill)
Two soybean cultivars, Santa Rosa and FV-1, were grown in nutrient solution in the presence of high concentrations of Al (24 ppm), CI (1750 ppm) and Mn (25 ppm). Observations, measurements and chemical analyses allowed for the following conclusions to be drawn: (1) symptoms of toxicity are in agreement with those described in the literatura; (2) the detrimental effect obeyed the decreasing order - Mn Al CI; (3) dry matter production by the variety UFV - 1 was relatively more affected by the treatments; (4) leaf analyses do not provide a reliable indication of the sensitivity of the two varieties to the high levels of the three elements in the substrate; (5) Ca/Al ratio in the roots keeps a good relationship with the relative tolerance of the two cultivas to excess Al in the medium.Dois cultivares de soja, Santa Rosa e UFV-1, foram cultivados em solução nutritiva na presença de excesso de alumĂnio, cloro e manganĂȘs. AlĂ©m de provocar o aparecimento de sintomas foliares (cloro e manganĂȘs) ou radiculares (alumĂnio), os elementos em excesso causaram diminuiçÔes no crescimento e impediram a produção de vagens. A anĂĄlise mineral das folhas mostrou a influĂȘncia dos tratamentos na composição do tecido
Efeitos dos excessos de alumĂnio, cloro e manganĂȘs em dois cultivares de soja (Glycine max (L.) Merrill)
Dois cultivares de soja, Santa Rosa e UFV-1, foram cultivados em solução nutritiva na presença de excesso de alumĂnio, cloro e manganĂȘs. AlĂ©m de provocar o aparecimento de sintomas foliares (cloro e manganĂȘs) ou radiculares (alumĂnio), os elementos em excesso causaram diminuiçÔes no crescimento e impediram a produção de vagens. A anĂĄlise mineral das folhas mostrou a influĂȘncia dos tratamentos na composição do tecido.Two soybean cultivars, Santa Rosa and FV-1, were grown in nutrient solution in the presence of high concentrations of Al (24 ppm), CI (1750 ppm) and Mn (25 ppm). Observations, measurements and chemical analyses allowed for the following conclusions to be drawn: (1) symptoms of toxicity are in agreement with those described in the literatura; (2) the detrimental effect obeyed the decreasing order - Mn Al CI; (3) dry matter production by the variety UFV - 1 was relatively more affected by the treatments; (4) leaf analyses do not provide a reliable indication of the sensitivity of the two varieties to the high levels of the three elements in the substrate; (5) Ca/Al ratio in the roots keeps a good relationship with the relative tolerance of the two cultivas to excess Al in the medium