TITLE:
Effect of Copper, Zinc, Cadmium and Chromium in the Growth of Crambe
AUTHORS:
Gilvanise Alves Tito, Lúcia Helena Garófalo Chaves, Josely Dantas Fernandes, Danilo Rodrigues Monteiro, Ana Carolina Feitosa de Vasconcelos
KEYWORDS:
Heavy Metals, Biodiesel, Oleaginous
JOURNAL NAME:
Agricultural Sciences,
Vol.5 No.11,
September
23,
2014
ABSTRACT: Crambe is a
promising crop for biodiesel production. However, there is no much information
available about techniques and research regarding the best performance in
different regions to explore its potential. The objective of this study was to
evaluate the effect of cadmium, chromium, copper and zinc in the development of
crambe. The study was carried out in a greenhouse and it consisted of four
independent experiments in completely randomized design, with three
replications. Four metals with five levels were applied: 0, 10, 15, 20 and 25
mg·kg-1 for copper, cadmium, chromium; and 0, 20, 30, 40 and 50
mg·kg-1 for zinc, in order to evaluate the growth of crambe. Data
were subjected to analysis of variance and comparison of means by Tukey test at
1 and 5% significance. Despite doses of cadmium, chromium, copper and zinc in
growing crambe have influenced in some of the evaluated variables of the
plants, in general, their development was similar in relation to doses and the
metals applied. The importance of cultivating crambe is related to grain production,
based on this, copper and cadmium decreased this production.