Effect of Copper, Zinc, Cadmium and Chromium in the Growth of Crambe

• 作者: Ana Carolina Feitosa de Vasconcelos Danilo Rodrigues Monteiro Gilvanise Alves Tito Josely Dantas Fernandes Lúcia Helena Garófalo Chaves
• 来源期刊: 农业科学(英文)
• 学科: 医学
• 关键词: HEAVY METALS BIODIESEL Oleaginous
• 年，卷（期）: 2014,（11）
• 页码范围: 975-983
• 页数: 9页
• 分类号: R73

摘要

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.