Abstract
The crambe crop is an interesting option for the production of biodiesel, mainly due to the high oil content (35%) and the corn one of the most implanted crops in Brazil. Thus, the objective of this work was to evaluate the allelopathic effect of crambe in the initial development of maize. The experiment was carried out in the laboratory of seed and plant evaluation (LASP) and laboratory of soil physics (LAFIS) of UNIOESTE-Cascavel. The seeds of corn with germination of 93.5% were submitted to four concentrations plus the control in the different parts of the crambe plant, where the growth and mass of corn were valued. The experimental design was completely randomized with 4 replicates per treatment. The statistical analysis consisted of analysis of variance and the means of the treatments were compared by the Tukey test at 5% of significance. The extract of the whole crambe plant stimulated aerial length, root length, fresh and dry mass of corn shoot. Root, stem and leaf extracts inhibited the initial development of maize in relation to growth and fresh and dry shoot mass.
Highlights
Crambe (Crambe abyssinica) belongs to the brassicaceae family and originates in the Mediterranean region
With the advent of biodiesel, crambe emerges as an alternative for complementing vegetable oil production, with many challenges still ahead, given that it is a poorly researched crop in Brazil and represents a new field of study for researchers and students (Kunz et al, 2012; Wang et al, 2000). Studies, such as those of Broch and Ranno (2011), show that with the use of the crambe crop prior to corn, there is an increase in sack yield per hectare compared to other types of cover
The crambe plants were collected at flowering time in the experimental area of the Paraná Agronomic Institute (IAPAR), located in Santa Tereza do Oeste, PR, Brazil
Summary
Crambe (Crambe abyssinica) belongs to the brassicaceae family and originates in the Mediterranean region. With the advent of biodiesel, crambe emerges as an alternative for complementing vegetable oil production, with many challenges still ahead, given that it is a poorly researched crop in Brazil and represents a new field of study for researchers and students (Kunz et al, 2012; Wang et al, 2000). Studies, such as those of Broch and Ranno (2011), show that with the use of the crambe crop prior to corn, there is an increase in sack yield per hectare compared to other types of cover
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