PALAVRAS-CHAVE:Água disponível, Ricinus communis L., biodiesel.
CASTOS BEAN PRODUCTIVITY AND CONTENT OF ITS OIL AS AFFECTED BY THE AVAILABLE SOIL WATER AND ORGANIC MATTER CONTENTABSTRACT: The objective of the research was to study the sensibility of the castor bean cultivar BRS 188 to different levels of available soil water for plants and soil organic matter evaluating the effects on the productivity and the quality of the final product, the oil. The experiment was conducted under field conditions. The experimental design used was a 2 x 4
PALAVRAS-CHAVE: Homogêneas, análise robusta, abacate comercial
STATISTICAL METHODS FOR ROBUST ANALYSIS OF DATA ORIGINATED FROM AGRICULTURAL EXPERIMENT IN IRRIGATED AREASABSTRACT: Usually, the conclusions originated from field or green house experiments are obtained from Variance Analysis (ANOVA). However, the use of this technique demands two fundamental presuppositions: that the errors must be normally distributed and that the variance of the treatments must be homogeneous. However, most of the time, these exigencies are neglected due to lack of theoretical knowledge, fact that may lead the researcher to equivocated conclusions. Thus, it was made an analysis of an experimental data in entirely random blocks with four soil water treatments (25, 50, 75 e 100% of ETo) and four repetitions summing up 96 1 Doutor, professor UFCG/CES/UAE.
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