The use of renewable residues as a source of nutrients, associated with chemical input, can provide better efficiency, greater amount of nutrients available to the plant and reduce its application. The objective of this study was to evaluate the influence of different organic residues associated with chemical fertilizer (NPK) on sugarcane rooting and yield. The experiment was conducted in a Typic Quartzipsamments soil, located in Campo Grande-MS, Brazil, from October 2010 to September 2013. The plots were 4 x 5 m (20 m2), set in a randomized block design with four replicates. The treatments consisted of poultry litter (10 t ha-1), filter cake (10 t ha-1), vermicompost (10 t ha-1) and vinasse (300 m3 ha-1), all associated with basic NPK fertilizer, and control (only basic fertilization). All sources were applied in the furrows before planting, with the exception of vinasse, which was applied through fertigation. The results showed that treatment with filter cake obtained the highest amount of roots with yield gain in the 1st and 2nd harvests.

Advancing functional ecology depends fundamentally on the availability of data on reproductive traits, including those from tropical plants, which have been historically underrepresented in global trait databases. Although some valuable databases have been created recently, they are mainly restricted to temperate areas and vegetative traits such as leaf and wood traits. Here, we present Rock n' Seeds, a database of seed functional traits and germination experiments from Brazilian rock outcrop vegetation, recognized as outstanding For affiliation refer to page 2

La especie Basella alba se conoce popularmente como bertalha india y se consume ampliamente en forma de ensaladas, por ejemplo. El objetivo de este estudio fue evaluar las etapas iniciales de crecimiento y la producción de metabolitos secundarios en diferentes sustratos. Transcurridos 90 días desde el inicio de la plantación (pleno sol), en suelo arenoso mezclado con diferentes sustratos, se determinó el efecto de los sustratos sobre el crecimiento y producción de metabolitos secundarios en las hojas. Los resultados indicaron que el tratamiento con la adición de 70% de vermicompost indujo el mayor crecimiento y la mejor concentración de compuestos fenólicos y flavonoides. Sin embargo, la mayoría de los tratamientos dieron como resultado la producción de heterósidos cardiotónicos, que pueden causar problemas de salud. The species Basella alba is popularly known as Indian bertalha and is widely consumed in the form of salads, for example. Due to its potential for use, the objective of this study was to evaluate the initial stages of growth and the production of secondary metabolites in different substrates. After 90 days from the beginning of planting (full sun), in sandy soil mixed with different substrates, the effect of substrates on growth and the production of secondary metabolites in leaves was determined. The results indicated that the treatment with the addition of 70% of vermicompost induced the highest growth and the best concentration of phenolic and flavonoid compounds. However, most of the treatments resulted in the production of cardiotonic heterosides, which can cause health problems.

A análise de extratos de folhas de Moringa oleifera cultivadas em diferentes substratos oferece a oportunidade de se examinar um conjunto de compostos únicos, que podem ser utilizados para diversos fins, em nutrientes e na medicina. Levando-se esses fatores em consideração, foi montado um experimento em delineamento experimental, conduzido com blocos inteiramente casualizados, com sete tratamentos: (1) 100% neossolo quartzarênico; (2) neossolo quartzarênico 60% x 40% vermicomposto; (3) neossolo quartzarênico 80% x 20% vermicomposto; (4) neossolo quartzarênico 60% x 40% casca de arroz carbonizada; (5) neossolo quartzarênico 80% x 20% casca de arroz carbonizada; (6) neossolo quartzarênico 60% x 40% solo argiloso; e, (7) neossolo quartzarênico 40% x 60% solo argiloso, a pleno sol, quatro repetições por tratamento. A avaliação de crescimento da parte aérea foi realizada aos 105 dias, com a coleta das folhas, secas em estufa de ventilação forçada e posteriormente trituradas e pesadas. Com o material obtido foram preparados extratos metanólicos (20%) e aquosos (20%), submetidos à análise fitoquímica. Foi detectada a presença de compostos fenólicos, taninos, flavonoides, cumarinas, esteroides, heterosídeos cardioativos, alcaloides e açúcares redutores. Estes compostos são provavelmente os responsáveis em conferir amplo espectro de atividades biológicas atribuídas às folhas da espécie. Porém, o presente estudo sugere cautela em seu uso indiscriminado, devido à grande presença de heterosídeos cardioativos. A maior ou menor quantidade de metabólitos foi influenciada pelos diferentes substratos e, na dependência do tipo de utilização da espécie diferentes tipos de cultivos seriam necessários para aumentar ou diminuir determinados compostos presentes em suas folhas.

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