January 2016
Alternative products for overcoming dormancy in grapevines 'Isabel Precoce'
The stage of dormancy is an important physiological condition in the behavior of temperate climate fruit trees, and it is reached at the end of the vegetative cycle, when the leaves are fallen. In general, a cold period is needed to overcome the state of dormancy and promote uniform buds sprouting, being therefore a limiting factor for grape production in Brazil. There are chemicals used in breaking dormancy of the...
January 2016
Symbiotic nitrogen fixation and nitrogen budget of Brazilian soybean [Glycine max (L.) Merril] varieties introduced in Benin using 15N isotopic dilution method
Nitrogen-15 isotopic dilution method was used to estimate biological nitrogen fixation (BNF) and nitrogen (N) budget of fourteen (14) soybean varieties using maize as reference crop. The experiment was carried out at Sekou in Southern Benin. The amount of N derived from air (Ndfa kg N ha-1) ranged from 51 for variety BRS 261 to 148 for variety Canarana. In a scenario where the soybean shoot dry matter and grains were...
January 2016
Variation of static pressure in a crambe (Crambe abyssinica Hochst) grains column
The crambe has emerged as an option for the production of biodiesel, constituting itself as an alternative for off-season grain in Brazil. To obtain the best performance in the post-harvest product processing, knowledge of physical characteristics of the grains to as well as of the design of machines and structure storage is necessary. After pre-cleaning, the crambe (Crambe abyssinica Hochst) with a water content of 8%...
January 2016
Strategies for selecting soybean genotypes using mixed models and multivariate approach
The objective of this study was to select soybean genotypes derived from crosses between conventional and transgenic lines Roundup Ready (RR), using jointly Restricted Maximum Likelihood/Best Linear Unbiased Prediction (REML/BLUP) approaches, factors analysis and principal components analysis, processed with favorable agronomic traits, during the 2013/2014 growing season. Three agronomic selection processes were...
January 2016
Cultivation of colored cotton irrigated with saline water under potassium and nitrate/ammonium fertilization
This study aimed to evaluate growth and production components of the colored cotton cultivar ‘BRS Topázio’ irrigated with saline water as a function of dose of potassium and proportions of nitrate and ammonium. The study was conducted in drainage lysimeters under greenhouse conditions, in a eutrophic Gray Argisol of sandy clay loam texture, in the municipality of Campina Grande, Brazil, from November...
January 2016
Effect of two dipping pretreatment on drying kinetics of golden berry (Physalis peruviana L.)
Golden berry (Physalis peruviana L.) has scientifically proven medicinal properties. This research was aimed to investigate the effect of alkaline ethyl oleate and sucrose solution pretreatments as well as drying temperature on the drying kinetics of golden berry. Based on this, golden berries were dipped in alkaline ethyl oleate solution (2% ethyl oleate + 4% potassium carbonate) at 25°C or in osmotic solution (40%...
January 2016
Influence of the land use on the water quality in the São João and Iguaçu Rivers, state of Paraná, Brazil: assessment of the importance of the riparian zone
Further objectives were to determine the different patterns of land use and occupation within the microbasin formed by these rivers, and to assess the influence of the quantity of riparian vegetation on the presser/vation of the aquatic ecosystems. The studied basin extends over a total area of 77.75 km2, of which 92.98% comprised agriculture (44.11%) and native forest (48.87%). The drainage area of the sampling site P1...
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