October 2016
Yield and growth characteristics of Cowpea (Vigna unguiculata) as affected by prior heat stress and nutrient addition
In the tropics, high temperatures and nutrient inaccessibility are often the most limiting factors affecting plant growth and final crop yield. However, it remain incomprehensible the actual impact of simultaneous interaction of prior heat stress and nutrient addition on growth and yield of cowpea plant, knowing that cowpea plant is an important grain legumes for over 200 million people in dry savanna of tropical...
October 2016
Chemical composition and antioxidant capacity in edible biomass of tagasaste (Chamaecytisus proliferus var. palmensis)
Tagasaste (Chamaecytisus proliferus (L. fit.) Link var. palmensis (Christ) Hansen and Sunding is a perennial fodder shrub naturalized in a range of environments for its valuable forage traits. This research was aimed at evaluating the seasonal variation in chemical composition, bioactive compounds and antioxidant properties in edible biomass components (leaves, twigs, flowers, and pods) of tagasaste grown in a...
October 2016
Trichoderma-bean interaction: Defense enzymes activity and endophytism
Biotic inducing agents such as Trichoderma spp. are an alternative for the induction of resistance by activating defense mechanisms of plants. This work aimed to study the interaction between bean and Trichoderma spp. evaluating the effects of the induction of resistance in bean through the defense enzymes activity and ability to endofitism. The experimental was design in randomized blocks, with four replications, being...
October 2016
Development of an automated system of aeration for grain storage
Stored grain should be preserved as much as possible during storage process, because of the occurrence of chemical, biochemical, physical and microbiological changes. The grain storage process consists of storing this material for a later use after a certain period. This study aims at to develop a prototype for grain aeration; to develop a software to control aeration strategies; and to evaluate the development of...
October 2016
Effect of Allium sativum (garlic) extract on the growth and nodulation of cowpea (Vigna unguiculata) and groundnut (Arachis hypogea)
It has been demonstrated that symbiotic N2 fixation enhances soil fertility and productivity as well as increases carbon sequestration and nutrient conservation. Green house experiments were conducted to ascertain the effect of garlic extract on the nodulation of cowpea and groundnut plants. Different concentrations of the extract (20, 40, 60 and 80%), were applied to the plant at 2 weeks after planting. Both legumes...
October 2016
Agronomic performance of local and introduced plantains, dessert, cooking and beer bananas (Musa spp.) across different altitude and soil conditions in eastern Democratic Republic of Congo
Agronomic performances of local and exotic Musa species were evaluated across seven agro-ecologies in Eastern Democratic Republic of Congo. Generally, all the cultivars performed well. Mean bunch yields varied between 11 and 42 kg across different use groups and agro-ecologies. Introduced cultivars had higher or comparable yields to the local cultivars across agro-ecologies. The exotic beer cultivar ‘NARI...
October 2016
Germination capacity of some halophytic plants species under increasing salinity
In Tunisia, more particularly in semiarid and arid areas, the drought accentuated by the surface evaporation of water lead to gradual increase in salinity of the soil which a major hurdal in development of vegetation. In these highly salted ecosystems, some plants are growing naturally; however, various species show different tolerance levels to salinity during their development. Seed germination is the stage which is...
October 2016
Seeding density of Brachiaria ruziziensis intercropped with grain sorghum and effects on soybean in succession
Sorghum is an alternative crop to produce grains in the off-season in Brazilian Cerrado and the intercropping with Brachiaria species enable to produce dry matter on the soil surface for a longer time. However, there is limited information on Brachiaria ruziziensis seed density to be applied to intercropping with sorghum without causing decreases in sorghum grain yield. The objective of the study was to evaluate the...
October 2016
Selection of S0:2 maize progenies using a mixed-model approach
In breeding programs, obtaining breeding lines was important, and first selfing selection generations is common. In addition, an analytic approach through mixed models can lead to more success in genotype selection because it lends flexibility in analysis of unbalanced data and provides more precise genotypic values in regard to progenies evaluated. The goal of this study was to make early selection (in the S2...
October 2016
Seeding rate and physiological quality of dual purpose wheat seeds
Wheat dual purpose (Triticum aestivum L.) has elevated biomass production, high tillering potential, long vegetative stage, short reproductive period. Therefore, this study aim to reveal the seeding rates effect on physiological attributes of wheat dual purpose seeds grown in three agricultural crops, and identify a population management strategy and check the response stability of the traits in southern Brazil. The...
October 2016
Agronomic performance, production components and agricultural productivity of maize (Zea mays L.) cultivars
The rain fed crop is highly dependent on environmental conditions, and study aims to evaluate the agronomic performance, yield components and agricultural productivity of six maize cultivars in the region of the coastal tablelands of Alagoas State, Brazil. The experimental design was randomized complete block, with five replications and six treatments. Six maize cultivars, three varieties (Jaboatão, Batité...
October 2016
Development and production of chia (Salvia hispanica L.) in different space arrangements
The development of management methods appropriate for the culture of chia (Salvia hispanica L.) is essential to improve productivity. This research aimed to evaluate and quantify the development and productivity of chia plants in different row spacing and planting density in Western region of Paraná. As the treatments used were four row spacing (0.15, 0.30, 0.45 and 0.60 m) in three plant densities (200,000,...
October 2016
Evaluation of solvent retention capacity of wheat (Triticum aestivum L.) flour depending on genotype and different timing of nitrogenous fertilizer application
Wheat is one of the most important cereal crops in the world. The objectives of this study were: (i) to evaluate the solvent retention capacity of wheat flour from three genotypes when nitrogenous fertilizer is applied at different stages of crop growth; and (ii) to evaluate the possible existence of correlations between different solvents when nitrogenous fertilizer is applied at different stages of crop growth. The...
October 2016
Effect of hydro-priming duration on germination and early seedling growth of rapeseed under salinity stress
A laboratory experiment was carried out to assess the possibility of decreasing the negative effects of salinity on seed germination and early seedling growth of canola by hydro-priming of seeds. A 7×5 factorial experiment based on completely randomized design was employed to compare the treatments. Seed priming comprised 0.0, 4.0, 8.0, 12.0, 16.0, 18.0 and 24.0 h seeds soaking in distilled water, and salinity...
October 2016
Efficient control of conidium germination, mycelial growth and early blight in tomato in vitro with essential oils under farm conditions
The aim of this work was to find a natural product and efficient dose to control early blight in tomato crop in agro-ecological or conventional agriculture system. The treatments were essential oils from Cymbopogon citratus, Eucalyptus citriodora, Piper hispidinervum, Cymbopogon martini, Rosmarinus officinalis, Syzygium aromaticum, Cinnamomum zeylanicum, Mentha piperita, Citrus sinensis var. dulcis, and Melaleuca...
October 2016
Comparison of mapping soybean areas in Brazil through perceptron neural networks and vegetation indices
This study aimed to develop and evaluate the Artificial Neural Networks (ANNs) settings to differentiate and estimate areas of soybean by employing the vegetation index with and without time series. Study area comprises the state of Paraná, South Brazil. The images used to process the ANN were Normalized Difference Vegetation Index (NDVI), Perpendicular Vegetation Index (PVI) and Enhanced Vegetation Index (EVI)...
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