Genetic variation and correlation of agronomic traits in meadow bromegrass (Bromus riparius Rehm) clones.

Meadow bromegrass (Bromus riparius Rehm.) is a recently introduced pasture grass in western Canada. Its leafy production and rapid regrowth have made it a major grass species for pasturing beef animals in this region. As relatively little breeding work kas been done on this species, there is little information on its breeding behaviour. The main objective of this study was to estimate total genetic variability, broad-sense heritability, phenotypic and genetic correlations. Forty-four meadow bromegrass clones were evaluated for agronomic characters. Genetic variation for dry matter yield, seed yield, fertility index, harvest index, plant height, plant spread, crude protein, neutral de ter gent fiber and acid de ter gent fiber, was significant. Broad-sense heritability estimates exceeded 50% for all characters. Heritability estimates were at least 3.5 times greater than their standard errors. Phenotypic and genetic correlation between all possible characters were measured There was general agreement in both sign and magnitude between genetic and phenotypic correlations. Correlations between the different characters demonstrated that it is possible to simultaneously improve seed and forage yield. Based on the results, it appears that the development of higher yielding cultivars with higher crude protein, and lower acid and neutral detergent fibers concentration should be possible

Influência de hidrocolóides na firmeza de estruturado de polpa de maracujá do mato.

O objetivo deste trabalho foi avaliar o uso de misturas de hidrocolóides na firmeza de fruta estruturada de maracujá do mato, através de um planejamento experimental fatorial completo. O modelo matemático obtido para a firmeza apresentou regressão significativa e R2 superior a 0,85, podendo ser utilizado para predição dessa resposta. As frutas estruturadas formuladas com os menores níveis de pectina e com os maiores níveis de alginato e de gelatina apresentaram firmeza elevada

Aceitação de manga Tommy Atkins seca com e sem pré-tratamento osmótico.

Mangas secas com e sem pré-tratamento osmótico foram submetidas a testes de aceitação, onde foram avaliados os atributos aparência, aroma, sabor e textura. As amostras apresentaram diferença significativa em relação à aparência e ao sabor, e a manga seca previamente imersa em solução de sacarose foi a mais aceita pelo consumidor, obtendo médias de aceitação para os atributos aparência, aroma, sabor e textura nas categorias gostei ligeiramente e gostei moderadamente da escala hedônica

Mineral content, phenolic compounds and bioactive amines of cheese bread enriched with cowpea.

Cheese bread presents great acceptance and market expansion. Due to the lack of standardization in its manufacturing, various ingredients can be added. It was aimed to determine the content of minerals, bioactive compounds and antioxidant activity in cheese bread enriched with biofortified cowpea. Two formulations were prepared, standard cheese bread (without cowpea) and enriched cheese bread. The minerals were analyzed using the plasma emission spectrometry technique with inductive coupling, phenolic compounds and antioxidant activity were determined by spectrophotometry and the amines by High Performance Liquid Chromatography. All analyzes were performed in triplicate and for the comparison of the means between two variables, Student?s t-test was applied and for multiple comparisons, the Tukey test. It was observed that the enriched cheese bread is source of copper, zinc and sodium and presents high content of calcium, phosphorus and magnesium, considering the recommendations for the children?s audience. The concentrations of total phenolics, flavonoids and condensed tannins increased significantly with the introduction of cowpea. It was also observed an significant increase of spermidine, cadaverine and agmatine. The antioxidant activity was statistically higher in enriched cheese bread. It is concluded, therefore, that cheese bread with cowpea contributes to the supply of minerals and bioactive compounds

Evaluation of the late seed-coat darkening of Carioca type dry beans.

The present study was performed for the purpose of estimating genetic and phenotypic parameters of late seed-coat darkening trait of grains, with a view toward directing breeders in regard to selection of individuals and/or progenies with the desired phenotype

MANEJO de caprinos leiteiros na agricultura familiar.

Manejo das crias; Manejo das matrizes; Manejo sanitário; Escolha das raças. Equipe Técnica: Adriana Mello de Araújo, Tânia Maria Leal, Raimundo Bezerra de Araújo Neto, Robério dos Santos Sobreira, Francisco das Chagas Monteiro.bitstream/item/104135/1/Manejo-de-caprinos0001.pd

Efeito do processamento térmico na composição química, compostos bioativos e atividade antioxidante de cultivares de feijão-caupi.

This study aimed to determine the effect of cooking on the centesimal compositions, the content of bioactive compounds, and antioxidant activities in beans of the cowpea cultivars. The beans were cooked without soaking (1:5 w/v) in a pressure cooker for 780 seconds..