1,039 research outputs found
Tópico de submissão do trabalho: 15 melhoramento genético avaliação preliminar do potencial germinativo de linhagens e híbridos de mamoeiro (Carica Papaya L.) em telado.
A espécie Carica papaya L. é, dentre todas as espécies de mamoeiro, a mais cultivada no mundo, apresentando como provável centro de origem o Noroeste da América do Sul, a vertente oriental dos Andes, ou, mais precisamente, a Bacia Amazônica Superior com máxima diversidade genética (Sanches & Dantas, 1999). O Brasil é a nação que apresenta a maior produção de mamão, 1.440.000 t, cultivado em todos os estados da federação. A região Nordeste concentra a maior área de plantio, cerca de 30 mil hectares (Nakamae, 2003). Em Pernambuco a produção é pouco expressiva, correspondendo a 10.097 t obtidas em 578 hectares, equivalente ao rendimento médio anual de 17,74 t / ha (Agrianual, 2006).pdf 147
Avaliação preliminar do potencial germinativo de linhagens e híbridos de mamoeiro (Carica papaya L.) em telado.
Uso de plantas de cobertura e efeitos no nitrogênio mineral no solo sob sistema plantio direto no cerrado.
Uso de plantas de cobertura e efeitos no rendimento de milho em sistema plantio direto no cerrado.
Galactic cannibalism in the galaxy cluster C0337-2522 at z=0.59
According to the galactic cannibalism model, cD galaxies are formed in the
center of galaxy clusters by merging of massive galaxies and accretion of
smaller stellar systems: however, observational examples of the initial phases
of this process are lacking. We have identified a strong candidate for this
early stage of cD galaxy formation: a group of five elliptical galaxies in the
core of the X-ray cluster C0337-2522 at redshift z=0.59. With the aid of
numerical simulations, in which the galaxies are represented by N-body systems,
we study their dynamical evolution up to z=0; the cluster dark matter
distribution is also described as a N-body system. We find that a multiple
merging event in the considered group of galaxies will take place before z=0
and that the merger remnant preserves the Fundamental Plane and the
Faber-Jackson relations, while its behavior with respect to the Mbh-sigma
relation is quite sensitive to the details of black hole merging [abridged].Comment: 30 pages, 7 figures, MNRAS (accepted
Variação sazonal de macronutrientes em videiras cv. Petite Syrah no Submédio São Francisco.
O objetivo deste trabalho foi monitorar os teores de macronutrientes em folhas, pecíolos e ramos durante a fase fenológica de maturação dos cachos num ciclo produtivo da cv. Petite Syrah, fornecendo um indicativo da demanda por nutrientes no final do ciclo
Heritability of motor skills: Study with monozygotic and dizygotic twins
El objetivo del estudio fue evaluar el poder relativo de contribución
genética y ambiental de la variación de capacidades motoras en gemelos
monocigóticos y dicigóticos. Método: participado 88 sujetos divididos en 56
monocigóticos y 32 dicigóticos de ambos sexos. Para la evaluación de la
flexibilidad fue realizado el test de flexión de cadera; para la potencia de
miembros inferiores fue aplicado el test contra movimiento y para la velocidad de
desplazamiento, el test de carrera de 30m. Para determinar el índice de
heredabilidad, utilizamos la ecuación: (h²) = (S²DZ–S²MZ)/S²DZx100. Fue
utilizado tratamiento descriptivo y el test Shapiro-Wilk. Con la varianza de datos
fueron calculados valores de tendencia central. Los datos fueron categorizados
en percentiles de 25%. Resultados: flexibilidad 16%, velocidad de
desplazamiento 83% y potencia de los miembros inferiores 70%.Conclusión:
Fue evidenciado mayor heredabilidad para las variables de potencia y velocidad,
y mayor influencia ambiental para la flexibilidadThe aim of the study was to assess the relative power of genetic and
environmental contributions to the variation of motor skills in monozygotic and
dizygotic twins. Method: For this study, participated 88 people divided in 56
monozygotic and 32 dizygotic twins of both sexes. For the assessment the
flexibility, was performed hip flexion test, for assessment the lower limb power,
was applied the test against movement and the speed of movement, the 30m
running test. To determine the index of heritability, was used an equation: (h ²)
= (S ²MZ- S²DZ) / S²DZx100. For the statistic, was used the descriptive
treatment and Shapiro-Wilk test. The variance values were calculated, through
the tendency central values. Data were categorized into percentiles of 25%.
Results: Flexibility was 16% by heritability influence, speed of movement 83%
of influence and for the lower limbs power were 70%. Conclusion: In this study
was demonstrated higher heritability for the variables of lower limbs power and
the speed of movement, and for the flexibility, a greater influence was linked for
environmental factor
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