Yield Plateau
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Plot size for evaluation of Arabica coffee yield
ABSTRACT. In most cases, in genetic breeding of Arabica coffee, plot size is defined in an empirical manner. It is often based only on the experience of the breeders and the availability of resources, potentially leading to a reduction in precision. Therefore, the aim of this study was to estimate the size of the experimental plot for evaluation of coffee yi
Acta Sci., Agron.. Publicado em: 23/09/2019
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2. Optimal plant density and nitrogen rates for improving off-season corn yields in Brazil
ABSTRACT: Integrating plant density and nitrogen (N) management is a strategy for improving corn yields, especially for off-season corn production in the tropics. This study tested the hypothesis that increasing plant densities and N rates promotes yield gains for off-season corn production in high-yielding environments. The aim of the study was to investiga
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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3. Assessment of the yield loss imparted by Orobanche aegyptiaca in tomato in Pakistan
Abstract Broomrapes (Orobanche sp.) are root holoparasitic plants causing severe damage to various families of horticultural crops. A Preliminary survey was carried in tomato fields infested with orobanche in Potohar plateau of Pakistan. Results indicated that each planting bed comprising10-12 tomato plants contained 7-8 parasitic weeds. Overall survey indic
An. Acad. Bras. Ciênc.. Publicado em: 01/11/2018
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4. Effects of genotype and environment on grain yield and quality traits in bread wheat (T. aestivum L.)
Genotype (G), environment (E) and their interaction (GEI) play an important role in the final expression of grain yield and quality attributes. A multi-environment trial in wheat was conducted to evaluate the magnitude of G, E and GEI effects on grain yield and quality of wheat genotypes under the three rainfed locations (hereafter environment) of Central An
Food Sci. Technol. Publicado em: 2014-06
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5. Digestible tryptophan requirements for broilers from 22 to 42 days old
The objective of this experiment was to establish different criteria to evaluate the requirements of digestible tryptophan for broilers from 22 to 42 d of age, using different regression models (quadratic, exponential and Linear Response Plateau) and in case of statistical significance the comparison of means by Duncan test at 5% probability was also adopted
R. Bras. Zootec.. Publicado em: 2013-10
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6. Digestible methionine + cystine requirement for Nile tilapia from 550 to 700 g
This trial was conducted to determine the dietary digestible methionine + cystine requirement of Nile tilapia (550 to 700 g) based on the ideal protein concept. Six hundred fish were distributed in a completely randomized design with five treatments and four replicates, with 30 fish per experimental unit. The fish were fed diets containing approximately 262
R. Bras. Zootec.. Publicado em: 2013-01
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7. Application of the Hybrid-Maize model for limits to maize productivity analysis in a semiarid environment
Effects of meteorological variables on crop production can be evaluated using various models. We have evaluated the ability of the Hybrid-Maize model to simulate growth, development and grain yield of maize (Zea mays L.) cultivated on the Loess Plateau, China, and applied it to assess effects of meteorological variations on the performance of maize under rai
Sci. agric. (Piracicaba, Braz.). Publicado em: 2012-10
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8. Estudo comparativo de respostas da banana Ãs aplicaÃÃes de fertilizante mineral e biofertilizante na Chapada do Apodi - CE / Comparative study on the responses of the banana to mineral fertilizer and biofertilizer applications
The liquid biofertilizers have been used with relative success in the recovery of banana plantations that have low productivity due to long time of cultivation. The area of the present study needs further investigations because there is little information available related to the cultural practices that could increase the time of the crop yield. The objectiv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/11/2011
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9. Desempenho de bananeiras irrigadas em resposta a diferentes profundidades efetivas do solo na Chapada do Apodi - CE / Performance of banana in response to different irrigation effective soil depth in the Apodi Plateau - CE
The production of banana can be affected whether plants are cropped in sites with physical impedances, as those found in shallow soils. The aim of this research was to verify if irrigated banana plants performance is affected by effective soil depth, and for this purpose were evaluated both soil physical and chemical attributes, as well as plants nutritional
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2011
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10. Base genetica das cultivares de arroz (Oryza sativa L.) irrigado do Brasil.
Foram analisadas as genealogias de 42 cultivares de arroz irrigado recomendadas para cultivo no Brasil, de 1980 a 1992. Verificou-se que apenas dez ancestrais contribuem com 68% do conjunto genico das variedades brasileiras de arroz irrigado. Considerando as cultivares mais plantadas nos principais estados produtores de arroz irrigado, constata-se que sete a
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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11. Crescimento e produÃÃo da bananeira em funÃÃo da adubaÃÃo com nitrogÃnio, fÃsforo e potÃssio na Chapada do Apodi. / Growth and yield of banana as a function of nitrogen, phosphorus and potassium in the Apodi Plateau
Com o objetivo de estudar o efeito das diferentes doses de NPK no crescimento e produÃÃo da bananeira âPacovan Apodiâ, realizou-se este experimento na Ãrea da empresa FRUTACOR, no distrito de Cercado do Meio, situado no municÃpio de QuixerÃ, Estado do CearÃ. As mudas foram transplantadas em setembro de 2008, no espaÃamento de 3,5 m entre fileiras du
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2009
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12. Levels of irrigation and potassium doses applied by drip irrigation in cultivation of banana for the region at the Apodi plateau-CE / Níveis de irrigação e doses de potássio aplicados por gotejamento na cultura da bananeira para a região da Chapada do Apodi-CE
The region at the Apodi plateau in northeastern Ceará, has been increasing in recent years as a major pole production and marketing of tropical fruits of the state and also in northeastern Brasil, especially as regards the banana plant irrigated agribusiness. In this region the Prata anã varieties, Pacovan and rata Graúda (Pacovan Apodi) are the most plan
Publicado em: 2009