Leaf Area Duration
Mostrando 1-12 de 40 artigos, teses e dissertações.
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1. VEGETATIVE DEVELOPMENT AND GROWING DEGREE-DAYS OF TROPICAL AND WINTER FORAGES
ABSTRACT One of the limitations to producing irrigated forages is setting suitable biometric parameters to establish the entrance of animals to grazing areas. Such parameters can be measured or even estimated. Estimates are advantageous for being practical and able to be used for grazing optimization. This study aimed to evaluate the correlation among growin
Eng. Agríc.. Publicado em: 25/04/2019
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2. Reproductive phenology differs between evergreen and deciduous species in a Northeast Brazilian savanna
ABSTRACT Evergreen (EG) and deciduous (DEC) species exhibit distinct strategies to overcome dry periods and achieve adequate water status for reproduction and growth. Such particularities may result in distinct reproductive strategies between these groups. Thus, we evaluated the phenology of EG and DEC groups, comparing and differentiating their reproductive
Acta Bot. Bras.. Publicado em: 09/04/2018
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3. SUNFLOWER EMERGENCE AND INITIAL GROWTH IN SOIL WITH WATER EXCESS
ABSTRACT: Sunflower crops are grown in different regions worldwide. However, the stress caused by water excess in the soil impairs this crop growth and yield. The aim of the present study was to determine the response of sunflower plants to long periods of water excess during initial development stages. Water excess treatments were applied at the initial dev
Eng. Agríc.. Publicado em: 2017-08
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4. Crescimento de crambe na presença ou ausência de competição interespecífica
RESUMOCrambe (Crambe abyssinica) has a cropping cycle of around 90 days, being suitable as an alternative to the second grain crop planted after soybean is harvested in the Center West region of Brazil. It is necessary to understand the growth and development dynamics of crambe plants in order to allow correct management of the production factors. This study
Rev. Ceres. Publicado em: 2015-10
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5. Favorable conditions for Xanthomonas axonopodis infection in Eucalyptus spp.
Currently, Xanthomonas axonopodis is one of the main foliar pathogens for Eucalyptus spp. in Brazil. It induces leaf blight and defoliation of seedlings in the nursery and young plants in the field. However, little is known about thefavorable conditions for infection. The establishment and development of bacterial leaf blight caused by X. axonopodis in eucal
Trop. plant pathol.. Publicado em: 2014-12
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6. Avaliação ecofisiológica de subamostras de alho cv. Amarante / Ecophysiological evaluation of cv. Amarante garlic subsamples.
Garlic cultivars present different yield potentialities, expressed by the plant s morphological and physiological characteristics, according to the environment and cultural management. Thus, twenty sub-samples of garlic cv. Amarante belonging to the Germplasm Bank of the Universidade Federal de Viçosa (BGH/UFV) were evaluated for their morphological and phy
Publicado em: 2010
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7. Calibração e avaliação do modelo ORYZA-APSIM para o arroz de terras altas no Brasil / Calibration and evaluation of the ORYZA-APSIM model for the upland rice in Brazil
With the purpose of calibrating and evaluating the ORYZA-APSIM model for the upland rice in Brazil, seventeen field experiments were carried out at EMBRAPA Arroz e Feijão, in four upland rice Brazilian regions (Santo Antônio de Goiás-GO, Sorriso-MT, Gurupi and Teresina-PI), from 2005/2006 to 2008/2009 seasons. The model was calibrated and evaluated for an
Publicado em: 2010
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8. Longevidade foliar, compostos fenolicos e nitrogenados em arvores e lianas de um fragmento de Cerrado na Estação Experimental de Itirapína, São Paulo / Leaf life span, nitrogenous and phenolic compunds in trees and lianas from a Cerrado fragment in the Itirapina experimental station in São Paulo
Trees and lianas present different strategies for allocating resources during the phonological cycle. Whereas Lianas are important floristic components and account for a significant number of rainforest species, few studies have been conducted in the Cerrado (a savanna like vegetation) biome. The duration of the leaf life span in different species reflects b
Publicado em: 2010
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9. Fluxo de biomassa, produÃÃo de forragem e composiÃÃo quimico-bromatolÃgica do capim-mombaÃa sob adubaÃÃo e irrigaÃÃo / Flow of biomass, production of fodder plant and composition chemistry-bromatolÃgica of capim-mombaÃa under fertilization and irrigation
This work was carried out to evaluate the effects of different irrigation levels and rates of nitrogen on the morphogenetic and structural characteristics, yield production and the composition chemical-bromatologic of mombaÃagrass (Panicum maximum cv. MombaÃa). The study was conducted in the period from August to December 2007 on Unit Research of EMBRAPA M
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2009
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10. Asian Rust control and performance of two soybean cultivars submitted to different fungicides and application time / Controle de ferrugem asiática e desempenho de duas cultivares de soja submetidas a diferentes fungicidas e épocas de aplicações
Phakopsora pachyrhizi Syd. &Syd. is the worst threat for soybean crop in the main producers regions around the world, where significant loses has been observed. Many variables in the quantification of damage of this disease have to be studied, such as area under the disease progress curve (AUDPC), healthy leaf area absorption (HAA), healthy leaf area duratio
Publicado em: 2009
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11. Desenvolvimento e produtividade da cana-de-açúcar em ambiente protegido sob diferentes níveis freáticos / Development and productivity of the sugarcane in greenhouse under different water table
The aim of this work was to evaluate the effect of level and time of freatic elevation on variables related to plant growth, development, productivity and technological parameters of sugarcane crop. The experiment was carried out in a 120-m2 greenhouse, set up at the research station of the Rural Engineering Department Luiz de Queiroz College of Agriculture
Publicado em: 2009
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12. Crescimento, fotossíntese e partição de assimilados em genótipos de arroz irrigado / Growth, photosynthesis and assimilate partitioning of irrigated rice genotypes
xii In this study, photosynthetic characteristics of irrigated rice (Oryza sativa L.) genotypes were evaluated. It were also evaluated with relation to growth and assimilates partitioning characteristics rice cultivars differing in yield potential, BRS Pelota (higher yield) and BRS Firmeza (lower yield). No correlation between maximum efficiency of PS2 photo
Publicado em: 2008