Cotton Growing
Mostrando 1-12 de 50 artigos, teses e dissertações.
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1. Survival, development and reproduction of Phenacoccus solenopsis (Hemiptera: Pseudococcidae) on kaolin-treated cotton
Resumo A cochonilha Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) é uma praga de algodão, amplamente, difundida em várias regiões produtoras do Brasil, particularmente, na região semiárida do sudoeste da Bahia. O impacto do caulim na sobrevivência, desenvolvimento e reprodução de P. solenopsis foi avaliado em laboratório. O delineament
Braz. J. Biol.. Publicado em: 25/11/2019
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2. Boll weevil within season and off-season activity monitored using a pheromone-and-glue reusable tube trap
ABSTRACT: The boll weevil colonizes cotton fields as early as cotton squaring, causing significant losses due to feeding and protected development inside fruiting structures throughout crop phenology. Successful control depends on control of adults and their accurate detection when they colonize the crops. The commercial trap and boll weevil attract-and-cont
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-08
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3. Nutrient Uptake by High-Yielding Cotton Crop in Brazil
ABSTRACT: Determining nutrient uptake and accumulation rates by cotton crops is important to define management strategies, especially for transgenic varieties, which are cultivated using high-technology approaches that require substantial investment to maximize yield. Currently in Brazil, the states of Bahia and Mato Grosso are responsible for 84.4 % of the
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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4. USING PASSIVE AND ACTIVE MULTISPECTRAL SENSORS ON THE CORRELATION WITH THE PHENOLOGICAL INDICES OF COTTON
ABSTRACT: The investment in precision agriculture technologies has been growing as well the investment in vegetation index sensors with different types of data collection. This study aimed to evaluate the NDVI potential use obtained from passive and active multispectral sensors as phenological parameters indicator of cotton growth. The experiment was conduct
Eng. Agríc.. Publicado em: 2017-08
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5. Infection process of Phakopsora gossypii in cotton leaves
ABSTRACT Tropical rust caused by the biotrophic fungus Phakopsora gossypii is an emerging disease in cotton that has caused significant yield losses of crop/cotton cultivated in Brazil. Considering the current importance of tropical rust and the need to obtain additional basic information about its causal agent to better control this disease, the present stu
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-08
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6. Phenotypic variability among isolates of Ramularia areola from Brazilian cotton
There is a lack of information about the level of resistance of cotton genotypes to a wider range of Ramularia areola isolates occurring across the cotton growing areas of Brazil. For this purpose, firstly it is necessary to know the existence or not of genotypic and phenotypic variability among the R. areola isolates from different geographical origins. The
Trop. plant pathol.. Publicado em: 02/08/2013
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7. Índice de agresividad espacial (IAE) de Chenopodium album en el cultivo de algodón para santiago del estero, Argentina
The Space Aggressiveness Index (SAI) is a bio-ecological parameter that depicts weed distribution characteristics. There are not antecedents about this subject in cotton crop. This paper was aimed at determining the space aggressiveness index for Chenopodium album (CHEAL) and relating it to yield losses. Work was done on the Guazuncho-INTA cultivar throughou
Planta Daninha. Publicado em: 2011-09
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8. Decisão de investimento de capital em empresas algodoeiras / Decision of capital investment in cotton companies
This thesis investigates capital equipment analysis and investment projects in cotton gins, raw cotton and oil seed processing units. The Brazilian cotton industry passed through a crisis in competitiveness during the 1980s and 1990s, however, more recently, it has regained international reputation with a high quality product reaching high export levels as w
Publicado em: 2009
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9. Estabilidade fenotípica de genótipos de algodoeiros obtidos por semigamia no Estado de Minas Gerais
The objectives of this research were: to evaluate the performance of doublehaploid cotton genotypes (HD) in relation to their parental genotypes in three contrasting environments of the state of Minas Gerais, Brazil, and to determine the possible genotype by environment interactions and stability and adaptability parameters. In the state of Minas Gerais, Bra
Publicado em: 2008
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10. Screening of Bacillus thuringiensis strains toxic to the cotton aphid (Aphis gossypii) / Seleção de estirpes de Bacillus thuringiensis tóxicas ao pulgão do algodoeiro (Aphis gossypii)
The production of the cotton crop is growing and exposes this culture to severe attack of various pests, including the cotton aphid (Aphis gossypii). This insect has caused 44% loss to the culture of cotton, attacking the initial stages of the crop. The continuous sucking sap deforms the shoots, hampers the development of the plant and also expels a sugar se
Publicado em: 2008
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11. Determination of pesticides multiresidues in shallow groundwater in a cotton-growing region of Mato Grosso, Brazil
Foi desenvolvido um método multirresíduos empregando CLAE/DAD para a determinação de doze pesticidas em águas subterrâneas em lavouras de algodão, baseado em extração em fase sólida, utilizado como adsorvente o copolímero estireno divinilbenzeno (SDVB). O método foi validado e obtiveram-se recuperações entre 73 e 113%, desvio padrão relativo e
Journal of the Brazilian Chemical Society. Publicado em: 2008
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12. Emissões de CO2, NOx e N2O em solos sob diferentes cultivos na região do cerrado / CO2, NOx and N2O emissions from soils to the atmosphere under differente cropping systems in the cerrado region
The objective of the study was to evaluate the CO2, NO, N2O emissions from Oxisols (Latossolos) under different no-till cropping systems in the Cerrado region (Central Brazil). The results are presented in three chapters. Chapter 1 presents a study on the effects of increasing doses of nitrogen fertilizer on the fluxes of trace gases along the crop cycle of
Publicado em: 2008