Field And Laboratory Tests
Mostrando 13-24 de 197 artigos, teses e dissertações.
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13. Multivariate analysis and vigor tests to determine the quality of Brachiaria decumbens seeds
RESUMO Este estudo teve por objetivo verificar a eficiência da análise multivariada na identificação de testes de vigor promissores para a avaliação da qualidade fisiológica de lotes de sementes de Brachiaria decumbens cv. Basilisk. Foram avaliados 13 lotes de sementes de B. decumbens, cv. Basilisk, quanto aos seguintes parâmetros: teor de água, ger
Rev. Ciênc. Agron.. Publicado em: 2019-06
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14. Growth promotion and productivity of lettuce using Trichoderma spp. commercial strains
RESUMO O objetivo deste trabalho foi avaliar quatro cepas de Trichoderma spp. (T. harzianum IBLF 006 WP, T. harzianum IBLF 006 SC, T. harzianum ESALQ 1306 e T. asperellum URM 5911) na promoção do crescimento de plântulas em laboratório e na produtividade de alface americana em campo. O delineamento experimental foi inteiramente casualizado com quatro tra
Hortic. Bras.. Publicado em: 15/04/2019
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15. Extensión de durabilidad de pistones de bombas de fractura hidráulica mediante el empleo de tecnología de nitruración por plasma y PVD
ABSTRACT Hydraulic stimulation technique consists of "fracturing" the formation (rock reservoirs) through pumping a fracturing fluid downhole. This operation is performed by using hydraulic fracturing pumps. The pistons of these pumps are mechanical components performing the intake and compressing fracture fluid by reciprocating action. During this alternati
Matéria (Rio J.). Publicado em: 19/07/2018
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16. HARVESTING FRUITS USING A MOBILE PLATFORM: A CASE STUDY APPLIED TO CITRUS
ABSTRACT Harvesting fruits and vegetables has been a challenge. Mobile platforms for harvesting vegetables and fruits have been used, but with some limitations, such as their applicability for a certain time of the year and for a specific crop. A mobile platform was initially developed for harvesting fresh market tomatoes, mainly staked in Brazil. However, a
Eng. Agríc.. Publicado em: 2018-04
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17. DYNAMIC OF PRESSURE-DEFORMATION CURVE IN UNIAXIAL COMPRESSION TEST IN DIFFERENT LOAD TIMES
ABSTRACT: The loading application time by machinery tires and agricultural tires is one of the factors of soil compaction. We evaluated the effect of loading reduction time in uniaxial compression test, in laboratory, in some physical and mechanical parameters, approaching the loading field condition time by machinery with laboratory tests. Soil samples of t
Eng. Agríc.. Publicado em: 2017-09
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18. Biology and nutrition of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed on different food sources
ABSTRACT: We studied Spodoptera frugiperda development using different food sources in the laboratory and field. Newly hatched larvae were fed soybean, cotton, maize, wheat, and oat leaves. An artificial diet was used as the control. Duration of pre-pupal, pupal, and larva-adult period, pupal weight, sex ratio, survival, larva feeding preferences, ovipositio
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02
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19. Heat pump for thermal power production in dairy farm
ABSTRACT Besides cold for milk cooling, dairy facilities need to produce hot water for cleaning of tools and equipment. Overall, ohmic heating has been used in dairy farms, increasing power consumption and manufacturing costs. Therefore, as an alternative to reduce power consumption, this paper proposed a water-water heat pumping for simultaneous cold and he
Eng. Agríc.. Publicado em: 2016-10
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20. Size and flight ability of Telenomus remus parasitoids reared on eggs of the factitious host Corcyra cephalonica
ABSTRACT In two independent bioassays, size and flight ability of parasitoids reared on eggs of Corcyra cephalonica for 19 generations and parasitoids reared on a natural host (Spodoptera frugiperda eggs) for 250 generations were compared as fast quality control procedures for insect rearing. The size of parasitoids was examined by morphometric analysis usin
Rev. Bras. entomol.. Publicado em: 2016-06
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21. Concrete road barriers subjected to impact loads: An overview
Abstract Concrete barriers prevent vehicles from entering the opposite lane and going off the road. An important factor in the design of concrete barriers is impact load, which a vehicle exerts upon collision with a concrete barrier. This study suggests that a height of 813 mm, a base width of 600 mm, and a top width of 240 mm are optimum dimensions for a co
Lat. Am. j. solids struct.. Publicado em: 2015-10
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22. Susceptibility of Triatoma sordida Stal, 1859 (Hemiptera: Reduviidae) to alpha-cypermethrin under natural climatic conditions
Abstract:INTRODUCTION:Despite the recommendations by interpretation of resistance ratios obtained in laboratory bioassays, little is known about the actual impact of these results in the effectiveness of vector control activities in the field. In this context, our objective was to determine the mean value of different resistance ratios obtained by laboratory
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-08
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23. Impact of insecticide resistance on the field control of Aedes aegypti in the State of São Paulo
IntroductionThe need to control dengue transmission by means of insecticides has led to the development of resistance to most of the products used worldwide against mosquitoes. In the State of São Paulo, the Superintendência de Controle de Endemias(SUCEN) has annually monitored the susceptibility of Aedes aegypti to insecticides since 1996; since 1999, sur
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-10
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24. Enteric viruses in turkey flocks: a historic review
In this review, diagnostic techniques and viral agents involved in enteric diseases affecting turkeys are described. Data from field observations and laboratory researches have been reported in turkey flocks for over 70 years, and several viruses have been identified. After a period of 30 years of inoculation experiments and neutralization studies, adequate
Rev. Bras. Cienc. Avic.. Publicado em: 2014-09