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| Registros recuperados: 122 | |
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| Dias,Adaan S.; Lima,Geovani S. de; Sá,Francisco V. da S.; Gheyi,Hans R.; Soares,Lauriane A. dos A.; Fernandes,Pedro D.. |
| ABSTRACT The problem of the lack of adequate water resources for agriculture has intensified in recent years, making it necessary to use waters with relatively high concentration of salts for the irrigation of crops all over the world. The objective of this study was to evaluate the influence of potassium (K) fertilization as a salt stress attenuator on gas exchanges and photochemical efficiency of West Indian cherry. The crop was cultivated under greenhouse conditions in the municipality of Campina Grande, PB, in lysimeters filled with 250 kg of sandy loam soil. Treatments were distributed in randomized blocks, in a 2 x 4 factorial scheme, with two levels of electrical conductivity of irrigation water - ECw (0.8 and 3.8 dS m-1) and four K doses (50, 75,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malpighia emarginata; Saline stress; Physiology; Fruit crops. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900628 |
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| Silva,André A. R. da; Lima,Geovani S. de; Azevedo,Carlos A. V. de; Veloso,Luana L. de S. A.; Gheyi,Hans R.; Soares,Lauriane A. dos A.. |
| ABSTRACT This study aimed to evaluate the gas exchanges and photosynthetic pigments of soursop seedlings cv. ‘Morada Nova’ irrigated with saline waters and subjected to exogenous application of hydrogen peroxide by seed soaking and foliar spraying. The study was carried out using plastic bags under greenhouse conditions at the Center of Technology and Natural Resources of the Federal University of Campina Grande, PB, Brazil, using a eutrophic Regolithic Neosol of sandy loam texture. Treatments were arranged in a randomized block design, in 5 x 5 factorial scheme, which consisted of five levels of electrical conductivity – ECw (0.7; 1.4; 2.1; 2.8 and 3.5 dS m-1) of irrigation water and five concentrations of hydrogen peroxide - H2O2 (0, 25, 50, 75 and 100... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annona muricata L.; Saline waters; Physiology. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000400257 |
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| Murakami,André S. N.; Shima,Sulene N.; Desuó,Ivan C.. |
| In the primitively eusocial wasps, especially Polistini and Mischocyttarini tribes, the physiological condition of each individual is strongly associated with its dominance status in the colonial hierarchy. As a rule, in independent-founding wasps, female wasps are all morphologically alike, and their role is apparently quite flexible even as adults. However, some studies have shown that differences in body size can exist between reproductive and non-reproductive females. Thus, the present study aimed at detecting differences between reproductive (inseminated) and non-reproductive (uninseminated) individuals based on morphological and physiological parameters. We tape-recorded the daily behavioural repertory of six colonies of Mischocyttarus cassununga for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dominance; Social hierarchy; Morphometry; Physiology; Mischocyttarini. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000400017 |
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| Ramos,Alessandre Gabriel Oliveira; Donato,Sérgio Luiz Rodrigues; Arantes,Alessandro de Magalhães; Coelho Filho,Maurício Antônio; Rodrigues,Maria Geralda Vilela. |
| Abstract The objective of this study was to evaluate gas exchange and production of Maçã bananas type, at different times of the year and the day in semi-arid environment. Seven genotypes genotypes were used: Maçã, Caipira, BRS Tropical, BRS Princesa, YB42-03, YB42-17 and YB42-47, arranged in a completely randomized experimental design with five replicates and four useful plants per plot. For the physiological characteristics, a factorial arrangement 7x7x2 was considered (seven genotypes, seven evaluation periods, two reading times, 8:00 a.m. and 2:00 p.m.). Photosynthetic rates, carboxylation efficiency, and instantaneous water use efficiency are higher at 8:00 a.m., due to meteorological conditions, while foliar temperature and transpiration are higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp; Climate; Physiology; Hybrids. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300702 |
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| BRITO,MARCOS ERIC BARBOSA; SÁ,FRANCISCO VANIES DA SILVA; SOARES FILHO,WLATER DOS SANTOS; SILVA,LUDERLÂNDIO DE ANDRADE; FERNANDES,PEDRO DANTAS. |
| ABSTRACT High salt concentration in water are common in Brazilian semirad region, being important to research alternatives for use this waters on crop, like use of tolerant genotypes to salinity. Thus, in order to evaluate the saline stress perception of citrus rootstocks varieties crop from gas exchange and fluorescence analysis, an experiment was realized in greenhouse at the Center for Science and Technology Agrifood, CCTA, of Federal University of Campina Grande, UFCG, Pombal, PB, Brazil. It was studied in a randomized block design with factorial scheme (2x4), two salinity levels (0.3 and 4.0 dSm-1) and four varieties of citrus rootstocks [1 -common Sunki mandarin (TSKC), 2 - Florida Rough lemon (LRF), 3 -Santa Cruz Rangpur lime (LCRSTC) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus spp.; Salinity; Physiology. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000200204 |
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| SILVA,JOSEANO GRACILIANO DA; LOPES,KILSON PINHEIRO; CAVALCANTE,JERFFESON ARAÚJO; PEREIRA,NATALI ALMEIDA EVANGELISTA; BARBOSA,ROBERTA CHAIENE ALMEIDA. |
| ABSTRACT This study aimed to evaluate the efficiency of different removal methods of sarcotesta and their effects on the physiological quality of the seeds. We applied the following treatments: T1 - friction in coarse sand on a sieve; T2 and T3 - immersion in sulfuric acid (98%) for 30 minutes and washing in water, with and without a vernalization for 48 hours in a refrigerator at 4 °C, respectively; T4 and T5 - natural fermentation for 72 hours, with seeds submitted and not submitted to drying in shade for seven days; and T6 - seeds with intact sarcotesta as control. The experiment was carried out in a completely randomized design. For the analysis of the viability and vigor, we used the germination test, germination on first count, germination speed... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Pomegranate Tree; Sarcotesta; Dormancy; Physiology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000702001 |
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| Silva,Tanismare Tatiana de Almeida; Guimarães,Renato Mendes; Pinho,Édila Vilela de Resende Von; Abreu,Luciana Aparecida de Souza. |
| The establishment of citrus orchards with rootstocks from seed with a low physiological quality has been a recurring problem. Low quality seeds directly affect both the final stand and the time required for seedling production. The irregular maturation of fruits, seed recalcitrance, and the high incidence of fungi, make long term storage difficult, even at low temperatures. This study evaluated the storage potential and the use of fungicide treatments on 'Swingle' citrumelo seeds extracted from fruits collected at two maturation stages, green or ripe. The seeds were subjected to a thermal treatment, treated with Derosal, Thiram or Tecto+Captan fungicides, packaged in impermeable polyethylene bags and stored in a cold chamber for nine months. Every three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 'Swingle' citrumelo; Physiology; Seed health; Conservation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222011000400019 |
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| Duarte,Silvana; Paiva,Marco A. R.; Lara,Camila C.; Bemquerer,Marcelo P.; Araújo,Francisco Gerson. |
| The enzymatic activities involved in the digestion of proteins and carbohydrates were compared among three organs of the digestive track of two Siluriformes fish species, and between two areas: a reservoir, and an area downriver of it. Our aim was to test the hypothesis that the digestive organs of species with varied feeding habits have different enzymatic activities, and that the enzymatic activity differs among seasons and environmental conditions. The iliophagous/herbivorous species Hypostomus auroguttatus Kner, 1854 had higher trypsin-like, chymotrypsin-like peptidase and β-glucosidase activity in the intestine when compared with the omnivorous species Pimelodus maculatus Lacepède, 1803, whereas the latter had more hepatic trypsin-like activity than... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enzymatic activity; Fishes; Physiology; Reservoirs; Siluriformes; Peptidases; Β-glucosidase. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000300006 |
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| Montoya-Mejía,Magnolia; García-Ulloa,Manuel; Hernández-Llamas,Alfredo; Nolasco-Soria,Hector; Rodríguez-González,Hervey. |
| ABSTRACT In this work, we studied the digestibility, growth, blood chemistry, and enzyme activity of Nile tilapia (Oreochromis niloticus) juveniles (0.95±0.18 g) using different animal (fish silage meal, whey meal, bovine blood meal, and red crab meal) and plant (extruded bean, extruded chickpea meal, coconut paste, Jatropha curcas meal, and chickpea meal) dietary byproducts. Nine isocaloric diets (321.92±9.10 kcal g−1) were evaluated for 60 days. The highest digestibility of crude protein values for animal and plant sources were obtained for the whey (93.6) and extruded bean meal (90.5) diets, respectively. The final body weight was higher for the red crab and extruded chickpea meal diets, meanwhile the fish silage and red crab byproducts obtained the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative byproducts; Digestive response; Formulated diets; Growth performance; Nile tilapia; Physiology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017001200873 |
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| Becker,Alessandra Janaína; Fogliarini,Carine de Oliveira; Souza,Carine de Freitas; Becker,Alexssandro Geferson; Mourão,Rosa Helena Veras; Silva,Lenise Vargas Flôres da; Baldisserotto,Bernardo. |
| ABSTRACT This study investigated the efficacy of essential oils of Lippia alba (EOLA) citral chemotype and Lippia origanoides (EOLO) and their effects on ventilatory frequency (VF) of silver catfish, Rhamdia quelen. Fish were exposed to 50-300 μL L−1 of EOLA and 25-300 μL L−1 of EOLO to determine induction times to sedation, anesthesia, and recovery. Moreover, VF was determined in fish exposed to 5 or 10 μL L−1 of EOLA and of EOLO for 8 h. The increasing concentration of essential oils proportionally decreased sedation and anesthesia induction times. The highest EOLA concentration increased VF of fish from the control group at 1 h of exposure, but VF decreased at both EOLO concentrations after 2 h. The EOLA citral chemotype and EOLO were effective... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Fish; Physiology; Rhamdia quelen. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100105 |
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| Medeiros Junior,Elias Fernandes de; Uehara,Silvio Akira; Rodrigues,Evelize Cristina; Palheta,Glauber David Almeida; Melo,Nuno Filipe Alves Correia de; Freire,Lícius de Sá; Takata,Rodrigo. |
| ABSTRACT The objective of this study was to evaluate menthol and eugenol as anesthetics for early juveniles of curimba, Prochilodus lineatus. Juveniles of 4.0±0.5 g and a total length of 8.8±0.1 cm were exposed to the anesthetics menthol (20, 30, 40, 50, 60, 70, and 80 mg L−1) and eugenol (20, 30, 40, 50, 60, and 70 mg L−1) up to deep anesthesia. The anesthetic effects were evaluated measuring the induction time to deep anesthesia (characterized by loss of equilibrium, absence of swimming, reduction of opercular movements, and responses only to intense tactile stimuli), recovery time, time to appetite return, and mortality rate after 96 h of procedure. The concentrations between 60 to 80 mg of menthol L−1 provided the lowest time of induction. Increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Physiology; Prochilodus lineatus; Stress. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100107 |
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| Campos,Paulo Henrique Reis Furtado; Le Floc'h,Nathalie; Noblet,Jean; Renaudeau,David. |
| ABSTRACT Global warming is one of the major environmental threats facing the world in the 21st century. This fact will have a significant impact on pig production due to its direct effects on welfare, health, and performance of pigs. Besides, the effects of high temperatures will presumably become more important over the next decades due to the development of pig production in developing countries mainly located in tropical and subtropical areas, where animals are often exposed to ambient temperatures above their thermal comfort zone. Furthermore, pigs reared in tropical areas are often confronted to sanitary challenges including poor hygiene conditions, lack of respect for sanitary rules, and pathogens. This results in the stimulation of the immune system... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal biometereology; Heat stress; Metabolism; Physiology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000600537 |
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| Lin,Min Jung; Chang,Shen Chang; Lee,Min Ting; Tien,Yong Tien; Liao,Jiunn Wang; Lee,Tzu Tai. |
| ABSTRACT The purpose of this study was to investigate the effects of gosling quality on their growth parameters, intestinal villus morphology, blood biochemistry, and nonspecific pathological lesions from 0 to 4 weeks old. Seventy-two goslings were randomly distributed into 12 pens, with each pen containing three males and three females in a completely randomized design of two control variables, including healthy and weak goslings. Healthy goslings all shared the same characteristics, such as good features with no abnormalities and full absorption of yolk sac. Albeit lighter body weight (<85 g/bird) and incomplete absorption of the yolk sac were found in the weak geese, no obvious disease was exhibited in them. Post mortem examination revealed that the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal production; Physiology; Poultry. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100515 |
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| Lopes,Lineker de Sousa; Gallão,Maria Izabel; Bertini,Cândida Hermínia Campos de Magalhães. |
| Phanerogam species reserve nutrients in their seeds in order to sustain propagation. Their chemical composition and the way the metabolites are used vary, according to genotype, the environment and the interaction between these factors. As the jatropha is considered a strategic oilseed crop in biofuel production, the aim of this work was to quantify the major reserve components (starch, protein, soluble sugar and lipid) of the jatropha seed and its disposition in the cells during different periods of germination, in order to understand the process of reserve mobilisation and to determine the potentially right time for the extraction of vegetable oil for that species. The seeds were soaked in water for 0; 12; 24; 36; 42; 45 and 48 hours, following a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas L.; Physiology; Oilseed crop. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000200021 |
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| Thira Tamwongsa; Amornrat Meesawat; Piyarat Itharat; Chanarong Jongkajornwit; Ladda Kongernnog; Chawanat Thongkam; Noungrathai Pungsook. |
| Numerical Taxonomy of the some Lowland - Black Rice in the Northeast of Thailand. Twenty-one specimens, Group and identification. The specimens were planted twice for the morphological characters were found to be useful for identification within the specimens, namely the high of culm, the color of internode, the color of leaf sheath, the color of collar, the color of auricle, the color of ligule, the color of leaf blade, the type of secondary branching of panicles, the color of sterile lemma, the color of apiculus lemma and palea, the color of stigma, the color of grain, the shape of grain, the color of brown rice, and the shape of brown rice, And hull anatomical characters. Results showed that, The Unweighted Pair Group Method with Arithmetic Mean (UPGMA)... |
| Tipo: Collection |
Palavras-chave: Taxonomy; Lowland rice; Morphology; Anatomy; Physiology; ข้าวก่ำนาสวน; อนุกรมวิธานเชิงตัวเลข; ลักษณะทางสัณฐานวิทยา; ลักษณะทางกายวิภาคศาสตร์; ภาคตะวันออกเฉียงเหนือ. |
| Ano: 2012 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5379 |
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| Registros recuperados: 122 | |
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