Mosquito repellent thermal stability,permeability and air volatility     

Antnio B Mapossa  Alcides Sitoe  Walter W Focke  Homa Izadi  Elizabeth L du Toit  Ren Androsch  Chanita Sungkapreecha  Elizabet M van der Merwe 《Pest management science》2020,76(3):1112-1120

  相似文献   

Climate‐based seasonal dynamics of the invasive red palm mite Raoiella indica     

Ricardo Siqueira da Silva  Elisngela Gomes Fidelis  George Amaro  Rodrigo Soares Ramos  Paulo Antnio Santana Junior  Marcelo Coutinho Picano 《Pest management science》2020,76(11):3849-3856

  相似文献   

Honey as the Potential Natural Source of Cholinesterase Inhibitors in Alzheimer’s Disease     

Baranowska-Wójcik  Ewa  Szwajgier  Dominik  Winiarska-Mieczan  Anna 《Plant foods for human nutrition (Dordrecht, Netherlands)》2020,75(1):30-32

Plant Foods for Human Nutrition - Alzheimer’s disease (AD) is a progressive neurodegenerative disease characterized, among others by abnormal levels of acetyl- and butyrylcholinesterase in...  相似文献   

Exogenous Salicylic Acid Improves Phenolic Content and Antioxidant Activity in Table Grapes     

Blanch  Gracia Patricia  Gómez-Jiménez  Maria C.  del Castillo  Maria Luisa Ruiz 《Plant foods for human nutrition (Dordrecht, Netherlands)》2020,75(2):177-183

Plant Foods for Human Nutrition - Grapes contain high contents of phenolics, which are known to possess health promoting properties. Exogenous application of phytoregulators, mainly methyl...  相似文献   

Application to soil of disinfectants through irrigation reduces Verticillium dahliae in the soil and verticillium wilt of olive     

F. J. Gómez-Gálvez  V. Vega-Macías  J. C. Hidalgo-Moya  J. J. Hidalgo-Moya  D. Rodríguez-Jurado 《Plant pathology》2020,69(2):272-283

The application of disinfectants through drip irrigation could be a feasible practice against verticillium wilt (Verticillium dahliae) of olive. OX-VIRIN (activated peroxide) and OX-AGUA AL25 (quaternary ammonium compounds) are two disinfectants that have shown efficacy against V. dahliae in irrigation water and potential for reducing the disease in young olive plants. In this work, various post-planting application strategies incorporating OX-VIRIN (once a month, or twice a month on alternate or successive weeks) or OX-AGUA AL25 (once a month, or twice a month on alternate weeks) were assessed for their effect on V. dahliae in soil, disease in olive trees, and olive yield, in a 2-year pot-experiment under natural environmental conditions. The disinfectants were injected via metering pumps into a drip irrigation system that irrigated olive trees planted in V. dahliae-inoculated soil. All the application strategies significantly reduced the total inoculum density in soil compared to controls with no disinfectants and noninoculated soil. The microsclerotia density was also significantly reduced in disinfested soils by 73.6–86.8%, depending on the strategy. The symptoms and infection incidence were always lower in treatments subjected to disinfestation. The treatment with OX-AGUA AL25 applied twice a month on alternate weeks most reduced the symptoms (by 53.0%) and colonization index (by 70.8%) with respect to untreated water control. This soil disinfestation also significantly strengthened the symptom remission. Tree growth and production were negatively affected by soil inoculation (reduced by 45.6% and 88.7%, respectively), but not so by disinfectants, which even relieved the reduction in inoculated soils, especially when OX-AGUA AL25 was applied.  相似文献   

Sensitivity of Seeds to Chemical Mutagens,Detection of DNA Polymorphisms and Agro-Metrical Traits in M1 Generation of Coffee (Coffea arabica L.)     

Vargas-Segura  César  López-Gamboa  Emmanuel  Araya-Valverde  Emanuel  Valdez-Melara  Marta  Gatica-Arias  Andrés 《Journal of Crop Science and Biotechnology》2019,22(5):451-464

Journal of Crop Science and Biotechnology - Coffee (Coffea Arabica L.) is threatened by biotic and abiotic stresses. Nevertheless, the breeding of Arabica coffee is restricted due to its low...  相似文献   

Sex reversal and growth performance in juvenile females of the freshwater crayfish <Emphasis Type="Italic">Cherax quadricarinatus</Emphasis> (Parastacidae): effect of increasing temperature and androgenic gland extract in the diet     

Mariana Sánchez De Bock  Laura Susana López Greco 《Aquaculture International》2010,18(2):231-243

Monosex male culture of C. quadricarinatus is proposed for increasing yields because males reach a larger size at harvest than females. An experiment was done to evaluate the effects of androgenic gland extract and temperature on sex reversal and somatic growth in early juvenile females. Females were exposed to the following experimental conditions: C: control food and temperature maintained at 26 ± 1°C; HT (high temperature): control food and temperature maintained at 28.5 ± 1°C; VHT (very high temperature): control food and temperature maintained at 31 ± 1°C; AG: food with enriched with androgenic gland (1/10 dose for each juvenile per day) and temperature maintained at (26 ± 1)°C. The juveniles were weighed, sexed, and growth increment (GI) and growth rate (GR) were calculated twice a month. The HT and AG groups differed from the C group in GI and GR indicating a greater somatic growth. At the end of the experiment, the HT and AG groups had similar weight but only the HT group had enhanced oocyte diameter, with some vitellogenic oocytes compared to the C group. In the HT group, there was significant sex reversal, as indicated by development of male and intersex male characteristics in different individuals. Both temperature and AG diet have a high potential for culture of this species because of their enhancement of somatic growth; higher temperature increases the proportion of males, a desirable characteristic of cultured populations.  相似文献   

Effect of dietary <Emphasis Type="SmallCaps">l</Emphasis>-tryptophan on cannibalism,survival and growth in pikeperch <Emphasis Type="Italic">Sander lucioperca</Emphasis> (L.) post-larvae     

Jarosław Król  Zdzisław Zakęś 《Aquaculture International》2016,24(2):441-451

The effect of supplemented commercial diets with crystalline l-tryptophan (TRP—5, 10 and 20 g TRP kg^?1) on cannibalism, survival and growth parameters of pikeperch post-larvae (Sander lucioperca) was evaluated. Fifteen-day-old pikeperch larvae (mean weight—6.8 mg) were reared during the next 28 days (20.5 °C, 16L:8D) in glass aquaria in a recirculating aquaculture system. The enzyme-linked immunosorbent assay showed that TRP-supplemented diets were effective in increasing the levels of serotonin (5-HT) in the body tissue of pikeperch. TRP supplementation resulted in a slight decrease in both types of cannibalism, although the reduction in cannibalism impact did not amount to more than a few percent. TRP treatment had no significant influence on the final survival of pikeperch post-larvae (ranged from 20.1 ± 12.4 to 29.0 ± 12.9 %). However, contrary to the earlier studies conducted on other fish species, no significant difference in the growth rates and feeding behavior of pikeperch between TRP-fed and control group were found. The final body weight and growth rate ranged from 0.211 ± 0.014 to 0.243 ± 0.016 and from 12.19 ± 0.38 to 12.76 ± 0.35 % day^?1, respectively. To our knowledge, this is the first study reporting the effects of TRP supplementation on the cannibalism–survival–growth relations in fish in the post-larval stage.  相似文献   

Effects of no‐take area size and age of marine protected areas on fisheries yields: a meta‐analytical approach     

Frederic Vandeperre  Ruth M. Higgins  Julio Sánchez‐Meca  Francesc Maynou  Raquel Goñi  Pablo Martín‐Sosa  Angel Pérez‐Ruzafa  Pedro Afonso  Iacopo Bertocci  Romain Crec’hriou  Giovanni D’Anna  Mark Dimech  Carmelo Dorta  Oscar Esparza  Jesús M. Falcón  Aitor Forcada  Ivan Guala  Laurence Le Direach  Concepción Marcos  Celia Ojeda‐Martínez  Carlo Pipitone  Patrick J. Schembri  Vanessa Stelzenmüller  Ben Stobart  Ricardo S. Santos 《Fish and Fisheries》2011,12(4):412-426

Marine protected areas (MPAs) are often promoted as tools for biodiversity conservation as well as for fisheries management. Despite increasing evidence of their usefulness, questions remain regarding the optimal design of MPAs, in particular concerning their function as fisheries management tools, for which empirical studies are still lacking. Using 28 data sets from seven MPAs in Southern Europe, we developed a meta‐analytical approach to investigate the effects of protection on adjacent fisheries and asking how these effects are influenced by MPA size and age. Southern European MPAs showed clear effects on the surrounding fisheries, on the ‘catch per unit effort’ (CPUE) of target species, but especially on the CPUE of the marketable catch. These effects depended on the time of protection and on the size of the no‐take area. CPUE of both target species and the marketable catch increased gradually by 2–4% per year over a long time period (at least 30 years). The influence of the size of the no‐take area appeared to be more complex. The catch rates of the entire fishery in and around the MPA were higher when the no‐take areas were smaller. Conversely, catch rates of selected fisheries that were expected to benefit most from protection increased when the no‐take area was larger. Our results emphasize the importance of MPA size on its export functions and suggest that an adequate, often extended, time frame be used for the management and the evaluation of effectiveness of MPAs.  相似文献   

Growth and reproduction of the lion's paw scallop Nodipecten subnodosus in a suspended culture system at Guerrero Negro lagoon,Baja California Sur,Mexico     

Marcial Arellano‐Martínez  Bertha Patricia Ceballos‐Vázquez  César Ruíz‐Verdugo  Edgar Pérez de León  Rafael Cervantes‐Duarte  Pedro Martin Domínguez‐Valdéz 《Aquaculture Research》2011,42(4):571-582

The lion's paw scallop, Nodipecten subnodosus (Sowerby) has considerable aquacultural potential due to its fast growth and large adductor muscle. Prior investigations throughout northwestern Mexico's littoral have reported highly variable growth rates; furthermore, no studies are available of the environment on growth and gametogenesis in this species under culture conditions. This investigation assesses the effect of food availability and temperature on the growth and gametogenesis of N. subnodosus in a suspended culture system at Guerrero Negro lagoon, Mexico. After 1 year of cultivation, N. subnodosus reached 69.13 mm in shell height (SH) (0.196 mm day^?1, 14 months old). Two significant growth spurts were observed: over the two first months of culture (August and September 2001, mean growth rate 0.4 mm day^?1) and in September 2002 (0.3 mm day^?1), both related to high temperatures and chlorophyll a concentrations. The onset of gametogenesis occurred in April 2002, with an increase in temperature (10‐month‐old scallops, 54.5 mm SH). The first spawning occurred in October and November (86.2 and 93 mm SH), with peak temperatures. These results, together with the analysis of previous reports, indicate that N. subnodosus has a higher preference for temperate areas; therefore, the Guerrero Negro lagoon appears to be a suitable site to culture this species.  相似文献