Resultados de búsqueda - "biology"

El coquito (Cyperus rotundus L.) en el cultivo de yuca: Interacciones y control por Leihner, D.E., Holguin V., J., López M., J.

“…Recent information on the biological balance between purple nutsedge (Cyperus rotundus) and cassava is analyzed; the possibilities of influencing this balance to favor cassava are also studied. …”
Enlace del recurso

Old and new hostparasitoid associations: parasitism of the invasive fruit fly Bactrocera invadens (Diptera: Tephritidae) and five African fruit fly species by Fopius arisanus, an A... por Mohamed, S.A., Ekesi, S., Hanna, R.

“…The results are discussed in the light of the potential use of F. arisanus as a biological control agent of B. invadens.…”
Enlace del recurso

Integrated management of arthropod pests of cassava: the case of Southeast Asia por Graziosi, Ignazio, Wyckhuys, Kris A.G.

“…We outline future opportunities for Integrated Pest Management (IPM) and arthropod biological control, and lay the basis for multi-disciplinary efforts to safeguard the long-term productivity, sustainability and agro-ecosystem health of one of Asia’s primary agricultural commodities. …”
Enlace del recurso

Integrated pest management for cowpea cereal cropping systems in the West African savannah por Adati, T., Tamò, Manuele, Yusuf, S.R., Downham, M.C.A., Singh, B.B., Hammond, W.

“…To control these insects in a sustainable manner, pest management practices such as the use of resistant cowpea varieties, mixed cropping systems, botanical and reduced risk insecticides, and biological control assisted by pest monitoring have been developed. …”
Enlace del recurso

Modeling farmers decisions on child labor and schooling in the cocoa sector: a multinomial logit analysis in Cote dIvoire por Nkamleu, G.B., Kielland, A.

“…Econometric results generally indicate that the gender and age of children, whether or not the child is the biological child of the household head, parents' education, the origin of the farmer, household welfare, household size, the household dependency ratio, the size of other perennial crop farms, the number of sharecroppers working with the household head, and communities' characteristics are all pertinent in explaining the child work/schooling outcome in the cocoa sector of Côte d'Ivoire.…”
Enlace del recurso

Climate-resilient seed systems and access and benefit-sharing in Rwanda por Gapusi, J.R., Otieno, G.

“…The theme used case studies to reflect upon climate resilience and access and benefit-sharing (ABS) mechanisms, specifically with respect to the national policy and legal environment for ABS, and the practical issues involved in the access to and exchange of plant genetic resources for food and agriculture (PGRFA) through the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA) or the Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from the Utilization of Genetic Resources of the Convention on Biological Diversity (Nagoya Protocol/CBD). The objective of the study was to analyse how climate change has affected agricultural productivity in Rwanda, and the strategies that have been put in place to facilitate access to PGRFA required for climate change adaptation. …”
Enlace del recurso

Occurrence and activity of Bemisia tabaci parasitoids on cassava in different agro-ecologies in Uganda por Otim, M., Legg, James P., Kyamanywa, S., Polaszek, A., Gerling, D.

“…Such an understanding is an essential prerequisite for the development of biological control methods of B. tabaci to complement current CMD control practices. …”
Enlace del recurso

The impacts of aflatoxin standards on health and nutrition in sub-Saharan Africa: The case of Kenya por Sirma, A.J., Lindahl, Johanna F., Makita, K., Senerwa, D., Mtimet, Nadhem, Kang’ethe, E.K., Grace, Delia

“…Human food and animal feed can contain many different hazards, which may be biological, chemical, or physical. In most countries, there are regulations that limit the levels of these hazards permitted in food and feed so as to protect consumers. …”
Enlace del recurso

Corralling, planting density, and N fertilizer rate effect on soil properties, weed diversity, and maize yield por Abdul Rahman, Nurudeen, Larbi, Asamoah, Opoku, A., Tetteh, F.M., Hoeschle-Zeledon, I.

“…The SDSG at 70 and 140 head ha−1 increased (P < 0.01) soil chemical and biological properties and weed diversity compared with the control in both cropping seasons. …”
Enlace del recurso

Bionomics of Mussidia nigrivenella (Lepidoptera: Pyralidae) on three host plants por Sétamou, M., Schulthess, F., Bosque Pérez, N.A., Poehling, H.M., Borgemeister, C.

“…Thus, jackbeans should be recommended for use in mass rearing programmes of M. nigrivenella, e.g. as a host for parasitoids in future biological control programmes. Because of the high suitability of jack- and velvetbeans for M. nigrivenella, planting of these increasingly important cover crops should be timed in such a manner that the emergence of female moths from mature pods does not coincide with maize plants in a suitable developmental stage for oviposition and development of young M. nigrivenella larvae…”
Enlace del recurso

Multidisciplinary approach to pest management and the African farmer por Okigbo, B.

“…All these require (i) changes in biological education and training, (ii) better communication among scientists and the public, and (iii) provision of better advisory services to government policy am regulatory agencies.…”
Enlace del recurso

Efficiency of Gryon fulviventris (Hymenoptera: Scelionidae) as an egg parasitoid of Clavigralla tomentosicollis Stal. (Hemiptera: Coreidae) in northern Nigeria por Asante, Stephen K., Jackai, L.E.N., Tamo, Manuele

“…These findings are discussed in relation to the potential contribution of biological control in the integrated pest management of this economically important pest.…”
Enlace del recurso

Rhizospheric actinomycetes from organic crops of native potato (Solanum tuberosum): isolation, phenotypic characterization, molecular identification, and impact on biocontrol of Ph... por Chumpitaz Bermejo, Astrid, Caro Castro, Junior, Cruz Hilacondo, Wilbert Eddy, León Quispe, Jorge

“…It is concluded that the rhizospheric actinomycetes of potato are producers of bioactive compounds capable of remarkably inhibiting the pathogen Phytophthora infestans, being able to be considered candidates in biological control programs of the "potato blight".…”
Enlace del recurso
Enlace del recurso

Use of a microbial nexus system in high andean areas: effectiveness and feasibility for wastewater treatment por Hualpa Cutipa, Edwin, Solórzano Acosta, Richard Andi, Alfaro Cancino, Milagros Estefani, Luis Alaya, Bernabe

“…A specific microbial community is used to degrade pollutants at each stage of biological wastewater treatment. To ensure the efficiency and effectiveness of the treatment process, the coupling of microbial niches in wastewater treatment is essential. …”
Enlace del recurso
Enlace del recurso

Phenotypic diversity of morphological traits of pitahaya (Hylocereus spp.) and its agronomic potential in the Amazonas region, Peru por Santos Pelaez, Julio Cesar, Saravia Navarro, David, Cruz Delgado, Julio H. I., Del Carpio Salas, Miguel Angel, Barboza, Elgar, Casanova Núñez Melgar, David Pavel

“…Pitahaya (Hylocereus spp.) is an economically significant cactus fruit in Peru, renowned for its rich nutritional profile and antioxidant properties while exhibiting wide biological diversity. This study aimed to morphologically characterize seven pitahaya accessions using qualitative and quantitative descriptors related to the cladodes, flowers, and fruits. …”
Enlace del recurso
Enlace del recurso

Effects of Glomus iranicum inoculation on growth and nutrient uptake in potatoes associated with broad beans under greenhouse conditions por Contreras Pino, Douglas Lenin, Pizarro Carcausto, Samuel Edwin, Verastequi Martínez, Patricia, Solórzano Acosta, Richard Andi, Requena Rojas, Edilson Jimmy

“…These findings suggest that G. iranicum could be a helpful biological tool in Andean crops to improve the productivity of potatoes associated with broad beans. …”
Enlace del recurso
Enlace del recurso

Development and evaluation of a species-specific PCR assay for the detection of Brucella ovis infection in rams por Xavier, Mariana N., Silva, Teane M.A., Costa, Erica A., Paixao, Tatiane A., Moustacas, Valeria S., Carvalho Junior, Custodio A., Sant’Anna, Felipe M., Robles, Carlos Alejandro, Gouveia, Aurora M.G., Lage, Andrey P., Tsolis, Renee M., Santos, Renato L.

“…Sensitivity and specificity values obtained with this PCR method were similar to that of bacteriology when evaluating biological samples. Agreement between PCR and bacteriology results was greater than 90%. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

Effect of continuous agriculture of grassland soils of the Argentine Rolling Pampa on soil organic carbon and nitrogen por Milesi Delaye, Luis Antonio, Irizar, Alicia Beatriz, Andriulo, Adrian Enrique, Mary, Bruno

“…The decrease in SOC and SON storage that occurred during the first twenty years by a loss through biological activity was 27% for SOC and 32% for SON. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

Implications of the Niche Partitioning and Coexistence of Two Resident Parasitoids for Drosophila suzukii Management in Non-Crop Areas por Buonocore Biancheri, María Josefina, Núñez-Campero, Segundo Ricardo, Suárez, Lorena del Carmen, Ponssa, Marcos Darío, Kirschbaum, Daniel Santiago, Garcia, Flávio Roberto Mello, Ovruski Alderete, Sergio Marcelo

“…Understanding the mechanisms associated with the coexistence of competing parasitoid species is critical in approaching any biological control strategy against the globally invasive pest spotted-wing drosophila (=SWD), Drosophila suzukii (Matsumura). …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

Gustatory responsiveness in Vespula germanica workers: exploring the interplay between sensory perception and task specialization por Mattiacci, Analia, Mengoni Goñalons, Carolina, Masciocchi, Maite, Corley, Juan Carlos

“…It has been proposed that the division of labor relies on response threshold models: individuals varying their sensitivity (and responsiveness) to biologically relevant stimuli and performing a specific task when a stimulus exceeds an internal threshold. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso