Resultados de búsqueda - Repsol~

  1. Evaluation of ultrasonic parameters as a non-invasive, rapid and in-field indicator of water stress in Citrus plants por Farinas, María Dolores, Martínez-Gimeno, María A., Badal, Eduardo, Tasa, María, Bonet, Luis, Manzano-Juárez, Juan

    Publicado 2021
    “…Non-Contact Resonant Ultrasound Spectroscopy (NC-RUS) has emerged as a powerful tool to determine plant water status in a non-destructive, non-invasive and rapid way. …”
    Enlace del recurso
    Enlace del recurso
    Artículo
  2. Sex ratios in field populations of Epidinocarsis lopezi, an exotic parasitoid of the cassava mealybug, in Africa por Dijken, M.J. van, Neuenschwander, Peter, Alphen, J.J.M. van, Hammond, W.N.O.

    Publicado 1991
    “…Thus, sex ratio increases with host density for three reasons: the proportion of small hosts encountered in the field increases with increasing host density, small hosts are used for male production, and hosts are always accepted when encountered.…”
    Enlace del recurso
    Journal Article
  3. Effect of soil moisture and organic matter levels on plantain root reaction to Radopholus similis por Rotimi, M., Speijer, P., Waele, D. de

    Publicado 2004
    “…This indicates that limiting food availability could have been resposible for the nematode population decrease. Highest root weight was obtained in a medium that supported low densities of R. similis, suggesting that low nematode pressure could enhance root growth of Agbagba.…”
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    Journal Article
  4. Development of Sustainable Business Models for Innovation in the Swedish Agri-sector: Resource-Effective Producer or Stewardship-Based Entrepreneur? por Ulvenblad, P.O.

    Publicado 2021
    “…This is important for several reasons. Many of society’s challenges are linked to social, environmental and economic aspects of agriculture, and numerous agri-companies have been reduced to subcontractors with little influence, and are struggling with low profitability.Previous research regarding agri-companies have mainly focused on production and cost-efficiency aspects. …”
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    Capítulo de libro
  5. Raising the profile of woodfuels in the forest landscape restoration agenda por Harvey, C.A., Guariguata, Manuel R.

    Publicado 2021
    “…In many regions, woodfuels (firewood and charcoal) are the main energy source for households and play a pivotal role in local economies; yet they are also associated with environmental degradation and adverse health outcomes. Here we examine the reasons why it is important to raise the profile of woodfuels within the FLR agenda and highlight the enabling conditions needed to promote sustainable management of woodfuels. …”
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    Journal Article
  6. Opportunities for an African greenhouse gas observation system por Merbold, Lutz, Scholes, Robert J., Acosta, M., Beck, J., Bombelli, A., Fiedler, B., Grieco, E., Helmschrot, J., Hugo, W., Kasurinen, V., Kim, D.-G., Körtzinger, A., Leitner, Sonja, López Ballesteros, A., Ndisi, M., Nickless, A., Salmon, E., Saunders, M., Skjelvan, I., Vermeulen, A.T.

    Publicado 2021
    “…Simultaneously, greenhouse gas emissions are expected to rise due to ongoing land use change, industrialisation, and transport amongst other reasons with Africa becoming a major emitter of greenhouse gases globally. …”
    Enlace del recurso
    Journal Article
  7. Advances in the registration of farmers’ varieties: Four cases from the global South por Jonge, Bram de, López Noriega, Isabel, Otieno, Gloria Atieno, Cadima, Ximena, Terrazas, Franz, Hpommalath, Siviengkhek, Oudehoven, Frederik van, Shrestha, Santosh, Pudasaini, Niranjan, Shrestha, Deepa Singh, Gauchan, Devendra, Kasasa, Patrick, Bwerazuva, Tsungai, Mujaju, Claid, Manjengwa, Sipiwe

    Publicado 2021
    “…We conclude that farmers’ variety registration systems can generate benefits including faster and cheaper variety releases, improved farmer incomes, and a larger diversity of well-adapted varieties in the market—but some important issues are still to be resolved.…”
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    Journal Article
  8. Transforming food systems through inclusive agribusiness por Schoneveld, G.C.

    Publicado 2022
    “…As businesses that productively integrate small farmers into commercial agrifood chains, IABs could help resolve some of the coordination and market and input access problems confronting many rural economies. …”
    Enlace del recurso
    Journal Article
  9. Food crops commercialization and household livelihoods: Evidence from rural regions in Central Africa por Ochieng, J., Knerr, B., Owuor, G., Ouma, Emily A.

    Publicado 2020
    “…We evaluate the impact of commercialization of these crops on‐farm income and the dietary diversity of rural households in Rwanda and the Democratic Republic of Congo. We employ three methods: propensity score matching, endogenous switching regression, and IPTW on cross‐sectional data. …”
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    Journal Article
  10. Has global deforestation accelerated due to the COVID-19 pandemic? por Céspedes, Jonnathan, Sylvester, Janelle Marie, Pérez Marulanda, Lisset, Paz Garcia, Paula, Reymondin, Louis, Khodadadi, Mehran, Tello Dagua, Jhon Jairo, Castro-Nuñez, Augusto Carlos

    Publicado 2023
    “…Time series analyses were conducted at the regional level for the Americas, Africa and Asia and at the country level for Brazil, Colombia, Peru, the Democratic Republic of Congo and Indonesia. Our results suggest that the pandemic did not alter the course of deforestation trends in some countries (e.g., Brazil, Indonesia), while it did in others (e.g., Peru). …”
    Enlace del recurso
    Journal Article
  11. Climate Governance and Decentralization in Indonesia por Gregorio, M. di, Moeliono, M.

    Publicado 2023
    “…Indonesia represents an interesting case for analysis of the relationship between multi-level governance and climate governance for three main reasons. It is a highly decentralized country; it is a major contributor to land-based greenhouse gas emissions; and it is extremely vulnerable to climate change. …”
    Enlace del recurso
    Capítulo de libro
  12. Unlocking Total factor productivity of smallholder dairy farmers in Tanzania por Lyatuu, Eliamoni T.R., Komwihangilo, Daniel M., Msuta, G., Kelya, Neema, Okeyo Mwai, Ally, Ojango, Julie M.K., Gebreyohanes, Gebregziabher

    Publicado 2023
    “…However, the productivity per cow is still very low due various reasons. This study used data from African Asian Dairy Genetic Gains (AADGG) database collected over a period of 2016 to 2023 in combination with mini survey of cost of production done in twenty-four (24) Local Government Authorities (LGAs) to determines factors that influence total factor productivity in the small-scale dairy farm in selected district in Tanzania. …”
    Enlace del recurso
    Conference Paper
  13. Accelerating and scaling up Africa’s climate change adaptation and mitigation actions: Experiences and lessons learned por Majaliwa, Mwanjololo J.G., Nakayiwa, Florence, Waswa, Moses, Ekepu, David

    Publicado 2023
    “…The side event was attended by 42 people, including 8 women, from Ouganda, Kenya, Zambia, Zimbabwe, Malawi, Ghana, Ivory Coast, Ethiopia, Cameroon, Democratic Republic of Congo, Benin, Mali, Malawi, Senegal, USA, and Rwanda.…”
    Enlace del recurso
    Informe técnico

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