Resultados de búsqueda - "A"

  1. Yield stability of selected rice breeding lines and donors across conditions of mild to moderately severe drought stress por Torres, Rolando O., Henry, Amelia

    Publicado 2018
    “…Using an AMMI1 biplot analysis, IR83142-B-7-B-B, Binuhangin, IR77298-14-1-2-13, IR70215-70-CPA-3-4-1-3 and IR77298-14-1-2 were identified as the genotypes with the highest and most stable grain yields in both well-watered and mild to moderately severe drought stress environments. In a characterization of traits conferring drought tolerance among the highest yielding genotypes under mild to moderate drought stress, genotypes Binuhangin and IR70215-70-CPA-3-4-1-3 stood out for multiple physiological traits under drought. …”
    Enlace del recurso
    Journal Article
  2. Harnessing the hidden genetic diversity for improving multiple abiotic stress tolerance in rice (Oryza sativa L.) por Ali, Jauhar, Xu, Jianlong, Gao, Yong-Ming, Ma, Xiu-Fang, Meng, Lijun, Wang, Ying, Pang, Yunlong, Guan, Yong-Sheng, Xu, Mei-Rong, Revilleza, Jastin E., Franje, Neil J., Zhou, Shao-Chuan, Li, Zhikang

    Publicado 2017
    “…Using eight BC1 populations derived from a widely adaptable recipient and eight donors plus three rounds of phenotypic selection, we developed 496 introgression lines (ILs) with significantly higher yield under drought, salt and/or non-stress conditions in 5 years. …”
    Enlace del recurso
    Journal Article
  3. Threelobe morningglory (Ipomoea triloba) germination and response to herbicides por Chauhan, Bhagirath Singh, Abugho, Seth Bernard

    Publicado 2012
    “…No seedlings emerged from a burial depth of 6 cm or greater. Residues of up to 6 Mg ha−1on the soil surface did not influence seedling emergence of threelobe morningglory. …”
    Enlace del recurso
    Journal Article
  4. Genetic and physiological analysis of tolerance to acute iron toxicity in rice por Wu, Lin-Bo, Shhadi, Mohamad Yusser, Gregorio, Glenn, Matthus, Elsa, Becker, Mathias, Frei, Michael

    Publicado 2014
    “…In line FL483, the iron tolerance was related mainly to shoot-based mechanisms (tolerant inclusion mechanism). In a Nipponbare/Kasalath/Nipponbare backcross inbred population, 3 QTLs were mapped on chromosomes 1, 3 and 8, respectively. …”
    Enlace del recurso
    Journal Article
  5. Comparative transcriptome profiling reveals different expression patterns in Xanthomonas oryzae pv. oryzae strains with putative virulence-relevant genes por Zhang, Fan, Du, Zhenglin, Huang, Liyu, Vera Cruz, Casiana, Zhou, Yongli, Li, Zhikang

    Publicado 2013
    “…Xanthomonas oryzae pv. oryzae (Xoo) is the causal agent of rice bacterial blight, which is a major rice disease in tropical Asian countries. …”
    Enlace del recurso
    Journal Article
  6. Potassium management in rice-maize systems in South Asia por Timsina, Jagadish, Kumar Singh, Vinod, Majumdar, Kaushik

    Publicado 2013
    “…Potassium responses of maize are extremely high and variable for soils in Bangladesh. Finally, a plant‐based strategy for field‐specific nutrient management is presented and the need for models and decision support systems for developing efficient K management of the R‐M system is also discussed.…”
    Enlace del recurso
    Journal Article
  7. Potassium fertilization in rice-wheat system across Northern India: crop performance and soil nutrients por Singh, Vinod K., Dwivedi, Brahma S., Buresh, Roland J., Jat, M.L., Majumdar, Kaushik, Gangwar, Babooji, Govil, Vidhi, Singh, Susheel K.

    Publicado 2013
    “…Approaches are needed to reliably predict fertilizer K requirements when crops respond relatively uniformly to K across a wide range in exchangeable K.…”
    Enlace del recurso
    Journal Article
  8. Soil carbon and nitrogen changes in long-term continuous lowland rice cropping por Pampolino, Mirasol F., Laureles, Eufrocino V., Gines, Hermenegildo C., Buresh, Roland J.

    Publicado 2008
    “…Soils were an Aquandic Epiaquoll, an Entic Pellustert, and a Typic Pelludert; soil pH ranged from 5.9 to 6.7. …”
    Enlace del recurso
    Journal Article
  9. Using leaf color charts to estimate leaf nitrogen status of rice por Yang, Woon-Ho, Peng, Shaobing, Huang, Jianliang, Sanico, Arnel L., Buresh, Roland J., Witt, Christian

    Publicado 2003
    “…Nitrogen content was determined by micro‐Kjeldahl procedure and expressed as Ndwand leaf area–based N content (Na). There was a linear relationship between LCC scores and Ndwat each growth stage (R2range of 0.25–0.97) and across growth stages (R2range of 0.46–0.62). …”
    Enlace del recurso
    Journal Article
  10. Phosphorus fertilizer effects on soil phosphorus pools in acid upland soils por Dobermann, Achim, George, Thomas, Thevs, Niels

    Publicado 2002
    “…Soil P pools were measured by Mehlich‐1 extractant, a modified Hedley fractionation and by mixed‐bed resin capsules after 1 and 14 d (resin adsorption quantity, RAQ‐P1 and RAQ‐P14). …”
    Enlace del recurso
    Journal Article
  11. Response of Rice to Solar Radiation and Temperature Estimated From International Yield Trials por Seshu, D.V., Cady, F.B.

    Publicado 1984
    “…Among the models evaluated, a prediction equation based on radiation (RAD) and minimum temperature (MINT) during the ripening stage of 30 days after flowering demonstrated predictive ability. …”
    Enlace del recurso
    Journal Article
  12. Loop Mediated Isothermal Amplification for rapid detection of Ralstonia solanacearum from potato stems and tubers. Validation report por Kungu, M., Wanjiku, J., Atieno, E., Nyongesa, F., Gachamba, S., Wachira, E., Ngundo, G., Sharma, K.

    Publicado 2024
    “…Loop-mediated Isothermal Amplification (LAMP) assays for detection of potato strain (sequevar 1) (LAMP I), Ralstonia solanacearum species complex (RSSC) strains (LAMP II) and Ralstonia solanacearum (Rs) phylotype I (LAMP III) have recently been developed. A study was conducted to validate real-time fluorescence detection of RSSC strains from soil, potato stem and tuber extracts using alkaline PEG extraction method employing LAMP I, LAMP II and LAMP III assays in laboratory for routine diagnostics. …”
    Enlace del recurso
    Informe técnico
  13. Do public works investments in watershed rehabilitation and small-scale irrigation improve nutrition and resilience? Evidence from bureau for humanitarian assistance interventions... por Balana, Bedru, Mekonnen, Dawit Kelemework, Arega, Tiruwork, Ringler, Claudia, Bryan, Elizabeth, Yami, Mastewal, Taffesse, Alemayehu Seyoum, Wondwosen, Abenezer

    Publicado 2024
    “…However, there is little evidence about how these water-related investments supported household food security, nutritional outcomes, and resilience. This study used a mixed-methods approach to fill some of these knowledge gaps. …”
    Enlace del recurso
    Artículo preliminar
  14. Use of fertilizers in agriculture sector of Tajikistan por Ashurov, Timur, Khakimov, Parviz, Aliev, Jovidon, Goibov, Manuchehr

    Publicado 2025
    “…Key challenges • Fertilizer application rates, particularly for both mineral and organic types, remain below the recommended norms set by the Ministry of Agriculture (MoA). Farmers across the country, especially smallholders, struggle to apply adequate amounts of fertilizers due to high costs and limited access. • Access to high-quality mineral fertilizers is further hindered by the country’s dependency on imports, which can exacerbate local price volatility. • Fertilizer use varies across different regions of Tajikistan. …”
    Enlace del recurso
    Brief
  15. Assessing progress on the coverage of interventions in the first 1000 days in India: Role of national programs por Avula, Rasmi, Nguyen, Phuong Hong, Christopher, Anita, Gune, Soyra, Bhatia, Neena, Chauhan, Alka, Dwivedi, L. K., Kapur, Avani, Pedgaonkar, Sarang, Shukla, Ritwik, Chakrabarti, Suman, Singh, Shri Kant, Menon, Purnima

    Publicado 2024
    “…We reviewed programme documents and grey literature to construct a policy timeline to trace pathways to coverage improvement and consulted with stakeholders to confirm interpretation of findings. …”
    Enlace del recurso
    Journal Article
  16. Pollen fertility assessments on selected diploid genotypes of musa species in the IITA breeding collection por Taiwo, T.O.

    Publicado 2023
    “…Breeding of all types of bananas including plantain is dependent on the development of superior diploids with disease and pest resistance and better quality to be used as male parents. There has been a major challenge over the years on the selection of diploid parents with desirable traits for plantain breeding. …”
    Enlace del recurso
    Tesis
  17. Reducing emissions from fertilizers: Opportunities and Challenges por CGIAR Climate Change Impact Platform

    Publicado 2024
    “…Combining nitrogen and green hydrogen with a renewable energy-driven N reduction reaction rather than the Haber-Bosch process can further reduce emissions. …”
    Enlace del recurso
    Informe técnico

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