Now showing items 7059-7078 of 8716

    • Root traits for sustainable low-input agro-ecosystems 

      Henry, A. (2008)
      Soil stress is a key constraint to global food production, and selection for root traits is a promising strategy for improving sustainability of low input agro-ecosystems. In this thesis, the use of root traits for improving ...
    • A Rootstock Provides Water Conservation for a Grafted Commercial Tomato (Solanum lycopersicum L.) Line in Response to Mild-Drought Conditions: A Focus on Vegetative Growth and Photosynthetic Parameters 

      Nilsen, Erik T.; Freeman, Joshua; Grene, Ruth; Tokuhisa, James (Public Library of Science, 2014-12-22)
      The development of water stress resistant lines of commercial tomato by breeding or genetic engineering is possible, but will take considerable time before commercial varieties are available for production. However, grafting ...
    • Rose of Sharon, Shrub Althea 

      Niemiera, Alexander X. (Virginia Cooperative Extension, 2009-05-01)
      This publication covers the physical and main features, plant needs, functions, care, and additional information for Rose of Sharon, Shrub Althea.
    • Rose-of-Sharon, Shrub Althea (Hibiscus syriacus) 

      Niemiera, Alexander X. (Virginia Cooperative Extension, 2018-10-17)
      Provides information about the physical characteristics, growth requirements, and landscape functions for Rose-of-Sharon, Hibiscus syriacus.
    • Rotary Mowers Safety: Lawncare Training Guide Rotary mower maintenance and safe use 

      Grisso, Robert D. (Robert Dwight), 1956-; Perumpral, John V.; Ohanehi, Donatus Chukwubueze, 1949-; Goatley, Michael; Jamison, Kathleen; Sutphin, Cathy; Swafford, Dan; Estes, Carl (Virginia Cooperative Extension, 2012-09-10)
      Rotary lawn mower maintenance and safe use.
    • Rotational grazing for soil carbon sequestration 

      SANREM CRSP (Blacksburg, VA: SANREM CRSP, OIRED, Virginia Tech, 2007)
      Soil carbon sequestration has the potential to provide significant economic and environmental benefits to communities in semi-arid regions around the world. Increased levels of carbon enhance soil fertility and water ...
    • Rôle des eleveurs dans la gestion des ressources naturelles 

      Arzika, S.; Nomaou, A. (Republique du Senegal Ministere de L'environment et de la Protection de la Nature (Project de Gestion Communautaire des Ressources Naturelles USAID NO. 685-0305), 1998)
      L'étude des données existantes et les constations faites sur le terrain font apparaître des résultats contratés en matière de pression du bétail sur les ressources naturelles suivant les régions.
    • RTB and the rural transformation 

      Alwang, Jeffrey R. (2017-05-24)
      Presentation to working group on assessment of impact for the Roots, Tubers, and Bananas Consortium Research Program
    • Ruminal volatile fatty acid absorption is affected by elevated ambient temperature 

      Bedford, Andrea; Beckett, Linda; Harthan, Laura; Wang, Chong; Jiang, Ning; Schramm, Hollie; Guan, Le Luo; Daniels, Kristy M.; Hanigan, Mark D.; White, Robin R. (2020-08-04)
      The objective of this study was to investigate the effect of short-term elevated ambient temperature on ruminal volatile fatty acid (VFA) dynamics and rumen epithelium gene expression associated with the transport and ...
    • Running effective meetings 

      Kaufman, Eric (2018-06-01)
      First Fridays is an interactive professional development program that covers various topics from all Extension program areas. Extension agents, specialists, staff and guest speakers share their expertise to enhance Extension ...
    • RUPES Bakun site profile 

      The World Agroforestry Centre (ICRAF) (2007-06-21)
      One of the activities that the Bakun people have been involved in, as part of the partnership with IFAD, has been reforestation and agroforestry projects that increase their livelihood opportunities and to protect their ...
    • RUPES Bungo illustrated diagram 

      The World Agroforestry Centre (ICRAF) (2007-06-25)
      "The Bungo district in the Batang Hari watershed located in Jambi is the third largest rubber-producing province in Indonesia. The 'jungle rubber' agroforests in this area are becoming increasingly important as a reservoir ...
    • RUPES Bungo site profile 

      The World Agroforestry Centre (ICRAF) (2007-06-25)
      "The Bungo district in the Batang Hari watershed located in Jambi is the third largest rubber-producing province in Indonesia. The 'jungle rubber' agroforests in this area are becoming increasingly important as a reservoir ...
    • RUPES Kalahan site profile 

      The World Agroforestry Centre (ICRAF) (2007-06-21)
      The Ikalahan Ancestral Domain covers 58,000 ha of mountainous forest and farmlands and provides water for the cities and irrigation systems below. There are many endangered bird species present which need protection. RUPES ...
    • RUPES Kulekhani site profile 

      The World Agroforestry Centre (ICRAF) (2007-06-21)
    • RUPES Singkarak illustrated diagram 

      The World Agroforestry Centre (ICRAF) (2007-06-25)
      Intensive upland agriculture and fishing are the major income producers for those individuals living around Singkarak Lake. Poor agricultural management, over fishing, and hydroelectric draw downs are negatively impacting ...
    • RUPES Singkarak site profile 

      The World Agroforestry Centre (ICRAF) (2007-06-25)
      Intensive upland agriculture and fishing are the major income producers for those individuals living around Singkarak Lake. Poor agricultural management, over fishing, and hydroelectric draw downs are negatively impacting ...
    • RUPES Sumberjaya illustrated diagram 

      The World Agroforestry Centre (ICRAF) (2007-06-25)
      The RUPES project in the Sumberjaya sub-district of Indonesia addresses both the degradation of the downstream water supply (from soil sedimentation and contamination) and the land conflict between the untitled farmers and ...
    • RUPES Sumberjaya site profile 

      The World Agroforestry Centre (ICRAF) (2007-06-25)
      The RUPES project in the Sumberjaya sub-district of Indonesia addresses both the degradation of the downstream water supply (from soil sedimentation and contamination) and the land conflict between the untitled farmers and ...
    • RUPES typology of environmental service worthy of reward 

      van Noordwijk, M. (Bogor, Indonesia: World Agroforestry Centre (ICRAF), 2005)
      The development of transparent and sustainable reward mechanisms for environmental services provided by upland farmers to downstream communities requires clarity on the relationship between land use and the type of ...