نتایج جستجو برای: grain security

تعداد نتایج: 239212  

2017
Yi Zhang Yanxia Zhao

The use of modern crop varieties is a dominant method of obtaining high yields in crop production. Efforts to identify suitable varieties, with characteristics that would increase crop yield under future climate conditions, remain essential to developing sustainable agriculture and food security. This work aims to evaluate potential genotypic adaptations (i.e., using varieties with increased ab...

Journal: :Wirtschaftsdienst 2023

Abstract Supply chain disruptions related to the Ukraine war have led a decline in wheat exports from Russia and African countries, which has been largely offset by an increase other countries. However, fears that grain supply will be exacerbated Russia’s use of as weapon expansion economic financial sanctions Western well threat termination Black Sea Grain Initiative, greatly increased risks g...

Journal: :Remote Sensing 2017
Diego Cerrudo Lorena González Pérez José Alberto Mendoza Lugo Samuel Trachsel

The objective of this study was to assess the importance of stay-green on grain yield under heat and combined heat and drought stress and to identify the associated vegetative indices allowing higher throughput in order to facilitate the identification of climate resilient germplasm. Hybrids of tropical and subtropical adaptation were evaluated under heat and combined heat and drought stress in...

Journal: :Land 2022

As a powerful actor in the global food system, China experienced significant drop crop production from 1998 to 2003, which posed substantial threat national security and led establishment of 13 major grain-producing areas (MGPA). Although some qualitative research has found that MGPA policy plays an important role ensuring security, quantitative evidence on effect its potential mechanism remain...

2016
Gabriel T. LaHue Rufus L. Chaney Maria Arlene Adviento-Borbe Bruce A. Linquist

Rice (Oryza sativa L.) cultivation is critically important for global food security, yet it also represents a significant fraction of agricultural greenhouse gas (GHG) emissions and water resource use. Alternate wetting and drying (AWD) of rice fields has been shown to reduce both methane (CH4) emissions and water use, but its effect on grain yield is variable. In this three-year study we measu...

2015
Pierre Stratonovitch Mikhail A. Semenov

To deliver food security for the 9 billon population in 2050, a 70% increase in world food supply will be required. Projected climatic and environmental changes emphasize the need for breeding strategies that delivers both a substantial increase in yield potential and resilience to extreme weather events such as heat waves, late frost, and drought. Heat stress around sensitive stages of wheat d...

2010
Fatiha Benali Nadia Bennani Gabriele Gianini Stelvio Cimato

Organizations security becomes increasingly more difficult to obtain due to the fact that information technology and networking resources are dispersed across organizations. Network intrusion attacks are more and more difficult to detect even if the most sophisticated security tools are used. To address this problem, researchers and vendors have proposed alert correlation, an analysis process t...

Journal: :International Journal of u- and e- Service, Science and Technology 2016

Journal: :Electr. Notes Theor. Comput. Sci. 2001
Gian Luigi Ferrari Eugenio Moggi Rosario Pugliese

MetaKlaim is a case study in modeling the spatial, temporal and security aspects necessary for global computing. MetaKlaim integrates MetaML (an extension of SML for multi-stage programming) and Klaim (a Kernel Language for Agents Interaction and Mobility), in order to allow interleaving of meta-programming activities (like assembly and linking of code fragments), security checks (like typechec...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید