News from the CIMMYT library Identification of a conserved ph1b-mediated 5DS?5BS crossing over site in soft-kernel durum wheat (Triticum turgidum subsp. durum) lines Genetic recombination is the major mechanism and basis of genetic diversity and crop improvement. Recombination typically occurs between homologous ch Ibba, M.I. Nitrogen fertilizer rate increases plant uptake and soil availability of essential nutrients in continuous maize production in Kenya and Zimbabwe Low fertilizer application rates for several decades have depleted soil nutrients in Sub-Saharan Africa (SSA) and contributed to relatively stagnant m Pasley, H.R. Operationalizing the concept of robustness of nitrogen networks in mixed smallholder systems : a pilot study in the mid-hills and lowlands of Nepal Nitrogen (N) is often the most limiting nutrient to productivity in smallholder mixed crop-livestock systems such as commonly found in the mid-hills a Alomia-Hinojosa, V. Carbon sequestration potential through conservation agriculture in Africa has been largely overestimated : comment on: ?Meta-analysis on carbon sequestration through conservation agriculture in Africa? [No abstract available] CORBEELS, M. Rapid identification and characterization of genetic loci for defective kernel in bread wheat Background: Wheat is a momentous crop and feeds billions of people in the world. The improvement of wheat yield is very important to ensure world food Chao Fu SIMLESA soil manual: simple protocols and resources for rapid field soil testing in Africa Roxburgh, C.W. Characterization of QTLs for seedling resistance to tan spot and septoria nodorum blotch in the PBW343/Kenya Nyangumi wheat recombinant inbred lines population Tan spot (TS) and Septoria nodorum blotch (SNB) induced by Pyrenophora tritici-repentis and Parastagonospora nodorum, respectively, cause significant Singh, P.K. Combined study on genetic diversity of wheat genotypes using SNP marker and phenotypic reaction to Heterodera filipjevi Wheat is the most important host for cereal cyst nematode, Heterodera filipjevi. The wild relatives of wheat have important sources of resistance gene Majd Taheri, Z. Effect of manures and fertilizers on soil physical properties, build-up of macro and micronutrients and uptake in soil under different cropping systems : a review Combined application of manures and fertilizers played a pivotal role in the improvement in soil physico-chemical properties, macro and micronutrients Dhaliwal, S.S. Agricultural productivity and soil carbon dynamics: a bioeconomic model We examine the dynamic management of a soil resource-the issue at the core of both environmental and development challenges in developing countries. O Berazneva, J. Adoption of agricultural tehcnologies in Kenya: how does gender matter? This paper uses plot level data to investigate the agricultural technologies adoption across male and female plots managers in Kenya with particular a Ndiritu, S.W. Effects of tillage and crop establishment methods on the system productivity and profitability of rice-maize system in Bangladesh Gathala, M.K. Factor analysis to investigate genotype and genotype ? environment interaction effects on pro-vitamin A content and yield in maize synthetics Vitamin A Deficiency (VAD) is a major public health problem in Sub-Saharan Africa affecting 33 million preschool-age children. Enrichment of maize var Mengesha, W. Balanced nutrient requirements for maize in the Northern Nigerian Savanna : parameterization and validation of QUEFTS model Establishing balanced nutrient requirements for maize (Zea mays L.) in the Northern Nigerian Savanna is paramount to develop site-specific fertilizer Shehu, B.M. Field-specific nutrient management using Rice Crop Manager decision support tool in Odisha, India The requirement of rice (Oryza sativa L.) for fertilizer can depend on crop and soil management practices, which can vary among fields within a rice-g Sharma, S. Affordability linked with subsidy : impact of fertilizers subsidy on household welfare in Pakistan Historically, the government of Pakistan has been providing subsidy on fertilizers, and the most recent subsidy program started during 2015-2016. The Ali, A. Multi-level socioecological drivers of agrarian change : longitudinal evidence from mixed rice-livestock-aquaculture farming systems of Bangladesh Coastal systems are facing natural and human-driven change coupled with a rising population. With increasing shifts in socioecological conditions duri Aravindakshan, S. Simulation-based maize?wheat cropping system optimization in the midhills of Nepal Rainfed maize (Zea mays L.)?wheat (Triticum aestivum L.) production in the midhill region of Nepal is limited in the winter season by cool temperature Laborde, J.P. Compost amended with N enhances maize productivity and soil properties in semi-arid agriculture Declining soil fertility and crop yields are common in arid and semi?arid areas. Sustainable technologies that halt or reverse this trend are required Shahid Iqbal Guidelines for dry seeded aman rice (DSR) in Bangladesh Gathala, M.K. Mapping of genetic loci conferring resistance to leaf rust from three globally resistant durum wheat sources Genetic resistance in the host plant is the most economical and environmentally friendly strategy for controlling wheat leaf rust, caused by Puccinia Kthiri, D. Tillage and residue-management effects on productivity, profitability and soil properties in a rice-maize-mungbean system in the Eastern Gangetic Plains Farmers? conventional tillage (CT) and residue removal practices in rice (Oryza sativa L.)-maize (Zea mays L.) systems in South Asia?s Eastern Gangeti Rashid, M.H. Performance of maize hybrid under conventional and strip-tillage systems in three districts of Bangladesh Saiful Islam First Report of TTRTF race of wheat stem rust, Puccinia graminis f. sp. tritici, in Ethiopia Stem rust caused by Puccinia graminis Pers.:Pers. f. sp. tritici Erikss. & E. Henn. is an important disease of bread (Triticum aestivum L.) and du Tesfaye, T. An application of artificial neural network classifier to analyze the behavioral traits of smallholder farmers in Kenya This paper develops and employs a novel artificial neural network (ANN) model to study farmers? behavior towards decision making on maize production i Jena, P.R. Can Bangladesh produce enough cereals to meet future demand? Bangladesh faces huge challenges in achieving food security due to its high population, diet changes, and limited room for expanding cropland and crop Timsina, J. Wheat genetic diversity in China : measurement and cost Much of the existing economic research on the conservation of biological diversity focuses on the costs and benefits of preventing the extinction of s Meng, E.C.H. Identification of superior doubled haploid maize (Zea mays) inbred lines derived from high oil content subtropical populations High oil maize (HOM) hybrids, adapted to subtropical regions are needed to meet existing requirements for industrial and livestock purposes. Recently, Silva-Venancio, S. Genomic prediction and genome-wide association studies of flour yield and alveograph quality traits using advanced winter wheat breeding material Use of genetic markers and genomic prediction might improve genetic gain for quality traits in wheat breeding programs. Here, flour yield and Alveogra Kristensen, P.S. Validation of candidate gene-based markers and identification of novel loci for thousand-grain weight in spring bread wheat Increased thousand-grain weight (TGW) is an important breeding target for indirectly improving grain yield (GY). Fourteen reported candidate genes kno Sehgal, D.