News from the CIMMYT library Chapter 2. Brief overview of maize lethal necrosis and the molecular basis of variability in concentrations of the causal viruses in co-infected maize plant Maize lethal necrosis (MLN) disease is new to Africa, first report was in Kenya in 2012, since then the disease has rapidly spread to most parts of ea Awata, L.A.O. Introgression of maize lethal necrosis resistance quantitative trait loci into susceptible maize populations and validation of the resistance under field conditions in Naivasha, Kenya Maize lethal necrosis (MLN), resulting from co-infection by maize chlorotic mottle virus (MCMV) and sugarcane mosaic virus (SCMV) can cause up to 100% Awata, L.A.O. First Report of Rhizoctonia solani AG2-1 on roots of wheat in Kazakhstan Fusarium crown rot, caused by several species within the genus, is a major constraint that results in significant losses in wheat production worldwide ?zer, G. Host suitability of different common bean varieties in a growth room to the plant-parasitic nematodes Pratylenchus thornei and P. neglectus Pratylenchus thornei and P. neglectus attack common bean and cause economic yield losses throughout cultivated areas in Turkey. The most effective man Saleh, A. First report of crown rot caused by Fusarium redolens on wheat in Kazakhstan Fusarium crown rot, caused by several species within the genus, is a major constraint that results in significant losses in wheat production worldwide Bozoglu, T. First report of Fusarium culmorum and Microdochium bolleyi causing root rot on Triticale in Kazakhstan Triticale (?Triticosecale Wittmack) is obtained from wheat ? rye crossing. It is positioned between wheat and rye in terms of resistance to soilborne Alkan, M. Efficacy assessment of entomopathogenic nematodes native to Morocco against the white grubs Rhizotrogus obesus Lucas and Geotrogus olcesii Fairmaire (Coleoptera: Scarabaeidae) The white grubs Rhizotrogus obesus Lucas and Geotrogus olcesii Fairmaire (Coleoptera: Scarabaeidae) are two of the most problematic soil-dwelling pest Benseddik, Y. Effects of temperature and duration of storage on the hatching behaviour of Heterodera latipons (Nematoda: Heteroderidae) Mediterranean cereal cyst nematode (CCN) Heterodera latipons is considered as one of the main CCN that causes significant economic losses in the produ Yigit Ali Tatli Phenotypic and genotypic characterization of wheat and barley varieties for resistance to cereal cyst nematode (Heterodera latipons) The cereal cyst nematodes (CCN) severely threaten wheat production in many cereal-growing areas around the world as well as in Turkey. The screening o Imren, M. A GWAS to identify the cereal cyst nematode (Heterodera filipjevi) resistance loci in diverse wheat prebreeding lines Yield losses because of cereal cyst nematodes could be as high as 92%, causing a bottleneck for wheat production. An integrated approach (application Dababat, A.A. Field resistance to wheat stem rust in durum wheat accessions deposited at the USDA National Small Grains Collection Wheat stem rust, caused by Puccinia graminis f. sp. tritici, is a re-emerging disease, posing a significant threat to durum wheat production worldwide Olivera Firpo, P.D. Novel Iranian wheat cultivars resistant to Bipolaris sorokiniana Wheat, Triticum aestivum, is one of the most important and strategic crops in human diet threatened by several diseases. Common root rot disease of wh Gholamaliyan, A. Improved nutrient management in cereals using Nutrient Expert and machine learning tools : productivity, profitability and nutrient use efficiency CONTEXT: Smallholder farmers of the Eastern Indo-Gangetic Plains (EIGP) of South Asia rely mainly on cereal-based cropping systems to meet the food an Timsina, J. Coupling landscape-scale diagnostics surveys, on-farm experiments, and simulation to identify entry points for sustainably closing rice yield gaps in Nepal CONTEXT: Rice is the primary staple food crop in Nepal, contributing 20% of the agricultural gross domestic product and more than 50% of the total cal Devkota, K.P. Female reproductive organs of Brassica napus are more sensitive than male to transient heat stress Oilseed rape (Brassica napus L.) is sensitive to heat stress during the reproductive stage, but it is not clear whether the male and female reproducti Sheng Chen Molecular mapping of all stage stripe rust resistance gene YrPak in wheat landrace PI388231 Stripe (yellow) rust caused by Puccinia striiformis f. sp. tritici (Pst) is a major disease in many wheat growing regions. The objective of this study Tariq, M. Rapid appraisal using landscape sustainability indicators for Yaqui Valley, Mexico An approach for rapid appraisal of agricultural landscapes was developed and applied to the Yaqui Valley, Mexico, in order to assess progress toward s Eichler Inwood, S.E. Genome-wide association mapping identifies yellow rust resistance loci in Ethiopian durum wheat germplasm Durum wheat is an important cereal grown in Ethiopia, a country which is also its center for genetic diversity. Yellow (stripe) rust caused by Puccini Alemu, S.K. First report of blast of durum wheat in Bangladesh, caused by Magnaporthe oryzae pathotype Triticum Durum wheat (Triticum turgidum var. durum Desf.) is an important cereal crop in many regions of the world. In March of 2018 and 2019, symptoms typical Roy, K.K. Overcoming constraints of scaling : critical and empirical perspectives on agricultural innovation scaling Scaling is a ubiquitous concept in agricultural research in the global south as donors require their research grantees to prove that their results can Gebreyes, M. SNP-based genetic diversity among few-branched-1 (Fbr1) maize lines and its relationship with heterosis, combining ability and grain yield of testcross hybrids Single nucleotide polymorphism (SNP) markers are regarded as efficient, compared to other marker types in genetic characterization of maize (Zea mays Shorai Dari Intense precipitation events during the monsoon season in Bangladesh as captured by satellite-based products Extreme precipitation events are a serious threat to societal well-being over rainy areas such as Bangladesh. The reliability of studies of extreme ev Montes, C. Identification of genetic loci and candidate genes related to grain zinc and iron concentration using a zinc-enriched wheat ?Zinc-Shakti? The development of nutritionally enhanced wheat (Triticum aestivum L.) with higher levels of grain iron (Fe) and zinc (Zn) offers a sustainable soluti Rathan, N.D. Expanding the possibilities for a future free of hunger In attempting a rapprochement between food security and food sovereignty, it is important to understand their full historical contexts. It is also imp Murphy, S. Estimating the benefits of plant breeding research : methodological issues and practical challenges Impact assessment studies consistently show that the benefits generated by plant breeding are large, positive and widely distributed. Numerous case st Morris, M.L. Use of wheat genetic resources to develop biofortified wheat with enhanced grain zinc and iron concentrations and desirable processing quality As a major cereal crop worldwide, wheat contributes on average one-fifth of the calories in the human diet and is the main source of protein and nutri Guzman, C. Calibration and validation of APSIM?Maize, DSSAT CERES?Maize and AquaCrop models for Ethiopian tropical environments Process-based crop models are popular tools to quantify the impact of changes due to climate or crop management. Accurate simulation of crop productio Feleke, H.G. Conservation agriculture-based sustainable intensification of cereal systems for enhancing pulse production and attaining higher resource-use efficiency in India Indian agriculture have made strides and with advancements in science and development, it has witnessed several revolutions ranging green, white, blue Jat, M.L. No-till lentil : an option for profitable harvest in dry areas No-till lentil holds promise for minimizing soil and crop residue disturbance, controlling soil evaporation, minimizing erosion losses, sequestering c Kumar, S. Production technology for direct seeded rice Chauhan, B.S.