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Wheat yield

John O Unuofin, Anthony I Okoh, Uchechukwu U Nwodo
Agroindustrial residual lignocellulosic biomaterial provides an economical and renewable natural bioresource for the large-scale, gainful biofuel production, as well as the production of fine bulk chemicals, which may include industrial biocatalysts. To this end, the laccase-inducing aptitude of some agroindustrial, lignocellulosic residues were appraised in submerged fermentation batch culture of two woodland betaproteobacteria (Hb9c; Achromobacter xylosoxidans HWN16, Hb16c; Bordetella bronchiseptica HSO16)...
October 17, 2018: Journal of Environmental Management
Philomin Juliana, Osval A Montesinos-López, José Crossa, Suchismita Mondal, Lorena González Pérez, Jesse Poland, Julio Huerta-Espino, Leonardo Crespo-Herrera, Velu Govindan, Susanne Dreisigacker, Sandesh Shrestha, Paulino Pérez-Rodríguez, Francisco Pinto Espinosa, Ravi P Singh
Genomic selection and high-throughput phenotyping (HTP) are promising tools to accelerate breeding gains for high-yielding and climate-resilient wheat varieties. Hence, our objective was to evaluate them for predicting grain yield (GY) in drought-stressed (DS) and late-sown heat-stressed (HS) environments of the International maize and wheat improvement center's elite yield trial nurseries. We observed that the average genomic prediction accuracies using fivefold cross-validations were 0.50 and 0.51 in the DS and HS environments, respectively...
October 19, 2018: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
Elena Bartkiene, Grazina Juodeikiene, Daiva Zadeike, Violeta Baliukoniene, Bronius Bakutis, Dalia Cizeikiene
No abstract text is available yet for this article.
October 18, 2018: Journal of the Science of Food and Agriculture
Eoin Byrne, Krisztina Kovacs, Ed W J van Niel, Karin Willquist, Sven-Erik Svensson, Emma Kreuger
Background: Current EU directives demand increased use of renewable fuels in the transportation sector but restrict governmental support for production of biofuels produced from crops. The use of intercropped lucerne and wheat may comply with the directives. In the current study, the combination of ensiled lucerne ( Medicago sativa L.) and wheat straw as substrate for hydrogen and methane production was investigated. Steam-pretreated and enzymatically hydrolysed wheat straw [WSH, 76% of total chemical oxygen demand (COD)] and ensiled lucerne (LH, 24% of total COD) were used for sequential hydrogen production through dark fermentation and methane production through anaerobic digestion and directly for anaerobic digestion...
2018: Biotechnology for Biofuels
Xiaopei Tang, Ni Song, Zhifang Chen, Jinglei Wang, Jianqiang He
The DSSAT model, integrated the calibrated Hargreaves ET model and dynamic crop coefficient, was run with the generated weather data by SDSM4.2 and CanESM2 to predict the potential yield and crop water requirement (ETC ) of winter wheat in the Huang-Huai-Hai Plain in China under RCP4.5 and RCP8.5 scenarios. The results showed that the spatial distribution of potential yield in the future under RCP4.5 and RCP8.5 were similar, characterized by an increasing trend from the northwest inland to the southeast coast...
October 18, 2018: Scientific Reports
M van der Velde, B Baruth, A Bussay, A Ceglar, S Garcia Condado, S Karetsos, R Lecerf, R Lopez, A Maiorano, L Nisini, L Seguini, M van den Berg
Here we assess the quality and in-season development of European wheat (Triticum spp.) yield forecasts during low, medium, and high-yielding years. 440 forecasts were evaluated for 75 wheat forecast years from 1993-2013 for 25 European Union (EU) Member States. By July, years with median yields were accurately forecast with errors below ~2%. Yield forecasts in years with low yields were overestimated by ~10%, while yield forecasts in high-yielding years were underestimated by ~8%. Four-fifths of the lowest yields had a drought or hot driver, a third a wet driver, while a quarter had both...
October 18, 2018: Scientific Reports
Bikash Kumar, Nisha Bhardwaj, Ansar Alam, Komal Agrawal, Himanshu Prasad, Pradeep Verma
A cellulase producing fungus Schizophyllum commune NAIMCC-F-03379 was isolated from decomposed leaf sample of Lantana camera. The nutritional components (wheat bran, magnesium sulphate and calcium chloride concentrations) and physical parameters (temperature and pH) were optimised by response surface methodology for enhanced cellulase production by S. commune NAIMCC-F-03379. The optimized medium contained: 1% (w/v) wheat bran, 0.3 g/L MgSO4, 0.8-1.0 g/L CaCl2 , optimum temperature and pH were 25 °C and 5 respectively...
October 17, 2018: AMB Express
Hafiz Muhammad Bilal, Tariq Aziz, Muhammad Aamer Maqsood, Muhammad Farooq, Guijun Yan
Production of phosphorus efficient crop cultivars can increase food productivity and decrease environmental pollution. Categorization of existing germplasm is a prerequisite to develop P efficient crop cultivars. For first experiment, 30 wheat genotypes were grown in hydroponics with two P levels (i.e., deficit, 20 μm KH2PO4 and adequate, 200 μm KH2PO4). Genotypes differed significantly for various P efficiency parameters. Two genotypes (Dirk and Bhakkar-02) showed < 25% decrease in growth at P deficiency...
2018: PloS One
Alexey Morgounov, Kai Sonder, Aygul Abugalieva, Vijai Bhadauria, Richard D Cuthbert, Vladimir Shamanin, Yuriy Zelenskiy, Ronald M DePauw
Wheat yield dynamic in Canada, USA, Russia and Kazakhstan from 1981 till 2015 was related to air temperature and precipitation during wheat season to evaluate the effects of climate change. The study used yield data from the provinces, states and regions and average yield from 19 spring wheat breeding/research sites. Both at production and research sites grain yield in Eurasia was two times lower compared to North America. The yearly variations in grain yield in North America and Eurasia did not correlate suggesting that higher yield in one region was normally associated with lower yield in another region...
2018: PloS One
Tegwe Soko, Cornelia M Bender, Renée Prins, Zacharias A Pretorius
Puccinia graminis f. sp. tritici race Ug99 (syn. TTKSK) has been identified as a major threat to wheat production based on its broad virulence. Despite its importance, the effect of Ug99 on different types of resistance in wheat has not been thoroughly researched. In field trials conducted with P. graminis f. sp. tritici race PTKST (Ug99 race group) over 2 years, AUDPC differentiated the moderately susceptible variety SC Stallion (515) and susceptible entries SC Nduna (995) and Line 37-07 (1634) from those with adult plant resistance (APR)...
October 17, 2018: Plant Disease
N I Dzyubenko
N.I. Vavilov was among the first scientists who recognized the high potential value of plant genetic resources (PGR) for humankind. In addition to his fundamental work on the centers of crop origin, he emphasized the importance of collection and ex situ conservation of cultivated plants and their wild relatives, to make them available for breeding programs and for future generations. Vavilov's ideas formed a solid scientific basis for the long-term efforts on securing PGR in ex situ genebanks, both internationally and in Russia...
October 2018: Biopreservation and Biobanking
Chang Gang Yang, Shou Xi Chai
Bundled straw covering (BSC), using corn whole straw for partial coverage planting, is a novel dryland cultivation technique. To examine the effects of BSC on the thermal-moisture status and winter wheat yield under typical arid and semiarid conditions in the Loess Plateau of Northwest China, soil temperature, soil water content and consumption, grain yield and water-use efficiency were compared for four treatments, including no-tillage with straw mulch (NTS), whole field plastic mulching with soil covering on the top of the plastic mulch and bunch-seeding (PFM), open field cultivation (CK) and BSC during three growing seasons from 2013 to 2016...
October 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Xiao Zhou Li, Ming de Hao, Jing Zhao, Zhe Wang, Wei Fu, Zeng Zhao Liu
Rational application of nitrogen and phosphorus is one of the main pathways to enhance wheat yield. The optimum dosage of nitrogen and phosphorus used in different precipitation patterns was studied using the binary quadratic regression equation, which could provide a basis for fertilization of wheat in Loess Plateau. The results showed that the amount of nitrogen and phosphorus ferti-lizer required for the maximum yield was dependent on precipitation patterns. The maximum wheat yield in normal years was 4229 kg·hm-2 , with the dosage of nitrogen and phosphorus applied being 172 and 164 kg·hm-2 , respectively...
October 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Zaid Alhabbar, Rongchang Yang, Angela Juhasz, Hu Xin, Maoyun She, Masood Anwar, Nigarin Sultana, Dean Diepeveen, Wujun Ma, Shahidul Islam
Optimising nitrogen fertiliser management in combination with using high nitrogen efficient wheat cultivars is the most effective strategy to maximise productivity in a cost-efficient manner. The present study was designed to investigate the associations between nitrogen utilisation efficiency (NUtE) and the allelic composition of the NAM genes in Australian wheat cultivars. As results, the non-functional NAM-B1 allele was more responsive to the nitrogen levels and increased NUtE significantly, leading to a higher grain yield but reduced grain protein content...
2018: PloS One
Lyudmila Zotova, Akhylbek Kurishbayev, Satyvaldy Jatayev, Gulmira Khassanova, Askar Zhubatkanov, Dauren Serikbay, Sergey Sereda, Tatiana Sereda, Vladimir Shvidchenko, Sergiy Lopato, Colin Jenkins, Kathleen Soole, Peter Langridge, Yuri Shavrukov
Two groups of six spring bread wheat varieties with either high or low grain yield under the dry conditions of Central and Northern Kazakhstan were selected for analysis. Experiments were set up with the selected wheat varieties in controlled environments as follows: (1) slowly progressing drought imposed on plants in soil, (2) rapid dehydration of whole plants grown in hydroponics, (3) dehydration of detached leaves, and (4) ABA treatment of whole plants grown in hydroponics. Representatives of two different families of transcription factors (TFs), TaDREB5 and TaNFYC-A7 , were found to be linked to yield-under-drought using polymorphic Amplifluor-like SNP marker assays...
2018: Frontiers in Plant Science
Heidi Webber, Frank Ewert, Jørgen E Olesen, Christoph Müller, Stefan Fronzek, Alex C Ruane, Maryse Bourgault, Pierre Martre, Behnam Ababaei, Marco Bindi, Roberto Ferrise, Robert Finger, Nándor Fodor, Clara Gabaldón-Leal, Thomas Gaiser, Mohamed Jabloun, Kurt-Christian Kersebaum, Jon I Lizaso, Ignacio J Lorite, Loic Manceau, Marco Moriondo, Claas Nendel, Alfredo Rodríguez, Margarita Ruiz-Ramos, Mikhail A Semenov, Stefan Siebert, Tommaso Stella, Pierre Stratonovitch, Giacomo Trombi, Daniel Wallach
Understanding the drivers of yield levels under climate change is required to support adaptation planning and respond to changing production risks. This study uses an ensemble of crop models applied on a spatial grid to quantify the contributions of various climatic drivers to past yield variability in grain maize and winter wheat of European cropping systems (1984-2009) and drivers of climate change impacts to 2050. Results reveal that for the current genotypes and mix of irrigated and rainfed production, climate change would lead to yield losses for grain maize and gains for winter wheat...
October 12, 2018: Nature Communications
Lokanadha R Gunupuru, Chanemougasoundharam Arunachalam, Keshav B Malla, Amal Kahla, Alexandre Perochon, Jianguang Jia, Ganesh Thapa, Fiona M Doohan
The mycotoxin deoxynivalenol (DON) serves as a plant disease virulence factor for the fungi Fusarium graminearum and F. culmorum during the development of Fusarium head blight (FHB) disease on wheat. A wheat cytochrome P450 gene from the subfamily CYP72A, TaCYP72A, was cloned from wheat cultivar CM82036. TaCYP72A was located on chromosome 3A with homeologs present on 3B and 3D of the wheat genome. Using gene expression studies, we showed that TaCYP72A variants were activated in wheat spikelets as an early response to F...
2018: PloS One
Hongjin Wang, Zhihui Yu, Bin Li, Tao Lang, Guangrong Li, Zujun Yang
Dasypyrum breviaristatum (genome VbVb) contains potentially important traits for commercial wheat production. Chromosome 2Vb of D. breviaristatum carries several desirable agronomic characters, including long spike length as well as enhanced resistance to stripe rust, which are expressed in a common wheat background. In this study, wheat-D. breviaristatum 2Vb deletion lines were produced and identified by fluorescence in situ hybridization (FISH), and 74 molecular markers specific to D. breviaristatum chromosome 2Vb were physically localized in 4 distinct chromosomal regions...
October 12, 2018: Cytogenetic and Genome Research
Xiaxiang Zhang, Petra Högy, Xu Na Wu, Iris Schmid, Xiulin Wang, Waltraud X Schulze, Dong Jiang, Andreas Fangmeier
Elevated CO2 promotes leaf photosynthesis and improves crop grain yield. However, as a major anthropogenic greenhouse gas, CO2 contributes to more frequent and severe heat stress, which threatens crop productivity. The combined effects of elevated CO2 and heat stress are complex, and the underlying mechanisms are poorly understood. In the present study, we examined the effects of elevated CO2 and high-temperature on foliar physiological traits and the proteome of spring wheat grown under two CO2 concentrations (380 and 550 μmol mol-1 ) and two temperature conditions (ambient and post-anthesis heat stress)...
October 11, 2018: Proteomics
Maria V Chandra-Hioe, Jenny Elvira, Jayashree Arcot
Lutein is a xanthophyll, a bioactive phytochemical that presents itself as colourful pigments in plants. Australian sweet lupin flour has been incorporated as a food ingredient in wheat bread and pasta to improve their sensory property and nutritional quality. However, the amount of lutein in lupin flour has not yet been determined. This is the first study to quantify naturally occurring lutein in Australian sweet lupin flour after the extraction efficiency was optimised. Several organic solvents (acetone, isopropyl alcohol, ethyl acetate and hexane), the use of an ultrasonic bath or a probe, the need for saponification and addition of ascorbic acid (served as antioxidant) were tested to compare the extraction yield...
October 10, 2018: Plant Foods for Human Nutrition
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