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Combined Impact of Climate Change, Cultivar Shift, and Sowing Date on spring wheat Phenology in Northern China

Journal of Meteorological Research 2016年第5期30卷 820-831页

作者：肖登攀陶福禄沈彦俊齐永青 Institute of Geographical Sciences Hebei Academy of Sciences Key Laboratory for Agricultural Water Resource Hebei Key Laboratory for Agricultural Water-SavingCenter for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of Sciences Institute of Geographical Sciences and Resources Research Chinese Academy of Sciences

Distinct climate changes since the end of the 1980s have led to clear responses in crop phenology in many parts of the world. This study investigated the trends in the dates of spring wheat phenology in relation to mean temperature for different growth stages. It also analyzed the impacts of climate change, cultivar shift, and sowing date adjustments on phenological events/phases of spring wheat in northern China （NC）. The results showed that significant changes have occurred in spring wheat phenology in NC due to climate warming in the past 30 years. Specifically, the dates of anthesis and maturity of spring wheat advanced on average by 1.8 and 1.7 day （10 yr）-1. Moreover, while the vegetative growth period （VGP） shortened at most stations, the reproductive growth period （RGP） prolonged slightly at half of the investigated stations. As a result, the whole growth period （WGP） of spring wheat shortened at most stations. The findings from the Agricultural Production Systems Simulator （APSIM）-wheat model simulated results for six representative stations further suggested that temperature rise generally shortened the spring wheat growth period in NC. Although the warming trend shortened the lengths of VGP, RGP, and WGP, the shift of new cultivars with high accumulated temperature requirements, to some extent, mitigated and adapted to the ongoing climate change. Furthermore, shifts in sowing date exerted significant impacts on the phenology of spring wheat. Generally, an advanced sowing date was able to lower the rise in mean temperature during the different growth stages （i.e., VGP, RGP, and WGP） of spring wheat. As a result, the lengths of the growth stages should be prolonged. Both measures （cultivar shift and sowing date adjustments） could be vital adaptation strategies of spring wheat to a warming climate, with potentially beneficial effects in terms of productivity.

关键词： adaptation climate warming sowing date spring wheat growth stages northern China

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Root carbon consumption and grain yield of spring wheat in response to phosphorus supply under two water regimes

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Journal of Integrative Agriculture 2016年第7期15卷 1595-1601页

作者： GUAN Yu QIAO Zhen DU Jiu-yuan DU Yan-lei Department of Resource and Environmental Science Agronomy College Shihezi University State Key Laboratory of Grassland Agro-ecosystem Institute of Arid Agroecology School of Life Sciences Lanzhou University Institute of wheat Gansu Academy of Agricultural Sciences

In semiarid areas, cereal crops often alocate more biomass to root at the expense of aboveground yield. A pot experiment was conducted to investigate carbon consumption of roots and its impact on grain yield of spring wheat （Triticum aestivum L.） as affected by water and phosphorus （P） supply. A factorial design was used with six treatments namely two water regimes （at 80–75% and 50–45% ifeld capacity （FC）） and three P supply rates （P1=0, P2=44 and P3=109 μg P g–1 soil）. At shooting and lfowering stages, root respiration and carbon consumption increased with the elevate of P supply rates, regardless of water conditions, which achieved the minimum and maximum at P1 under 50–45% FC and P3 under 80–75% FC, respectively. However, total aboveground biomass and grain yield were higher at P2 under 80–75% FC; and decreased with high P application （P3）. The results indicated that rational or low P supply （80–75% of ifeld water capacity and 44 mg P kg–1 soil） should be recommended to improve grain yield by decreasing root carbon consumption in semiarid areas.

关键词： grain yield phosphorus supply rootcarbon consumption spring wheat water supply

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Development of yield forecast model using multiple regression analysis and impact of climatic parameters on spring wheat

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International Journal of Agricultural and Biological Engineering 2019年第4期12卷 110-115页

作者： Purbasha Mistry Ganesh Bora Natural Resources Management North Dakota State UniversityFargoND 58102USA Agricultural and Biological Engineering Department Mississippi State UniversityStarkvilleMS 39762USA

Understanding the impacts of climate change in agriculture is important to ensure optimal and continuous crop *** agricultural sector plays a significant role in the economy of Upper Midwestern states in the USA,especially that of North Dakota(ND).spring wheat contributes most of the wheat production in ND,which is a major producer of wheat in the *** study focuses on assessing possible impacts of three climate variables on spring wheat yield in ND by building a regression ***-five years of field data were collected and the trend of average minimum temperature along with average maximum temperature,average precipitation,and spring wheat yield was analyzed using Mann-Kendall *** study area was divided into 9 divisions based on physical *** minimum temperature plays an important role in the region as it impacts the physiological development of the *** trend was noticed for 6 divisions for average minimum temperature and average precipitation during growing *** and Southeast division showed the strongest increasing trend for average minimum temperature and average precipitation,***-central division had the most decreasing trend for average maximum temperature.A significant relationship was established between spring wheat yield and climatic parameters as the p-value is lower than 0.05 level which rejects the null *** regression model was tested for forecasting *** percentage deviation of error for the model is approximately±30%in most of the years.

关键词： yield forecast modelling multiple regression climatic parameters spring wheat

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Relationship between Carbon Isotope Discrimination and Grain Yield in spring wheat Cultivated under Different Water Regimes

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Journal of Integrative Plant Biology 2007年第10期49卷 1497-1507页

作者： Xing Xu Hanming Yuan Shuhua Li Richard Trethowan Philippe Monneveux Ningxia University Yinchuan China750021 Ningxia Key Laboratory of Agro-Biotechnology Academy of Agriculture and Forestery Sciences Yinchuan China750021 International Center for Maize and wheat Improvement A.P. 6-641 Mexico D.F. 06600 Mexico SupAgro Montpellier Montpellier Cedex France34060

In C3 plants, carbon isotope discrimination （A） has been proposed as an indirect selection criterion for grain yield. Reported correlations between A and grain yield however, differ highly according to the analyzed organ or tissue, the stage of sampling, and the environment and water regime. In a first experiment carried out in spring wheat during two consecutive seasons in the dry conditions of northwest Mexico （Ciudad Obregon, Sonora）, different water treatments were applied, corresponding to the main water regimes available to spring wheat worldwide, and the relationships between A values of different organs and grain yield were examined. Under terminal （post-anthesis） water stress, grain yield was positively associated with A in grain at maturity and in leaf at anthesis, confirming results previously obtained under Mediterranean environments. Under early （pre-anthesis） water stress and residual moisture stress, the association between grain A and yield was weaker and highly depended on the quantity of water stored in the soil at sowing. No correlation was found between A and grain yield under optimal irrigation. The relationship between A and grain yield was also studied during two consecutive seasons in 20 bread wheat cultivars in the Ningxia region （Northern China）, characterized by winter drought （pre-anthesis water stress）. wheat was grown under rainfed conditions in two locations （Guyuan and Pengyang） and under irrigated conditions in another two （Yinchuan and Huinong）. In Huinong, the crop was also exposed to salt stress. Highly significant positive associations were found between leaf and grain A and grain yields across the environments. The relationship between A and yield within environments highly depended on the quantity of water stored in the soil at sowing, the quantity and distribution of rainfall during the growth cycle, the presence of salt in the soil, and the occurrence of irrigation before anthesis. These two experiments confirmed the value of

关键词： carbon isotope discrimination drought salinity spring wheat yield.

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Fertilization Management for Improving Quality Properties of spring wheat in Northeast China

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Agricultural Sciences in China 2005年第3期4卷 207-213页

作者： LIUXiao-bing ZHANGQiu-ying[ JINJian WANGGuang-hua SJHerbert NortheastInstituteofGeographyandAgroecology ChineseAcademyofSciencesHarbin150040P.R.China DepartmentofPlantandSoilSciences UniversityofMassachusettsAmherstMA01003USA

Fertilization management to improve quality properties of spring wheat cultivars has received little research attention inNortheast China. In this study, the effects of different fertilization management regimes on the quality properties of springwheat cultivar New Kehan 9 (Triticum aestivum L.) were investigated for two years. The results showed that fertilizationconsistently increased wheat yield, and the highest yield was obtained with addition of N, P and NPK fertilizers. The NPKtreatment resulted in 50% more yield than the unfertilized plot. The average increases in protein content from NPK and NP atseeding + N at anthesis over no fertilization and NP fertilizers at seeding were 2.7% and 0.90% respectively. The highestprotein yields were achieved in NPK and NPK + N treatments, and the lowest protein yield was observed in the no fertilizertreatment due to both low protein content and grain yield. Fertilization increased gliadins content, but decreased gluteninscontent, thus the gliadins/glutenins ratios were higher in the fertilization treatments. The most obvious effect of fertilizationon kernel quality was the significant increase of hardness percentage. Although the dough rheological properties werenot strongly changed by fertilization, dry gluten and wet gluten were significantly increased, and the highest breadvolume and bread score were found in the NPK treatment in both years. The application of 3% urea at anthesis, or applying45 kg ha-1 of potassium sulphate at seeding, with urea and diammonium phosphate as basal applications, significantlyincreased protein yield and improved quality properties of this wheat *** words: Fertilization, Yield, Protein contents, Protein fractions, Quality, spring wheat

关键词： Fertilization Yield Protein contents Protein fractions Quality spring wheat

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Study on Somaclonal Variation of spring wheat

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Journal of Northeast Agricultural University(English Edition) 2004年第1期11卷 1-9页

作者： JIANGShu-mei HUShang-lian LIWen-xiong wheatLab NortheastAgriculturalUniversity.HarbinHeilongjiang150030PRC

Somaclonal variation of calli and regenerated plants of spring wheat were detected by using technique RAPD in the study. Calli at different culture stages and regenerated plants derived from young spikes and immature embryos were used as materials. Molecular variation could be reflected from electrophoresis pattern of RAPD fragments at different culture stage in calli, and in regenerated plants derived from different explants, even no phenotype variations were found. Somaclonal variation in calli and in regenerated plants appeared regularly: A higher frequency of variation in hybrids F2 was detected than that of the cultivar that is stable genetically. High variation frequency of RAPD fragments appeared in calli when cultured 75 days. The identical variations of RAPD fragments were observed in calli and in the regenerated plants induced from different genotype or explants. The variation frequency detected is higher in regenerated plants than that of in calli. RAPD could be applied easily and simply to determine variation in level of DNA at each stage cultured in vitro.

关键词： spring wheat somaclonal variation callus regenerated plant RAPD

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Estimation of spring wheat Water Use Efficiency by Remote Sensing in the Yingke Oasis of Heihe Drainage Area

Estimation of Spring Wheat Water Use Efficiency by Remote Se...

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作者： G.J.Yang Z.R.Xing Y.G.Feng W.J.Huang China National Engineering Research Center for Information Technology in Agriculture Shandong University of Science and Technology Department of Photogrammetry and Remote Sensing

It has played an important role in precision agriculture for referring to water management,which was accomplished by quantitative remote sensing technology to estimate crop water use ***,it can be useful to improve the benefit of agricultural water *** this study,the selected data were acquired in the growth season of spring *** June,2008,the field measurement was carried out with synchronization of satellite,airborne passing *** production of spring wheat and the water use under the water balance condition as variables,water use efficiency was *** results showed that using remote sensing technology to achieve evaluation of water use efficiency was able to meet the need of agriculture production,and also be worth of application and popularization.

关键词： Quantitative Remote Sensing Heihe Drainage spring wheat Water Use Efficiency

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Breeding and Cultivation Techniques of a New spring wheat Variety Kechun 140103

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Plant Diseases and Pests 2023年第3期14卷 16-18页

作者： Chao TIAN Ligang SHAO Jingyu CHE Yong MA Qichang ZHANG Ningtao LIU Zhikun WANG Xuewei YIN Liting DAI Keshan Branch of Heilongjiang Academy of Agricultural Sciences Qiqihar 161005China

Kechun 140103 is a new spring wheat variety with high and stable yield bred by Keshan Branch of Heilongjiang Academy of Agricultural *** paper summarizes the breeding process,characteristics,yield performance and cult... 详细信息

关键词： spring wheat Kechun 140103 Breeding Cultivation techniques

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Analysis on the Expression of TaMOR Gene in Two Different spring wheat Varieties at Different Years

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Agricultural Biotechnology 2020年第4期9卷 4-6页

作者： Xia LI Qianglin WANG Chaoran LI Huafang ZHU Beixi ZHU Xin LIU Meifeng FU Lijun ZHU Li ZHU Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization/College of Biology and Agricultural Resources Huanggang 438000China Modern Agriculture Exhibition and Information Center of Huanggang Agricultural and Rural Bureau Huanggang 438000China

[Objectives]The TaMOR gene is a gene that affects the initiation and growth of the secondary roots of wheat,but the expression patterns in different parts of the wheat root system and the differences in expression in different varieties are not *** study aimed to investigate the expression of the TaMOR gene in the seminal roots,secondary roots and root base.[Methods]Real-time fluorescence quantitative PCR technology was used to analyze the relative expression levels of the TaMOR gene in seminal roots,secondary roots and root base of seedlings of ancient variety Monkhead and modern variety Longchun 35.[Results]There was no significant difference in the number of seminal roots between Longchun 35 and Monkhead,and the numbers of seminal roots of the two varieties did not change significantly during the three sampling *** number of secondary roots and shoot dry weight of Longchun 35 were significantly higher than those of Monkhead,and the number of secondary roots and shoot dry weight of both varieties increased with the sampling time *** root dry weight of Monkhead increased with the sampling time,while Longchun 35 showed the largest value at the second *** fluorescence quantitative PCR results showed that for 13-day seedlings,the relative expression of the TaMOR gene in root base was significantly higher than that in the seminal roots and secondary *** was no significant difference in the relative expression of gene TaMOR in the root system of Monkhead and Longchun 35.[Conclusions]The root allocation of gramineous crops decreases with the breeding years,and the difference in gene TaMOR expression level needs further study.

关键词： spring wheat Secondary root Primary roots Root TaMOR gene

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Comparison of the Impacts of Climate Change on Potential Productivity of Different Staple Crops in the Agro-Pastoral Ecotone of North China

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Journal of Meteorological Research 2016年第6期30卷 983-997页

作者：唐建昭王靖赫迪黄明霞潘志华潘学标 College of Resources and Environmental Sciences China Agricultural University

The aim of this study is to compare the impacts of climate change on the potential productivity and potential productivity gaps of sunflower （Helianthus annuus）, potato （Solanurn tuberosurn）, and spring wheat （Triticumaestivurn Linn） in the agro-pastoral ecotone （APE） of North China. A crop growth dynamics statistical method was used to calculate the potential productivity affected by light, temperature, precipitation, and soil fertility. The growing season average temperature increased by 0.47, 0.48, and 0.52℃ per decade （p 〈 0.05） for sunflower, potato, and spring wheat, respectively, from 1981 to 2010. Meanwhile, the growing season solar radiation showed a decreasing trend （p 〈 0.05） and the growing season precipitation changed non-significantly across APE. The light-temperature potential productivity increased by 4.48% per decade for sunflower but decreased by 1.58% and 0.59% per decade for potato and spring wheat. The climate soil potential productivity reached only 31.20%, 27.79%, and 20.62% of the light-emperature potential produc- tivity for sunflower, potato, and spring wheat, respectively. The gaps between the light-temperature and climate-soil potential productivity increased by 6.41%, 0.97%, and 1.29% per decade for sunflower, potato, and spring wheat, respectively. The increasing suitability of the climate for sunflower suggested that the sown area of sunflower should be increased compared with potato and spring wheat in APE under future climate warming.

关键词： crop potential productivity climate warming sunflower potato spring wheat soil fertility

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