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Untargeted UHPLC-Q-Exactive-MS-based metabolomics reveals associations between pre-and post-cooked metabolites and the taste quality of geographical indication rice and regular rice

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农业科学学报:英文版 2023年第7期22卷 2271-2281页

作者： SHI Shi-jie ZHANG Gao-yu cao cou-gui JIANG Yang College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 430070P.R.China Shuangshui ShuanglüInstitute Huazhong Agricultural UniversityWuhan 430070P.R.China

Geographical indication(GI)rice refers to the rice of specific geographical origin,which tends to have a good taste quality and a high commodity *** is favored for its soft texture and chewiness after ***,GI rice is also plagued by rice *** the reasons for the excellent taste quality of GI rice and identifying its geographical origin can help maintain the stability of the rice market and promote the development of the rice *** this study,we determined the taste quality of *** metabolomics based on UHPLC-Q-Exactive-MS was used to identify metabolites in GI and regular rice before and after *** findings suggested that GI rice showed lower protein and amylose content,resulting in higher starch gelatinization properties and taste *** study identified 520 metabolites,among which 142 and 175 were significantly different between GI and regular rice,before and after cooking,*** increased variety of metabolites after cooking was significantly negatively correlated with the taste quality of *** rice was lower in amino acids and lipid metabolite content before and after cooking,which may be the reason for the excellent taste *** linear discriminant analysis,we found that the differential metabolites of rice after cooking were more accurate in discriminating rice from different geographic origins,up to 100%.This work gained new insights into the metabolites of GI rice,which explains its excellent taste *** rice metabolites after cooking could be used for more accurate geographical identification of rice.

关键词： rice metabolomics taste quality before cooking after cooking

Sustainability of the rice-crayfish farming model in waterlogged land:A case study in Qianjiang county, Hubei Province, China

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Journal of Integrative Agriculture 2022年第4期21卷 1203-1214页

作者： YUAN Peng-li WANG Jin-ping GUO Can GUO Zi-yuan GUO Yao cao cou-gui Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of Yangtze River College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070P.R.China Hubei Collaborative Innovation Center for Grain Industry Yangtze UniversityJingzhou 434023P.R.China

The rice-crayfish farming model has been rapidly developed and become an economically viable method to supply food in China in recent ***,its environmental and economic sustainability has not been thoroughly *** study uses a survey in 2016 and a field experiment in 2017 in Qianjiang,Hubei Province,China to assess the relative economics of concurrent rice-wheat(RW),rice-crayfish(RC),and crayfish monoculture(CM)models in waterlogged land *** survey indicated that the RC model had a higher benefit-cost ratio(3.5:1)than the RW(2.0:1)and CM(3.1:1)models and the RC model protected farmers’enthusiasm for grain production facing unfavourable weather *** field experiment aimed to explore nitrogen management strategies in RC *** the experiment,four levels of nitrogen concentration gradient-0 kg N ha^(-1)(0 N),75 kg N ha^(-1)(75 N),150 kg N ha^(-1)(150 N)and 225 kg N ha^(-1)(225 N),were set in a 2-year-old rice-crayfish(RC2)field,an 8-year-old rice-crayfish(RC8)field,and a RWfield as a *** experiment results suggested that the peak rice yield in RW,RC2,and RC8 occurred when 225 N,150 N and 75 N were used,*** RC2 and RC8,however,residual feed-nitrogen that was not used by crayfish was utilized by rice ***,an optimal amount of nitrogen in RCfields was proposed to improve the nitrogen use efficiency and reduce environmental pollution by nitrogen *** use less nitrogen but have higher net income in RC than in RW and *** is necessary to sustainably develop integrated farming technologies(i.e.,properfield configurations for ricefields)to effectively sustain rice *** results also showed that the RC farming model was a viable diversification option for rice farmers in waterlogged land.

关键词： rice–crayfish benefit-cost ratio lodging nitrogen application

Effect of various combinations of temperature during different phenological periods on indica rice yield and quality in the Yangtze River Basin in China

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Journal of Integrative Agriculture 2022年第10期21卷 2900-2909页

作者： TU De-bao JIANG Yang ZHANG Li-juan CAI Ming-li LI Cheng-fang cao cou-gui National Key Laboratory of Crop Genetic Improvement MOA Key Laboratory of Crop PhysiologyEcology and Cultivation(The Middle Reaches of Yangtze River)Huazhong Agricultural UniversityWuhan 430070P.R.China Rice Research Institute Anhui Academy of Agricultural SciencesHefei 230031P.R.China

Rice grain yield and quality declines are due to unsuitable temperatures from wide regions and various sowing *** study aimed to evaluate the effects of temperature on rice yield and quality at different phenological periods and obtain suitable temperatures for phenological periods in the Yangtze River Basin,*** study conducted experiments on different sowing dates under different areas in the Yangtze River Basin to observe and compare the differences in rice growth,yield,and quality,controlling for regional *** results showed significant differences in rice growth,yield,and quality among sowing dates and areas,which were related to the average daily temperature during the vegetative period(VT)and the first 20 days of the grain-filling period(GT20).In addition,there was a smaller variation in the average daily temperature in the reproductive period(RT)than in the two phenological ***,according to the VT and GT20 thresholds of different yields and qualities,the experimental results were divided into four scenarios(Ⅰ,Ⅱ,Ⅲ,andⅣ)in this *** Scenario I,high head rice production(rice grain yield multiplied by head rice rate)and rice quality could be *** head rice production of ScenariosⅢandⅣwas lower than that of ScenarioⅠ,by 30.1 and 27.6%,*** Scenario II,the head rice production increased insignificantly while the chalky grain rate and chalkiness were 50.6 and 56.3%higher than those of Scenario *** conclusion,the Scenario I combination with VT ranges of 22.8-23.9℃and GT20 ranges of 24.2-27.0℃or the combination with VT ranges of 23.9-25.3℃and GT20 ranges of 24.2-24.9℃,which can be obtained by adjusting sowing date and selecting rice varieties with suitable growth periods,is recommended to achieve high levels of rice grain yield and quality in the Yangtze River Basin.

关键词： temperature phenological period grain yield quality

Methane and Nitrous Oxide Emissions from Rice-Duck and Rice-Fish Complex Ecosystems and the Evaluation of Their Economic Significance

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Agricultural Sciences in China 2009年第10期8卷 1246-1255页

作者： YUAN Wei-ling cao cou-gui LI Cheng-fang ZHAN Ming CAI Ming-li WANG Jin-ping Crop Physiology and Production Center （CPPC） Huazhong Agricultural University~Key Laboratory of Huazhong Crop PhysiologyEcology and Production Ministry of Agriculture Wuhan 430070 P.R China

Rice-duck （RD） and rice-fish （RF） ecological systems are major complex planting and breeding models of rice paddy fields in southern China. Studying the methane （CH4） and nitrous oxide （N2O） emissions and their economic value from these two ecosystems can provide theoretical and practical basis for further development and utilization of these classical agricultural techniques. CH4 and N2O emissions from RD and RF ecological systems were measured in situ by using static chambers technique. Using global warming potentials （GWPs）, we assessed the greenhouse effect of CH4 and N2O and their economic value. Results showed that the peaks of CH4 emission fluxes from RD and RF appeared at full tillering stage and at heading stage, and the average emission fluxes were significantly （P〈 0.05） lower than that from CK. N2O fluxes remained low when the field is flooded and high after draining the water. Compared with CK, the total amount of N2O emissions was significantly （P〈0.05） higher and slightly lower than those from RD and RF, respectively. In 2006 and 2007, the total greenhouse effect of CH4 and N20 from RD and RF were 4 728.3 and 4 611 kg CO2 ha^-1, 4 545 and 4 754.3 kg CO2 ha^-1, respectively. The costs of greenhouse effect were 970.89 and 946.81 RMB yuan ha^-1, and 933.25 and 976.23 RMB yuan ha^-1, respectively, which were significant lower than those from CK （5 997.6 and 5 391.5 RMB yuan ha^-1）. Except for the environment cost of CH4 and N2O, the economic benefits from RD and RF were 2 210.64 and 4 881.92 RMB yuan ha^-1; 3 798.37 and 5 310.64 RMB yuan ha^-1, respectively, higher than those from CK. Therefore, RD and RF complex ecological planting and breeding models can effectively decrease and control CH4 and N2O emissions, and they are two of the effective strategies to reduce greenhouse gases from rice paddy fields and contribute in alleviating global warming. Thus, their adoption is important to the environment together with their economy benefits.

关键词： methane emission nitrous oxide emission rice-duck complex ecosystem rice-fish complex ecosystem,greenhouse effect economic benefit

Innovation of the double-maize cropping system based on cultivar growing degree days for adapting to changing weather conditions in the North China Plain

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Journal of Integrative Agriculture 2020年第12期19卷 2997-3012页

作者： WANG Dan LI Guo-rui ZHOU Bao-yuan ZHAN Ming cao cou-gui MENG Qing-feng XIA Fei MA Wei ZHAO Ming College of Plant Science and Technology Huazhong Agriculturial University/Key Laboratory of Crop PhysiologyEcology and Cultivation(Middle Reaches of the Yangtze River)Ministry of Agriculture and Rural AffairsWuhan 430070P.R.China Institute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology&EcologyMinistry of Agriculture and Rural AffairsBeijing 100081P.R.China Insititute of Maize Science Tongliao Academy of Agricultural SciencesTongliao 028042P.R.China College of Life Science Inner Mongolia University for the NationalitiesTongliao 028000P.R.China College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193P.R.China

Double-maize cropping system is an effective option for coping with climate change in the North China Plain. However, the effects of changes in climate on the growth and yield of maize in the two seasons are poorly understood. Forty-six cultivars of maize with different requirements for growing degree days (GDD), categorized as high (H), medium (M) or low (L), and three cultivar combinations for two seasons as LH (using JD27 and DMY1 from category L in the first season;and YD629 and XD22 from category H in the second season), MM (using JX1 and LC3 from category M in the first season;and ZD958 and JX1 from category M in the second season) and HL (using CD30 and QY9 from category H in the first season;and XK10 and DMY3 from category L in the second season) were tested to examine the eco-physiological determinants of maize yield from 2015 to 2017. The correlations between the combinations of cultivars and grain yield were examined. The combination LH produced the highest annual grain yield and total biomass, regardless of the year. It was followed, in decreasing order, by MM and HL. Higher grain yield and biomass in LH were mainly due to the greater grain yield and biomass in the second season, which were influenced mainly by the lengths of the pre- and post-silking periods and the rate of plant growth (PGR). Temperature was the primary factor that influenced dry matter accumulation. In the first season, low temperatures during pre-silking decreased both the duration and PGR in LH, whereas high temperatures during post-silking decreased the PGR in MM and HL, resulting in no significant differences in biomass being observed among the three combinations. In the second season, high temperatures decreased both the PGR and pre- and post-silking duration in MM and HL, and consequently, the biomass of those two combinations were lower than that in LH. Moreover, because of lower GDD and radiation in the first season and higher grain yield in the second season, production effic

关键词： double-maize cropping system weather conditions grain yield North China Plain

Effects of N Management on Yield and N Uptake of Rice in Central China

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Journal of Integrative Agriculture 2012年第12期11卷 1993-2000页

作者： PAN Sheng-gang HUANG Sheng-qi ZHAI Jing WANG Jing-ping cao cou-gui CAI Ming-li ZHAN Ming TANG Xiang-ru Key Laboratory of Huazhong Crop Physiology Ecology and Production Ministry of Agriculture/College of Plant Science & Technology Huazhong Agricultural University College of Agriculture South China Agricultural University

Efficient N fertilizer management is critical for the economic production of rice and the long-term protection of environmental quality. A field experiment was designed to study the effects of N fertilizer management practices on grain yield and N uptake office. The experiment was laid out in the randomized complete block design with four replications in Central China during 2008 and 2009. Five N treatments denoted as No, NIsoA, N15oB, N24OA, and N24oB, respectively, were studied. NO represented no N application and served as a control, N15OA and N15oB indicated the total N application of 150 kg N ha-I but with two different application schedules （A and B） across the early stage of rice growth. Schedule A was applied as follows： 40% basal, 30% at 10 d after transplanting （DAT） and 30% at 36 DAT （nearly at the panicle initiation stage）, while schedule B was as follows： 30% at basal, 20% at 10 DAT, and 50% at 36 DAT. Similarly, N240A and N240B indicated the total N application of 240 kg N ha-1 with schedules A and B as described above. To quantify N uptake from fertilizer and soil, a 15N experiment was also conducted within the main experimental field, with micro-plots. Grain yields were significantly increased as N rates increased from 0 to 240 kg N ha-1. At the same rate, splitting N application as schedule B significantly increased the grain yield, spikelets per panicle, percentage of ripened grain, and 1 000-grain weight, compared with the N application according to schedule A. Mean rice recovery of N fertilizer by ~SN tracing method ranged from 25.39% at N24oA to 34.89% at NIsoB, however, N fertilizer residual rate in the soil ranged from 12.40% at N240A to 16.61% at N^s0w About 31.5 and 28.5% of total uptake of ~SN derived from basal fertilizer was absorbed at panicle initiation and heading stages, respectively. However, 65.6-92.5% of total uptake of 15N derived from topdressing fertilizer was absorbed at the heading stage. Based on yield and nitrogen recovery e

关键词： 15SN N fate N management recovery rice

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稻鸭共生对稻田水生动物群落的影响

生态学报 2005年第10期25卷 2644-2649页

作者：曹凑贵汪金平邓环华中农业大学植物科学技术学院武汉430070

通过稻田共生的田间试验,利用水生动物取样的方法,对稻鸭共生中稻田水生动物的种类及数量进行定性定量分析。结果表明:各类水生动物的种类数与水的动静有关,放鸭越多,种类数越少,水源区最少,为15种;且稻田水生动物种类出现频次的分布符... 详细信息

通过稻田共生的田间试验,利用水生动物取样的方法,对稻鸭共生中稻田水生动物的种类及数量进行定性定量分析。结果表明:各类水生动物的种类数与水的动静有关,放鸭越多,种类数越少,水源区最少,为15种;且稻田水生动物种类出现频次的分布符合C.R aunk iaer频度定律。各类水生动物的数目和生物量均按水源区、对照区、少鸭区、多鸭区的顺序下降。用M arga lef多样性指数公式计算各处理的多样性指数,以对照稻田的多样性指数2.15为最高,水源区和放鸭的稻田均不高,放鸭越多,多样性指数越低。

关键词：稻田稻鸭共生水生动物群落多样性指数

不同再生稻栽培模式对稻田温室气体排放和产量的影响

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农业环境科学学报 2019年第6期38卷 1373-1380页

作者：邓桥江曹凑贵李成芳农业农村部长江中游作物生理生态与耕作重点实验室/华中农业大学植物科学技术学院武汉430070 长江大学/长江大学主要粮食作物产业化湖北省协同创新中心湖北荆州434023

为研究再生稻对稻田温室气体排放和产量的影响,于2017年在潜江广华农场,设置常规栽培与优化栽培两种再生稻种植模式,研究其对稻田N2O与CH4排放、头季与再生季水稻产量的影响。结果表明,栽培模式显著影响N2O排放、CH4排放和全球增温潜势(... 详细信息

为研究再生稻对稻田温室气体排放和产量的影响,于2017年在潜江广华农场,设置常规栽培与优化栽培两种再生稻种植模式,研究其对稻田N2O与CH4排放、头季与再生季水稻产量的影响。结果表明,栽培模式显著影响N2O排放、CH4排放和全球增温潜势(GWP)。与常规栽培模式相比,优化栽培模式N2O累计排放量在头季、再生季和全生育期分别显著增加了82.0%、45.3%和64.0%,CH4累计排放量分别降低了55.0%、260.0%和34.9%,GWP分别降低了52.7%、218.6%和31.9%。同时,与常规栽培模式相比,优化栽培模式头季产量、再生季产量和总产分别提高了23.8%、30.0%和25.4%。研究表明,优化栽培模式相对于常规栽培模式在降低全球增温潜势的同时还能提高头季与再生季水稻产量,是一项低碳高产的再生稻栽培模式,值得在湖北省稻区推广。

关键词： CH4 N2O 产量全球增温潜势再生稻

氮肥深施对免耕稻田土壤有机质化学特性和胞外酶活性的影响

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农业环境科学学报 2021年第3期40卷 621-630页

作者：樊代佳李成芳曹凑贵农业农村部长江中游作物生理生态与耕作重点实验室/华中农业大学植物科学技术学院武汉430070 长江大学/长江大学主要粮食作物产业化湖北省协同创新中心湖北荆州434023

为了探究氮肥深施措施对免耕稻田土壤有机质化学特性及土壤酶活的影响机制,于2015—2016年在湖北省武穴市花桥镇试验点开展水稻-油菜免耕复种大田试验。本试验通过13C核磁共振和热裂解气相色谱/质谱联用法测定土壤有机质的化学特性,通... 详细信息

为了探究氮肥深施措施对免耕稻田土壤有机质化学特性及土壤酶活的影响机制,于2015—2016年在湖北省武穴市花桥镇试验点开展水稻-油菜免耕复种大田试验。本试验通过13C核磁共振和热裂解气相色谱/质谱联用法测定土壤有机质的化学特性,通过冗余分析揭示土壤有机质化学特性及土壤胞外酶活性之间的相互作用关系。结果表明,与传统表施相比,氮肥深施提高腐殖质中胡敏酸的有机碳含量(10.5%~30.7%)、轻组有机质的有机碳含量(31.7%~53.5%)、胡敏酸的疏水性(1.3%~11.6%)和轻组有机质中多糖与脂质的含量(9.0%~24.1%和43.4%~68.3%),降低土壤β-葡萄糖苷酶(BG)(22.2%~48.9%)和β-N-乙酰氨基葡糖苷酶(NAG)活性(32.7%~40.4%),提高L-亮氨酸氨基肽酶(LLA)(37.1%~38.5%)和酚氧化酶(PHO)活性(11.0%~16.0%)。冗余分析显示,土壤有机质的化学特性与LLA和PHO活性呈正相关,与BG和NAG活性呈负相关。本研究结果表明,与传统表施相比,氮肥深施尤其是深施10 cm主要通过促进作物和微生物群落生长提高土壤胡敏酸和轻组有机质的有机碳含量,且通过调控土壤BG、NAG和PHO活性改变胡敏酸和轻组有机质的化学组成与性质,从而改善土壤惰性有机质稳定性且提高活性有机质,最终提高土壤肥力和质量。因此氮肥深施尤其是深施10 cm值得在免耕稻田生产中得到进一步推广。

关键词：氮肥深施免耕稻田腐殖质胞外酶热裂解气相色谱/质谱