检索结果-南通市图书馆

Enriching Iodine and Regulating Grain Aroma,Appearance Quality,and Yield in Aromatic Rice by Foliar Application of Sodium Iodide

引用

Rice science 2024年第3期31卷 328-342,I0046-I0054页

作者： HONG Weiyuan duan meiyang WANG Yifei CHEN Yongjian MO Zhaowen QI Jianying PAN Shenggang TANG Xiangru State Key Laboratory for Conservation and Utilization of Subtropical Agricultural Bioresources South China Agricultural UniversityGuangzhou 510642China Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of Agriculture and Rural AffairGuangzhou 510642China Guangzhou Key Laboratory for Science and Technology of Aromatic Rice Guangzhou 510642China

Applying iodine fertilizers to cultivate iodine-rich crops for daily intake is an effective approach for iodine supplementation,especially for aromatic *** experiments were conducted during the early growing seasons of 2021 and 2022 to evaluate the impacts of foliar application of iodine fertilizer on aromatic rice and to explore the optimal iodine fertilizer *** the full heading stage,six different concentrations of sodium iodide solutions of 0%(CK),0.010%(T1),0.025%(T2),0.050%(T3),0.075%(T4),and 0.100%(T5)were applied to indica aromatic rice cultivars Meixiangzhan 2 and *** results showed that sodium iodide treatments significantly increased the iodine and sodium contents in both leaves and *** with the CK,the T1 and T2 treatments increased the 2-acetyl-1-pyrroline(2-AP)content in mature grains by 8.41%-101.66%and 13.58%-74.60%,*** in the contents of 1-pyrroline-5-carboxylic acid,proline,1-pyrroline,and methylglyoxal,as well as the activity of proline dehydrogenase were also ***,sodium iodide treatments remarkably decreased the chalky grain rate,chalkiness area,and chalkiness degree of aromatic rice,with the T2 treatment exhibiting a 17.79%-47.42%decrease in chalkiness degree compared with the ***,T1 and T2 treatments showed beneficial impacts on chlorophyll content,photosynthetic characteristics,and yield components,while T3,T4,and T5 treatments exhibited adverse effects on leaf and grain *** linear discriminant analysis revealed significant differences between *** correlation analysis and piecewise structural equation modeling showed that the iodine and sodium influenced the photosynthetic characteristics and chlorophyll content of the leaves,thereby regulating the 2-AP biosynthesis and yield components,ultimately affecting the 2-AP content and ***,this study suggests that foliar application of 0.025%sodium iodide is an effective method t

关键词： 2-acetyl-1-pyrroline appearance quality aromatic rice foliar application grain yield iodine

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Assessing the yield difference of double-cropping rice in South China driven by radiation use efficiency

引用

Journal of Integrative Agriculture 2024年第11期23卷 3692-3705页

作者： Jian Lu Sicheng Deng Muhammad Imran Jingyin Xie Yuanyuan Li Jianying Qi Shenggang Pan Xiangru Tang meiyang duan State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/College of Agriculture South China Agricultural UniversityGuangzhou 510642China Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of Agriculture and Rural AffairsGuangzhou 510642China Guangzhou Key Laboratory for Science and Technology of Fragrant Rice Guangzhou 510642China

Double-cropping rice in South China continues to break the total yield record,but the yield potential of singlecropping rice is not being *** use efficiency(RUE)has been singled out as an important determinant of grain yield in many cereal ***,there is no information on whether the yield gaps in doublecropping rice involve differences in *** experiments were performed over two years to evaluate the effects of intercepted radiation(IP)and RUE on the above-ground biomass production,crop growth rate(CGR),and harvest index(HI),in four representative rice varieties,i.e.,Xiangyaxiangzhan(XYXZ),Meixiangzhan 2(MXZ2),Nanjingxiangzhan(NJXZ),and Ruanhuayoujinsi(RHYJS),during the early and late seasons of rice cultivation in South *** results revealed that grain yield in the early season was 8.2%higher than in the late *** yield advantage in the early season was primarily due to higher spikelets per panicle and above-ground biomass resulting from a higher *** spikelets per panicle in the early season were 6.5,8.3,6.9,and 8.5%higher in XYXZ,MXZ2,NJXZ,and RHYJS,respectively,than in the late *** higher early season grain yield was more closely related to RUE in the middle tillering stage(R^(2)=0.34),panicle initiation(R^(2)=0.16),and maturation stage(R^(2)=0.28),and the intercepted photosynthetically active radiation(IPAR)in the maturation stage(R^(2)=0.28),while the late season grain yield was more dependent on IPAR in the middle tillering stage(R^(2)=0.31)and IPAR at panicle initiation(R^(2)=0.23).The results of this study conclusively show that higher RUE contributes to the yield progress of early season rice,while the yield improvement of late season rice is attributed to higher radiation during the early reproductive *** allocating the RUE of double-cropping rice with high RUE varieties or adjustments of the sowing period merits further study.

关键词： grain yield radiation use efficiency double-cropping rice

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Enhancement of Ultrasonic Seed Treatment on Yield,Grain Quality Characters,and 2-Acetyl-1-Pyrroline Biosynthesis in Different Fragrant Rice Genotypes

引用

Phyton-International Journal of Experimental Botany 2022年第11期91卷 2461-2473页

作者： Rujian Lan meiyang duan Feida Wu Rifang Lai Zhaowen Mo Shenggang Pan Xiangru Tang State Key Laboratory for Conservation and Utilization of Subtropical Agricultural Bioresources South China Agricultural UniversityGuangzhou510642China Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of AgricultureGuangzhou510642China Guangzhou Key Laboratory for Science and Technology of Aromatic Rice Guangzhou510642China

Fragrant rice is popular for the good grain quality and special *** present study conducted a field experiment to investigate the effects of ultrasonic seed treatment on grain yield,quality characters,physiological properties and aroma biosynthesis of different fragrant rice *** seeds of three fragrant rice genotypes were exposed to 1 min of ultrasonic vibration and then cultivated in paddy *** results of present study showed that ultrasonic seed treatment increased grain yield of all fragrant rice genotypes but the responses of yield formation to ultrasonic were varied with different *** with control,ultrasonic seed treatment increased grain 2-acetyl-1-pyrroline(2-AP,the key component of fragrant rice aroma)content by 13.40%–44.88%.Ultrasonic seed treatment also reduced the crude protein contents in *** head rice rate,rice length,chalky rice rate,and chalkiness degree were influenced by ultrasonic for one or two fragrant rice *** activities of peroxidase and superoxide dismutase were also enhanced due to ultrasonic seed *** conclusion,ultrasonic seed treatment increased grain,regulated grain aroma and quality,and improved stress resistance of fragrant rice varieties.

关键词： Fragrant rice yield formation crop growth grain quality 2-acetyl-1-pyrroline

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nitrogen Deep Placement Combined with Straw Mulch Cultivation Enhances Physiological Traits,Grain Yield and Nitrogen Use Efficiency in Mechanical Pot-Seedling Transplanting Rice

引用

Rice science 2022年第1期29卷 89-100,I0031页

作者： LI Lin ZHANG Zheng TIAN Hua Umair ASHRAF Yousef Alhaj HAMOUD Al Aasmi ALAA TANG Xiangru duan meiyang WANG Zaiman PAN Shenggang State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of AgricultureSouth China Agricultural UniversityGuangzhou 510642China Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of Agriculture and Rural AffairsGuangzhou 510642China Department of Botany Division of Science and TechnologyUniversity of EducationLahore 54770Pakistan College of Agricultural Science and Engineering Hohai UniversityNanjing 210098China College of Water Conservancy and Civil Engineering South China Agriculture UniversityGuangzhou 510642China Key Laboratory of Key Technology for South Agricultural Machine and Equipment Ministry of EducationGuangzhou 510642China

To assess the effects of straw return coupled with deep nitrogen(N)fertilization on grain yield and N use efficiency(NUE)in mechanical pot-seedling transplanting(MPST)rice,the seedlings of two rice cultivars,i.e.,Yuxiangyouzhan and Wufengyou 615 transplanted by MPST were applied with N fertilizer at 150 kg/hm2 and straw return at 6 t/hm2 in early seasons of 2019 and *** experiment comprised of following treatments:CK(no fertilizer and no straw return),MDS(deep N fertilization and straw return),MBS(broadcasting fertilizer and straw return),MD(deep N fertilization without straw return),MB(broadcasting fertilizer without straw return).Results depicted that the MDS treatment significantly increased the rice yield by 41.69%-72.22%due to total above-ground biomass,leaf area index and photosynthesis increased by 54.70%-55.80%,38.52%-52.17%and 17.89%-28.40%,respectively,compared to the MB *** addition,the MDS treatment enhanced the total N accumulation by 37.74%-43.69%,N recovery efficiency by 141.45%-164.65%,N agronomic efficiency by 121.76%-134.19%,nitrate reductase by 46.46%-60.86%and glutamine synthetase by 23.56%-31.02%,compared to the MB *** average grain yield and NUE in both years for Yuxiangyouzhan were higher in the MDS treatment than in the MD ***,deep N fertilization combined with straw return can be an innovative technique with improved grain yield and NUE in MPST in South China.

关键词： mechanical pot-seedling transplanting nitrogen deep placement nitrogen use efficiency rice straw return

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Deep placement of nitrogen fertilizer increases rice yield and nitrogen use efficiency with fewer greenhouse gas emissions in a mechanical direct-seeded cropping system

引用

The Crop Journal 2021年第6期9卷 1386-1396页

作者： Lin Li Hua Tian Minghua Zhang Pingshan Fan Umair Ashraf Haidong Liu Xiongfei Chen meiyang duan Xiangru Tang Zaiman Wang Zheng Zhang Shenggang Pan State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of AgricultureSouth China Agricultural UniversityGuangzhou 510642GuangdongChina Scientific Observing and Experimental Station of Crop Cultivation in South China Ministry of AgricultureGuangzhou 510642GuangdongChina Guangzhou Key Laboratory for Science and Technology of Fragrant Rice Guangzhou 510642GuangdongChina Key Laboratory of Key Technology for South Agricultural Machine and Equipment Ministry of EducationGuangzhou 510642GuangdongChina College of Tropical Crops Hainan UniversityHaikou 570228HainanChina Department of Botany Division of Science and TechnologyUniversity of EducationLahore 54770PunjabPakistan Hezhou Academy of Agricultural Sciences Hezhou 542800GuangxiChina School of Engineering Jiangxi Agricultural UniversityNanchang 330045JiangxiChina

Deep placement of nitrogen fertilizer is a key strategy for improving nitrogen use efficiency. A two-year field experiment was conducted during the early rice growing seasons(March–July) of 2016 and *** experimental treatments comprised two rice cultivars: Wufengyou 615(WFY 615) and Yuxiangyouzhan(YXYZ), and three N treatments: mechanical deep placement of all fertilizers as basal dose at 10 cm soil depth(one-time deep-placement fertilization, namely OTDP fertilization);manual surface broadcast(the common farmer practice) of 40% N fertilizer at one day before sowing(basal fertilizer)followed by broadcast application of 30% each at tillering and panicle initiation stages;and no fertilizer application at any growth stage as a control. One-time deep-placement fertilization increased grain yield of both rice cultivars by 11.8%–19.6%, total nitrogen accumulation by 10.3%–13.1%, nitrogen grain production efficiency by 29.7%–31.5%, nitrogen harvest index by 27.8%–30.0%, nitrogen agronomic efficiency by 71.3%–77.2%, and nitrogen recovery efficiency by 42.4%–56.7% for both rice cultivars, compared with the multiple-broadcast treatment. One-time deep-placement fertilization reduced CH4-induced global warming potential(GWP) by 20.7%–25.3%, N2O-induced GWP by 7.2%–12.3%, and total GWP by 14.7%–22.9% for both rice cultivars relative to the multiple-broadcast treatment. The activities of glutamine synthetase and nitrate reductase were increased at both panicle-initiation and heading stages in both rice cultivars following one-time deep-placement fertilization treatment. Larger leaf area index at heading stage and more favorable root morphological traits expressed as larger total root length, mean root diameter, and total root volume per hill were also observed. One-time deep-placement fertilization could be an effective strategy for increasing grain yield and nitrogen use efficiency and lowering greenhouse-gas emissions under mechanical direct-seeded cropping systems.

关键词： N placement Grain yield Nitrogen use efficiency Greenhouse gas Direct-seeded rice

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

植物硝酸还原酶功能的研究进展

引用

中国农学通报 2009年第10期25卷 96-99页

作者：田华段美洋王兰华南农业大学农学院广州510642

硝酸还原酶(Nitrate Reductase,简称NR)是高等植物氮素同化的限速酶,可直接调节硝酸盐还原,从而调节氮代谢,并影响到光合碳代谢。发掘NR新的生理功能并探讨其作用机理具有重要的理论和实际意义。随着分子生物学技术的迅猛发展,可以从分... 详细信息

硝酸还原酶(Nitrate Reductase,简称NR)是高等植物氮素同化的限速酶,可直接调节硝酸盐还原,从而调节氮代谢,并影响到光合碳代谢。发掘NR新的生理功能并探讨其作用机理具有重要的理论和实际意义。随着分子生物学技术的迅猛发展,可以从分子水平上深入了解NR的生理功能及作用机制;此外还可能由此了解氮代谢及其与其他生理过程之间的关系;同时也深入了解NR、NO与植物抗逆性的关系;以及研究硝酸还原酶的展望。

关键词：硝酸还原酶有机酸一氧化氮抗逆性

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

不同水分和粒肥处理对香稻香气、品质和产量的影响

引用

灌溉排水学报 2018年第6期37卷 36-41页

作者：田华潘圣刚莫钊文段美洋唐湘如华南农业大学农学院/农业部华南地区作物栽培科学观测试验站广州510642

【目的】探索香稻适宜的水肥管理模式。【方法】以常规香稻"桂香占"和杂交香稻"培杂软香"为试验材料,采用盆栽试验,设置二因子三水平随机区组共9个处理,即水分因子设常规灌溉(维持水层1~3 cm,W0)、轻度控水灌溉(土壤水势维持在-20^-5 k ... 详细信息

【目的】探索香稻适宜的水肥管理模式。【方法】以常规香稻"桂香占"和杂交香稻"培杂软香"为试验材料,采用盆栽试验,设置二因子三水平随机区组共9个处理,即水分因子设常规灌溉(维持水层1~3 cm,W0)、轻度控水灌溉(土壤水势维持在-20^-5 k Pa,W1)和重度控水灌溉(土壤水势维持在-40^-25 k Pa,W2);粒肥因子设不施粒肥(N0)、低氮粒肥(每盆施尿素0.43 g,N1)和高氮粒肥(每盆施尿素1.08 g,N2),并以常规灌溉不施粒肥处理(W0N0)为对照,研究了9个处理对香稻香气、品质和产量的影响。【结果】轻度控水灌溉高氮粒肥处理(W1N2)香稻"桂香占"和"培杂软香"的糙米香气分别比W0N0处理显著增加了176.1%和62.3%;W1N2处理"桂香占"的精米率比W0N0处理显著提高了69.78%,但对"培杂软香"的精米率没有显著影响;W1N2处理"桂香占"和"培杂软香"的垩白粒率分别比W0N0处理显著降低了15.03%和9.45%;W1N2处理"桂香占"的总粒数和"培杂软香"的有效穗分别比W0N0处理显著提高了3.95%和24.72%;常规灌溉高氮粒肥处理(W0N2)处理"桂香占"和"培杂软香"的实际产量分别为6.85 t/hm2和6.97 t/hm2比其他各处理实际产量稍高,但各处理与W0N0处理相比没有显著差异。【结论】轻度控水灌溉高氮粒肥处理是浓香高产优质的最佳栽培措施,可在香稻的大面积和标准化种植中推广应用。

关键词：香稻水分粒肥香气品质产量

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

科技成果转化农学创新综合实验的探索与实践

引用

实验室研究与探索 2024年第5期43卷 220-224页

作者：莫钊文潘圣刚王在满段美洋唐湘如华南农业大学农学院广州510642 华南农业大学工程学院广州510642

探索将科技成果“香稻增香增产栽培技术”转化为农学专业的综合实验,形成“香稻增香增产栽培技术应用与香气测定分析”创新综合实验,包括了田间实验设计、田间调查与取样、室内测定与分析、实验报告撰写等环节的实验教学体系。通过多途... 详细信息

探索将科技成果“香稻增香增产栽培技术”转化为农学专业的综合实验,形成“香稻增香增产栽培技术应用与香气测定分析”创新综合实验,包括了田间实验设计、田间调查与取样、室内测定与分析、实验报告撰写等环节的实验教学体系。通过多途径强化创新能力。综合实验的实施有利于调动新农科学生的科研热情,增强科研创新素质和实践能力,实现推动卓越农林人才培养的目标。

关键词：科技成果农学创新综合实验增香增产栽培香稻香气

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

PBL模式在作物栽培学课程教学中的应用研究

引用

安徽农学通报 2023年第19期29卷 145-147页

作者：潘圣刚段美洋吴丽姬华南农业大学农学院广东广州510642

本文基于PBL模式,以作物栽培学课程为例,探讨PBL模式在作物栽培学教学中的应用特点,以期最大限度激发学生的学习兴趣,改善课堂的教学效果,提高农学专业学生的实践动手能力和创新思维能力,培养学生“知农爱农”的优良习惯,服务于中国的... 详细信息

本文基于PBL模式,以作物栽培学课程为例,探讨PBL模式在作物栽培学教学中的应用特点,以期最大限度激发学生的学习兴趣,改善课堂的教学效果,提高农学专业学生的实践动手能力和创新思维能力,培养学生“知农爱农”的优良习惯,服务于中国的“三农”事业发展。

关键词：问题导向模式教学作物栽培学

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

不同施肥深度对直播水稻氮素积累与转移的影响

引用

华北农学报 2016年第5期31卷 216-221页

作者：刘海东唐湘如赵烈田华莫钊文段美洋潘圣刚华南农业大学农学院广东广州510642 农业部华南地区作物栽培科学观测实验站广东广州510642

为了研究不同施肥深度对直播水稻氮素积累与转移及其产量的影响,以天优998和玉香油占为试材,通过设计4个不同的施肥深度,分别为4,8,12,16 cm,依次记为T1、T2、T3、T4,以不施肥为对照(T0),试验采用木箱种植法。结果表明,T2处理水稻拔节... 详细信息

为了研究不同施肥深度对直播水稻氮素积累与转移及其产量的影响,以天优998和玉香油占为试材,通过设计4个不同的施肥深度,分别为4,8,12,16 cm,依次记为T1、T2、T3、T4,以不施肥为对照(T0),试验采用木箱种植法。结果表明,T2处理水稻拔节期、抽穗期和成熟期叶片及茎鞘氮素积累量、植株氮素积累总量均为最高且显著高于T0和T4处理,氮素积累总量随生育期的推进在成熟期达到最高;T2处理在水稻拔节期、抽穗期和成熟期氮素阶段性积累量最高,且显著高于其他处理,分蘖期至拔节期氮素阶段性积累量在4个生育阶段中最高,2个品种表现一致;T2处理与T0和T1比较还显著增加了水稻灌浆期茎叶氮素表观转移量和氮素表观转移率,T2处理水稻的氮素吸收效率与T1、T3、T4比较,差异达到显著水平;而且,T2和T3处理水稻有效穗数显著高于其他处理,T2处理还提高了水稻结实率以及产量。因此,施肥深度8 cm的处理,不仅能显著提高直播水稻氮素吸收效率,而且还能够增加水稻每穴的有效穗数、结实率以及收获产量,这也说明了T2处理是直播水稻较适宜的施肥深度。

关键词：施肥深度直播水稻氮素积累氮素转移产量

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：