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| 1 | 陆地棉子叶色素腺体延缓形成种质系的育成及其遗传研究显示文摘用(亚洲棉×比克氏棉)F1双二倍体作母本与陆地棉单节显性系1(Gl2Gl2gl3gl3)进行杂交, 获得具有比克氏棉子叶色素腺延缓形成性状的((亚洲棉×比克氏棉)F1双二倍体×陆地棉)F1种间三元杂种. 种间三元杂种高度不育, PMC减数分裂中期Ⅰ的染色体构型为2n = 52 = 41.45Ⅰ+ 4.38Ⅱ + 0.55Ⅲ + 0.04, 二价体交叉值为1.19. 用Gl2Gl2gl3gl3作轮回亲本对种间三元杂种进行连续回交, 在BC8群体中发现2株带目标性状的可育植株. 对其进行自交和筛选, 育成具有子叶色素腺体延缓形成特性的陆地棉种质系ABH-0318. 该种质的色素腺体性状稳定, 休眠种子除子叶边缘处有少量稀小的色素腺体外, 基本无色素腺体, 其棉酚含量为0.0175%, 属于典型的低酚棉类型; 种子萌发后, 子叶及植株主要器官含有大量的色素腺体, 棉酚含量与一般有酚棉品种相似, 即植株为有酚棉类型. 遗传分析结果表明, 该种质的子叶色素腺体延缓形成性状受位于Gl2和Gl3位点的二对基因互作控制, 其中位于Gl2 位点的基因来源于比克氏棉, 对已知的陆地棉色素腺体等位基因(Gl2和gl2)为显性, 但对Gl3则表现为隐性上位, 暂定其基因符号为Gl2b; 位于Gl3的基因为隐性基因, 来源于陆地棉. | 祝水金 蒋玉蓉 N.Reddy 季道藩 | 2004 | 科学通报2004，49，19： | 9 |
| 2 | Development and evaluation of low-altitude remote sensing systems for crop production management显示文摘Precision agriculture accounts for within-field variability for targeted treatment rather than uniform treatment of an entire field.It is built on agricultural mechanization and state-of-the-art technologies of geographical information systems(GIS),global positioning systems(GPS)and remote sensing,and is used to monitor soil,crop growth,weed infestation,insects,diseases,and water status in farm fields to provide data and information to guide agricultural management practices.Precision agriculture began with mapping of crop fields at different scales to support agricultural planning and decision making.With the development of variable-rate technology,precision agriculture focuses more on tactical actions in controlling variable-rate seeding,fertilizer and pesticide application,and irrigation in real-time or within the crop season instead of mapping a field in one crop season to make decisions for the next crop season.With the development of aerial variable-rate systems,low-altitude airborne systems can provide high-resolution data for prescription variable-rate operations.Airborne systems for multispectral imaging using a number of imaging sensors(cameras)were developed.Unmanned aerial vehicles(UAVs)provide a unique platform for remote sensing of crop fields at slow speeds and low-altitudes,and they are efficient and more flexible than manned agricultural airplanes,which often cannot provide images at both low altitude and low speed for capture of high-quality images.UAVs are also more universal in their applicability than agricultural aircraft since the latter are used only in specific regions.This study presents the low-altitude remote sensing systems developed for detection of crop stress caused by multiple factors.UAVs,as a special platform,were discussed for crop sensing based on the researchers'studies. | Yanbo Huang Steven J.Thomson Howard J.Brand Krishna N.Reddy | 2016 | International Journal of Agricultural and Biological Engineering2016，9，4： | 5 |
| 3 | Ground-based hyperspectral remote sensing for weed management in crop production显示文摘Agricultural remote sensing has been developed and applied in monitoring soil,crop growth,weed infestation,insects,diseases and water status in farm fields to provide data and information to guide agricultural management practices.Precision agriculture has been implemented through prescription mapping of crop fields at different scales with the data remotely sensed from space-borne,airborne and ground-based platforms.Ground-based remote sensing techniques offer portability,flexibility and controllability in applications for precision agriculture.In weed management,crop injury from off-target herbicide spray drift and herbicide resistance in weeds are two important issues.For precision weed management,ground-based hyperspectral remote sensing techniques were developed for detection of crop injury from dicamba and differentiation between glyphosate resistant and sensitive weeds.This research presents the techniques for ground-based hyperspectral remote sensing for these two applications.Results illustrate the advantages of ground-based hyperspectral remote sensing for precision weed management. | Yanbo Huang Matthew A.Lee Steven J.Thomson Krishna N.Reddy | 2016 | International Journal of Agricultural and Biological Engineering2016，9，2： | 3 |
| 4 | Characterizing downwind drift deposition of aerially applied glyphosate using RbCl as tracer显示文摘Rubidium chloride(RbCl)was used as a tracer tank-mixed with active ingredients to profile downwind deposition of aerially applied crop protection and production materials to characterize off-target drift,which helps improve spray efficiency and reduce environmental contamination.Mylar sheets were placed on a holder in the field at each sampling station to collect sprayed solution.RbCl tracer was used to assess downwind drift of nozzles mounted on the booms installed and controlled on both sides of an agricultural airplane.The experiment was conducted on a field covered by Bermuda grass(Cynodon dactylon).During the experiment,the airplane was planned to fly three passes with three replications at each of three different altitudes,3.7 m,4.9 m,and 6.1 m for total of 27 flight runs.The results indicated that sampling station location had a significant effect on RbCl concentration.However,application release altitude was not significant to the change of RbCl.Another practical application in the same aerial application system was used to assess crop injury from the off-target drift of aerially applied glyphosate.RbCl concentrations measured from Mylar sheets were correlated with visual injury,plant height,shoot dry weight,leaf chlorophyll content,and shikimate,which were measured from the leaves and plant samples collected.Overall,RbCl is an effective tracer for monitoring spray applications from agricultural aircraft and unmanned aerial vehicles to intensify agriculture output and minimize environmental impact. | Yanbo Huang Claudiane M.Ouellet-Plamondon Steven J.Thomson Krishna N.Reddy | 2017 | International Journal of Agricultural and Biological Engineering2017，10，3： | 2 |
| 5 | Clinical trial: oral feeding with a soft diet compared with clear liquid diet as initial meal in mild acute pancreatitis显示文摘 | E.SATHIARAJ S.MURTHY M. J.MANSARD G. V.RAO S.MAHUKAR D. N.REDDY | 2008 | Alimentary Pharmacology & Therapeutics2008，，6： | 1 |
| 6 | 抗草甘膦杂草的现状与未来展望显示文摘草甘膦-[N-(膦羧甲基)甘氨酸]是一种非选择性、广谱、内吸传导、苗后处理除草剂,三十年来广泛应用于世界各地。它抑制芳氨酸(色氨酸、酪氨酸、苯丙氨酸)生物合成,进而造成若干代谢紊乱,包括蛋白质和次生产物合成受抑制(Franz等,1997)以及莽草酸大量积累导致代谢破坏(Duke等,2003)。 | Vijay K.Nandula Krishna N.Reddy Stephen O.Duke Daniel H.Poston 陈良 闫春秀 | 2006 | 世界农药2006，28，2： | 0 |
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