简介：在根的组成的aerenchyma形成上的ethephon的效果作为材料与米饭变化Yangdao6被学习。空气空格的数字在与升起的ethephon集中显著地增加的mediopellis由瓦解的房间形成了，而超级氧化物dismutase(草皮)活动向下显示出趋势。与控制相比，表示xyloglucanendotransglycosylase(XET)铺平基因两个都是显著地更高的在顶端10公里和在100mg/Lethephon的根的远侧的部分对待植物。XET的累积应当与aerenchyma发展被联系。而且，更早外皮的房间死亡在ethephon治疗下面被观察，并且大多数在从根顶的4公里的房间的原子核与许多Golgi仪器，线粒体和膜瓦解了--在房间墙附近的界限泡。

简介：AnexperimentwasconductedtostudytheeffectsofdifferentPbconcentrationsonriceseedgerminationandseedlinggrowthinthreecultivars(Jiayu293,Jiayu948andXieyou963).ThemethodofqualitativetraitscombiningwithquantitativetraitsbyorthogonalpolynomialswasappliedtoanalyzericeseedvigorbyregressionmodelTheseedsfromdifferentricecultivarshaddifferentsensitivitytoPbpoison.InthePbconcentrationof100-700mg/L,Pbsignificantlydecreasedrootlengthandshootheight,andthedegreeoftherestraintwouldaggravatewiththeincreasingofPbconcentration.However,Pbdidnotreducerootdryweightandshootdryweight,whichindicatedthatdifferentphysiologicalcharacteristicshaddifferentsensitivereactionstoPb.Thepredictingequationsofregressionweredeveloped,whichcouldbeusedtopredicttheeffectsofdifferentPbconcentrationsonriceseedvigor.

简介：种子背景率，收益部件和从异国情调的米饭germplasm的169就职的谷物质量特点从40在高温度下面被测试吗？

简介：

简介：一个实验被进行在谷物在二个米饭变化，IR36和达利充满和颖果的呼吸特点上学习氮(N)率和申请时间的效果。处理在bothtillering和孕穗期(CK)没有N申请顶肥被在于，N顶肥在的6g/pot直到ering舞台和在孕穗期的N顶肥的2g/pot，N顶肥在的2g/pot直到ering舞台和在孕穗期的N顶肥的6g/pot。结果证明N肥料箱的合适的利用是有用的坚持说涨潮满足，更高的呼吸速度和在迟了的充满的米饭颖果的更高的脱氢酶活动分阶段执行，并且延长为充满并且维持米饭颖果的更高的呼吸速度和脱氢酶活动的功课。在启动的更多的N申请与更多的N申请在相比是更有效的到ering为止。

简介：我们调查了高地和稻装饰用的梨树大米怎么在二个耕作方法下面对磷的(P)化肥作出回应。高地米饭Zhonghan3和稻米饭Yangfujing8两个都在潮湿的耕作下面被种(MC，控制)并且有三P的赤裸的干燥耕作(DC)铺平，低(LP，45kg/hm2)，正常(NP，90kg/hm2)并且高(HP，135kg/hm2)。当P水平增加了，高地和稻米饭的谷物收益在DC下面增加了。为任何一个米饭在在HP和NP之间的谷物收益没有重要差别，尽管高地米饭稍微增加了，稻米饭稍微在谷物产量减少了。在在LP的DC下面，Zhonghan3显示出更高级的头milled米饭率和更好的外观，煮并且吃比在HP或NP的质量。Yangfujing8类似于Zhonghan3除了之外Yangfujing8最好在NP的外观质量。在MC下面，Zhonghan3让更高级的头milled米饭在在NP的质量的LP并且更好的煮并且吃评价。除了在外观质量，Yangfujing8类似于Zhonghan3。DC改进了高地和稻米饭的头milled米饭率和外观质量，并且煮并且稻米饭的滋养的质量。与稻米饭相比，高地米饭最好处理、滋养、吃的质量。结果建议高地和稻米饭对耕作方法和磷水平不同地作出回应。

简介：Potexperimentswereconductedin2002and2003toinvestigatetheeffectsofsoilcopper(Cu)concentrationongrowth,developmentandyieldformationofricebyusingthejaponicacultivarWuxiangjing14andhybridricecombinationShanyou63.Theplantheight,leafnumber,elongatedinternodenumberandheadingdateofriceplantswerenotaffectedatsoilCulevelsbelow200mg/kg,butaffectedsignificantlyatabove400mg/kg.TheinhibitoryeffectsonricegrowthanddevelopmentwereincreasedwiththeincrementofsoilCulevels.ThegrainyieldsdecreasedsignificantlywithraisingsoilCulevels.ThemainreasonsforthegrainyieldreductionsunderlowersoilCulevels(100,200mg/kg)weremainlyduetothedecreaseofnumberofspikeletsperpanicle,however,underhighersoilCulevels(morethan400mg/kg),bothpaniclenumberandnumberofspikeletsperpaniclecontributedtotheyieldloss.ThedecreasesofpaniclenumberbyCustressweremainlyattributedtoslowrecoveryfromtransplanting,delayedtilleringandreducedmaximumtillernumbers.ThereductionofnumberofspikeletsperpanicleundersoilGustressresultedfromthedecreasesofbothshootdryweight(SDW)attheheadingdateandtheratioofspikeletstoSDW.TotalbiomassatmaturitydecreasedsignificantlywiththeincreaseofsoilCulevels,whileeconomiccoefficientshowednon-significantdecreaseexceptundersoilCulevelsabove800mg/kg.

简介：Lipoxygenase3(LOX3)isamajorcomponentoftheLOXisozymesinmaturericeseeds.ToinvestigatetheroleofLOX3geneunderstresses,aplantexpressionvectorcontainingantisensecDNAofLOX3wasconstructed.RicevarietiesWuyunjing7andKasalathweretransformedbytheAgrobacterium-mediatedmethodandtransgenicriceplantsweregenerated.PCRandSouthernblotresultsshowedthattheantisenseLOX3genewasintegratedintothericegenome.AnalysesofembryoLOX3deletionandsemi-quantitativeRT-PCRconfirmedtheantisensesuppressionofLOX3geneintransgenicplants.TheT2antisenseplantsofLOX3weresensitivetodroughtstress,riceblastandbacterialblightcomparedwithnon-transgenicplants.TheseresultssuggestthattheLOX3genemightfunctioninresponsetostresses.

简介：盆栽试验被进行学习不同的氮应用程序时间的效果(在期间直到ering或孕穗期)与一样，氮在颖果开发和米饭变化Yangdao6的谷物质量评价。增加的氮肥(脲)，特别在孕穗期期间适用，能显然增加milled，雪白大米率和蛋白质与控制(没有氮申请)相比在米饭满足谷物，并且减少白垩的谷物率和直链淀粉内容。而且，增加的氮肥显著地影响了颖果发展并且当氮适用在期间时，提高了粒重直到ering和孕穗期，特别在孕穗期期间。在颖果开发期间，增加的氮肥适用在期间直到ering和孕穗期能显然减少全部的淀粉和直链淀粉内容，然而并非显然为在米饭的胶淀粉内容谷物。氮肥的增加的顶肥，特别在孕穗期期间适用，在amyloplasts和proteinoplasts的发展和结构的有的重要效果。也就是说，它能改变分发，数并且amyloplasts和proteinoplastsin塑造特别在谷物腹部的内乳房间。与控制相比，amyloplasts和proteinoplasts的安排各是更靠近的，与更多的数字，更高的密度和更少的间隙星际ohter。而且，大多数amyloplasts在增加的氮肥水平下面显示出多面体。

简介：Theeffectsofpolishingonproximatecompositions,physico-chemicalcharacteristics,mineralcompositionsandantioxidantpropertiesofthericefloursobtainedfromthreedifferentpigmentedricevarieties(Chak-haoAngangba,Chak-haoAmubiandChak-haoPoireiton)wereinvestigated.Thericevarietiesweresignificantly(P<0.05)differentinthecontentsofthetestcharacteristics.Lipids,ash,minerals,phytochemicals(phenolicacidsandflavonoids)and2,2-diphenyl-1-picrylhydrazyl(DPPH)activityofricefloursweredecreasedafterpolishing(9%degreeofmilling),whileamylosecontentandlightnesswereincreased.X-raydiffractionpatternofricefloursexhibitedA-typecrystallinepatternwithreflectionsat15.1o,17.1o,18.2oand23.0o.Pastingpropertiesandtransitiontemperaturesweredecreasedafterpolishingtreatment.Polishingresultedinchangesinthecrystallinity,enthalpyandmorphologyofriceflours.

简介：我们进行了在沙的土壤和黏土变得在土壤侧面在表面水，通过来自稻地的挥发的氨的损失，大米生产，氮使用效率，和氮内容里在NH4+-N的集中上决定氮申请层次的效果的大米的地试用。表面水和通过挥发失去的氨的数量里的NH4+-N的集中与增加氮申请水平增加了，并且在氮申请以后在1-3d达到顶点。更少的氨比从沙的土壤从黏土经由挥发被失去。在氮申请不同取决于舞台以后，当它被使用时，氨的数量经由挥发输了，从最高的损失到最低：支持tillering的N申请>支持圆锥花序开始的第一N顶肥(在最后4叶阶段适用)>基础化肥>支持圆锥花序开始的第二N顶肥(在最后2叶阶段适用)。经由从黏土的挥发的氨的全部的损失是10.49-87.06kg/hm2，到氮的10.92%-21.76%的等价物适用。经由从沙的土壤的挥发的氨的全部的损失是11.32-102.43kg/hm2，到氮的11.32%-25.61%的等价物适用。在表面水里经由挥发和NH4+-N的集中失去的氨的数量在氮申请以后同时达到顶点；在tillering的两个都显示出的最大值与在他们之间的比率上演从23.76%～33.65%。随氮申请水平的增加，在植物的米饭生产和氮累积增加了，但是氮使用效率减少了。在植物的瑞斯生产和氮累积比在沙的土壤在黏土是稍微更高的。在土壤，氮内容在40-50厘米的深度是最低的。在任何特定的土壤层，土壤氮内容与增加氮申请增加了水平，和土壤氮内容比在沙的土壤在黏土是更高的。以氨挥发，当氮申请水平在种季节的米饭超过了250kg/hm2时，经由挥发失去的氨的数量显著地增加了。为米饭生产，然而，合适的氮申请水平是约300kg/hm2。因此，为高庄稼收益和环境保护考虑需要，适当的氮申请水平是处于这些条件的250-300kg/hm2。

简介：Dissolvedoxygenandnitrogenformhaveimportanteffectsonricerootgrowthandnitrogenavailability.Anindicahybridrice,Guodao1,andaconventionaljaponicarice,Xiushui09,wereculturedinhypoxicnutrientsolutionwithNH4NO3or(NH4)2SO4asthenitrogensourceforsixweeksinpools.AportionoftheGuodao1seedlingsaftertreatmentinthepoolsforfourweeksweretransferredtoasplit-rootsystematdifferentdissolvedoxygencontentsandculturedforanadditionaltwoweeks.Biomass,rootmorphol...

简介：Soilsalinityandalkalinityadverselyaffectstheproductivityandgrainqualityofrice.Thegrainqualityof19ricegenotypescharacterizedassalttolerant(T),semi-tolerant(ST)andsensitive(S)wasassessedinlysimeterscontainingsalineandhighlyalkalinesoils.Headricerecoverywasreducedbysalinitystresswhereasitwasnotaffectedbyalkalinitystress.Theratiooflengthtowidth(graindimensions)wassignificantlyreducedintheTgenotypeevenatlowelectricalconductivity(EC,4mS/cm)andalkalinity(pH9.5),whereasintheSTgenotype,itwassignificantlyreducedathighsalinity(EC8mS/cm).TherewasnosignificanteffectofanylevelsofsalinityoralkalinityongraindimensionsintheSgenotype.AmylosecontentwassignificantlyreducedinTandSTgroupsevenatlowEC(4mS/cm)andalkalinity(pH9.5)andtheeffectintheSgenotypewasonlyathighsalinity.Starchcontentshowedsignificantreductionathighsalinityandalkalinity(EC8mS/cmandpH9.8)intheTandSTgenotypesandnosignificanteffectwasobservedintheSgenotype.Theeffectofbothlevelsofsalinity(EC4and8mS/cm)andhighalkalinity(pH9.8)ongelconsistencywasobservedonlyintheSgenotype.ThetolerantgenotypesIR36underhighsalinity,andCSR10andCSR11underalkalistressshowedlessreductioninamylosecontent.TheTgenotypeBR4-10,andSTgenotypesCSR30,CSR29andCSR13showedbettergelconsistencyundersalineandalkalistress.Amylosecontentwasaffectedevenatlowsalinitystressandthusimportanttobeconsideredinbreedingriceforsalttolerance.Overall,thegrainqualityofTandSTgenotypeswaslessaffectedbysalineandalkalistresscomparedtoSones.

简介：紫色米饭是为米饭消费者的bioactive抗氧化剂的来源。在煮过程的一个范围以后的主要抗氧化剂混合物的损失被在anthocyanin集中(ATC)和抗氧化剂能力(DPPH活动)测量变化评估四非粘并且四粘的遗传型。然而，在煮以前在水里浸泡通常减少了更多的ATC和抗氧化剂能力在比在粘的遗传型非粘。湿煮(WC)并且(S-WC)在湿煮以前，浸泡导致了与在遗传型之间的仅仅细微的变化失去几乎所有ATC和抗氧化剂能力。在粘的遗传型Pieisu，它有最高未加工的米饭ATC，ATC留下了最高当由WC方法煮了时。由对比，几乎，没有ATC在WC和S-WC以后留在象KumDoiSaket那样的低ATC遗传型。总的来说，ATC的损失是更大的在比在为WC和S-WC方法，而是颠倒的粘的遗传型非粘为抗氧化剂能力发生了。用电的米饭炊具的WC比煮的压力保留了更高的ATC。因此为有高ATC和抗氧化剂能力的遗传型，煮方法的选择为保留并且稳定米饭质量是批评的。

简介：Applicationofsilicon(Si)couldgreatlyboostriceyieldandmitigateabioticstress,especiallydrought.Afieldexperimentwasconductedduring2015attheresearchfarmofHongDucUniversity,ThanhHoaCity,Vietnam,toevaluatetheeffectsoffivedifferentcombineddosesofstandardfertilizerpracticeandSifertilizerongrowth,yieldandyieldcomponents,aswellasnutrientuptakeofrice.Thetreatmentsconsistedoftherecommendeddoseoffertilizer(RDF,110kg/hm2N+90kg/hm2P2O5+80kg/hm2K2O)asthecontrol,RDF+100kg/hm2SiO2,RDF+200kg/hm2SiO2,RDF+300kg/hm2SiO2andRDF+400kg/hm2SiO2.Theresultsshowedthatthegrowth,grainandstrawyieldsaswellasyieldcomponents(numberofgrainsperpanicle,seed-settingrateand1000-grainweight)weresignificantlyaffectedbySiapplication.Thehighestgrainyieldof3705kg/hm2wasobtainedwiththehighestlevelofSifertilizerincombinationwithRDF(RDF+400kg/hm2SiO2),however,itwasstatisticallyatparwiththeyieldsobtainedwithRDF+300kg/hm2SiO2(3664kg/hm2)andRDF+200kg/hm2SiO2(3621kg/hm2).TheoptimumdoseofSifertilizerwithmaximizedgrainyield(3716kg/hm2)was329kg/hm2SiO2.Thenutrient(Si,N,PandK)uptakesofricewerealsosignificantlyenhancedbySiapplication.Siapplicationatthelevelof329kg/hm2alongwithRDFwouldhelpinthesustainableproductionofriceinthetropicalzoneofVietnam.

简介：一个地实验被进行在有或没有稻草mulching在充满的土壤和非充满的土壤栽培的大米学习水使用效率和农学的特点。米饭在充满的耕作(FC)下面使用的水的Thetotal数量是2.42并且3.31倍于那由在有或没有稻草mulching的non-fiooded耕作下面的米饭分别地。Theaverage水渗出物是在充满的耕作，在没有稻草地面覆盖(ZM)的充满thenon的耕作下面的4750m~3/ha和在有稻草地面覆盖(SM)的非充满的耕作下面的4680m~3/ha下面的13560m~3/ha。在SM处理的土壤水分蒸发蒸腾损失总量仅仅分别地是theFC处理和ZM处理中的38.2%个和63.6%。与ZM处理相比，稻草mulching显著地每植物，直根长度，粗野的根长度和根增加了叶面积每米饭的植物弄干重量。在SM处理下面的最高的谷物收益(6747kg/哈)接近了在充满的土壤栽培的ther冰(6811.5kg/哈)。然而，在ZM处理下面的收益(4716kg/哈)在FS处理和SM处理下面是比那低得多的。水使用效率和灌溉用水使用效率的顺序两个都如下：SM>ZM>FC。

简介：淀粉，直链淀粉，蔗糖内容和在在开花以后的shading处理下面的淀粉合成酶的活动的动态变化作为材料用二米饭变化IR72(indica)和Nipponbare(装饰用的梨树)被学习。当仅仅有点改变的自动数据处理葡萄糖pyrophosphorylase(ADPGPPase)活动，可溶性淀粉synthase活动和小粒绑了淀粉synthaseactivity时，在shading处理，thest拱门，直链淀粉和蔗糖下面，内容减少了减少，可溶性淀粉分叉酶(SSBE，Q酶)活动和小粒界限淀粉分叉酶(GBSBE，Q酶)增加的活动，和淀粉初上舞台的人ranching酶(DBE，R酶)活动与变化变化了。关联分析证明淀粉内容的变化断然并且显著地在弱光与蔗糖内容的变化被相关。ADPGPPase活动和SSBE活动断然并且显著地与淀粉累积率被相关。淀粉synthase活动的衰落与淀粉内容的减少有关，淀粉分叉酶的活动的增加在弱光下面在直链淀粉的比率的减少起了一个重要作用到全部的淀粉，这被暗示。

简介：Tworicevarieties,Xiushui110withhighcadmium(Cd)toleranceandXiushui11withlowCdtolerancewereusedtostudytheeffectsofCdstressonseedgermination,seedlinggrowthandamylaseactivities.Thelowcadmiumconcentrationhadlittleeffectonseedgerminationrate.However,cadmiumstresscouldsignificantlyinhibitplumuleandradiclegrowth,especiallyforradiclegrowth.Germinationindex,vigourindex,radiclelengthandamylaseactivitiesofXiushui11decreasedmoresignificantlywiththeincreasingcadmiumlevelcomparedwithXiushui110.ThecadmiumcontentinseedlingsofXiushui11washigherthanthatinXiushui110whenthecadmiumconcentrationexceeded5μmol/L,whichcausedlowermitoticindexinroottipsandamylaseactivities,andmoreseriouscadmiumtoxicityinXiushui11.

简介：ThetransgenicriceKMD1,expressingasyntheticCry1AbgenefromBacillusthuringiensis,showedeffectiveresistancetoSignificantdeclineswererevealedinfoodconsumptionandgrowthoftheolderRLFnymphsfedonthecut-leavesoftransgenicKMD1plants.TheincreaserateoffoodconsumptionbylarvaefedonKMD1wasdrasticallylowerthanthoseonXiushui11.FoodconsumptionwasvariedwithdifferentinstarswhenthelarvaefedontheBtrice.Thoseoffourth-andfifth-instarlarvaeweredifferentcomparedtothethird-instar,lowerthanthoseonthenon-transgenicricebutstillincreasedalittlewhenthefeedingtimeprolonged.ItisindicatedthatyoungerRLFlarvaearemoresensitivetoBtricethanolderones.Also,about81%,78%and68%ofthethird-,fourth-andfifth-instarRLFlarvaediedwithin72hoursbioassayperiodonKMD1leaves,respectively.TheseresultsdemonstratedthatBt-transgeneinKMD1riceconferssubstantialprotectionagainstinfestationswitholderRLFlarvae.

简介：Withahigherpolyaminerice(indicavarietyJinlingxiang)asexperimentalmaterial,thechangesincontentsandcomponentsofpolyamines(PAs)inricegrainsafterharvestingwereinvestigatedunderthetreatmentsbysprayingthepaniclesandflagleavesofricewithPAssynthesisinhibitors,D-Arg(0.5,1.0,1.5and2.0mmol/L),methylglyoxalbis-guanylhydrazone(MGBG)(0.1,0.5,1.0and1.5mmol/L)andcyclohexylamine(CHA)(1.0,5.0,10.0,15.0and20.0mmol/L),attheheading,floweringandgrainfillingstages.TheinhibitionofD-ArgonthecontentsoffreeandboundPAsanditstotalamountsinricegrainswassignificant,especiallytreatedatthefloweringandgrainfillingstages.TreatmentswithMGBGandCHAaffectedmainlythecomponentsofPAs,andtheireffectsonthetotalamountsofPAswerenotsignificantexceptMGBGatthefloweringstageandCHAatbothheadingandfloweringstages.