中国大学mooc《Crop Cultivation(Sichuan Agricultural University) 》章节测试答案

titleCropCultivation(SichuanAgriculturalUniversity)中国大学mooc答案100分最新版contentChapter1GeneralintroductionChapter1Week1Unittest1、Theobjectiveofcropcultivationare答案:C.Therelationshipbetweencrops,environmentandmanagement

2、

Thediversityofplantscombinedwithenvironmentalandsocio-economicconditionsconstitutethecharacteristicsofcropcultivation.答案:C.Complexity

3、Thegeneralprocessofcropgrowth,followa答案:A,S-shapedcurve4、Theleafareaindexcanbedefinedasthe答案:C.Totalgreenleafarea/landarea

5、Thefollowingarelong-daycrops答案:D,rapeseed6、ThespringwheatvarietiesaresupposedtointroducedfromsouthernofChinatonorthernChina,andwhichphenomenonwilloftenoccurs.答案:

A.Earlyheadingorfreezingdamage

7、Wheatgrainsarecalledcaryopsisinbotany,andtheyarecomposedofembryo,andendosperm.答案:Bcortex

8、Thethreebasepointsoftemperaturereferto答案:A,thelowest,optimalandtheceilingtemperatures9、Theadaptationtemperaturerangeofcropsusuallyshowingthat答案:A.Maintainlife＞growth＞development10、Whichofthefollowingsoilstructuresismostconducivetocropgrowth?答案:B.Agglomeratestructure

11、Amongthefollowingcrops,whichoneistheshort-daycrop答案:B.Rice

12、Whichcropsbelongstomonocotsplants.答案:A.Wheat,rice,corn,barley

13、Thecropgrowthanalysisisamethodaccordingtothelawof.答案:B.Drymatteraccumulationandleafareaformation14、Late-maturingvarietieshavefewerleavesthanearly-maturingvarieties.答案:错误15、Theminimumtemperatureforseedgerminationforbothwheatandricehavethesamerequirements.答案:错误16、Theinfluenceofcropsonthesoilisdual,thatis,itconsumessoilnutrientsontheonehandanddestroysthesoilstructureontheother.答案:错误17、Dormancyisanadaptationofcropstoastressenvironment.答案:正确18、TheassimilationtransportationcapacityofC4cropishigherthanthatofC3crop.答案:正确19、

Leavesaretheonlyorganforphotosynthesis.答案:错误20、Cerealcropsgenerallyhavetilleringcharacteristics.答案:错误21、Maintainingahighroot-shootratiothroughoutthelifehistoryofcropsisthebasisforhighyieldandquality.答案:正确22、Thehigh-yieldingcroppopulationstructurerequiresthelargerstoragecapacity.答案:错误作业Chapter1GeneralintroductionChapter1Week1Unithomework1、1.Thedefinitionofcropcultivation

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1.Thedefinitionofcropcultivation2、2.Thetaskandmissionofcropcultivation

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2.Thetaskandmissionofcropcultivation3、3.ClassificationofCrops

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3.ClassificationofCrops4、4.TheoriginanddistributionofCrops

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4.TheoriginanddistributionofCrops5、5ThefuturedirectionofCropscultivation

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5ThefuturedirectionofCropscultivationChapter2PlantgrowthdevelopmentandregulationsChapter2Week2Unittest1、Whichprocessbelongstothedevelopmentofcrops

答案:D.Youngspikedifferentiation2、

Thefollowingisnotanecessaryconditionforseedgerminationis答案:A,light

3、

Thegeneralprocessofcropgrowth,followa答案:A,S-shapedcurve4、Theleafareaindexcanbedefinedasthe答案:C.Totalgreenleafarea/landarea

5、

Thefollowingarelong-daycrops答案:D,rapeseed

6、ThespringwheatvarietiesaresupposedtointroducedfromsouthernofChinatonorthernChina,andwhichphenomenonwilloftenoccurs.

答案:A.Earlyheadingorfreezingdamage

7、Wheatgrainsarecalledcaryopsisinbotany,andtheyarecomposedofembryo,

andendosperm.答案:Bcortex

8、Thethreebasepointsoftemperaturereferto‍答案:A,thelowest,optimalandtheceilingtemperatures9、Theadaptationtemperaturerangeofcropsusuallyshowingthat答案:A.Maintainlife＞growth＞development10、Whichofthefollowingsoilstructuresismostconducivetocropgrowth?答案:B.Agglomeratestructure

11、

Amongthefollowingcrops,whichoneistheshort-daycrop.答案:B.Rice

12、

Inthefollowingcrops

belongstomonocots.答案:A.Wheat,rice,corn,barley

13、Thecropgrowthanalysisisamethodaccordingtothe

lawofcrops.答案:B.Drymatteraccumulationandleafareaformation14、Late-maturingvarietieshavefewerleavesthanearly-maturingvarieties.答案:错误15、Theminimumtemperatureforseedgerminationforbothwheatandricehavethesamerequirements.答案:错误16、Theinfluenceofcropsonthesoilisdual,thatis,itconsumessoilnutrientsontheonehandanddestroysthesoilstructureontheother.答案:错误17、Dormancyisanadaptationofcropstoastressenvironment.答案:正确18、TheassimilationtransportationcapacityofC4cropishigherthanthatofC3crop.答案:正确19、‍

Leavesaretheonlyorganforphotosynthesis.答案:错误20、Cerealcropsgenerallyhavetilleringcharacteristics.答案:错误21、Maintainingahighroot-shootratiothroughoutthelifehistoryofcropsisthebasisforhighyieldandquality.答案:正确22、Thehigh-yieldingcroppopulationstructurerequiresthelargerstoragecapacity.答案:错误作业Chapter2PlantgrowthdevelopmentandregulationsChapter2Week2Unithomework1、1.Howtoapplicatethetemperatureandlightresponsecharacteristicsofcropsinfieldproduction?

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1.Howtoapplicatethetemperatureandlightresponsecharacteristicsofcropsinfieldproduction?2、2.Whatistherelationshipbetweenvegetativegrowthandreproductivegrowth?

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2.Whatistherelationshipbetweenvegetativegrowthandreproductivegrowth?3、3.Whatistherelationshipbetweenabovegroundgrowthandundergroundgrowth?

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3.Whatistherelationshipbetweenabovegroundgrowthandundergroundgrowth?4、4.Whatarethefactorsaffectingtillering?

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4.Whatarethefactorsaffectingtillering?Chapter3FormationofcropyieldandqualityChapter3Week3Unittest1、Theproportionofeconomicyieldinbio-yield,namelytheefficiencyofbio-yieldtransformingintoeconomicyield,isdefinedas

__or____.答案:A.harvestingindex;

B.economicindex2、Theyieldcomponentsofcerealcrop=

__×_×

___答案:B.spikenumber

;

C.seedsperspike;

D.weightperseed3、Photosyntheticcapacityofcropsiscloselyrelatedto

__,_and

___.答案:A.photosyntheticarea,;

C.photosyntheticduration;

D.photosyntheticefficiency4、Thedrymatteraccumulationofcropsfollowsthelogisticcurvepattern,whichgothrough

__、_、and___.答案:A.slowgrowthperiod;

B.exponentialgrowthperiod;

C.lineargrowthperiod;

D.saturationperiod5、Formationandfunctionof

‘Source-Path-Sink’arenotperformedinisolation,theyare

__,

_andsometimes

___foreachother.答案:A.interrelated;

B.reinforcing;

D.substitute

6、__,

_and

___areimportantguaranteesforhighyieldofcropsaccordingtothetheoryof‘Source-Path-Sink’答案:A.Sufficientsource;

B.largesink;

D.smoothpath7、Theyieldgapisthedifferencebetween

__and

____.答案:A.Actualyield;

B.Potentialyield8、Foranygivensiteandgrowingseason,yieldpotentialisdeterminedbythreefactors:

__,

_,and

___.答案:A.solaradiation;

B.temperature;

C.watersupply9、Thequalityofgraincropscanbesummarizedas__,

_,

and

___.答案:A.nutritionalquality;

B.ediblequality;

C.processingquality;

D.commodityquality10、commodityqualityreferstotheappearanceandpackagingofagriculturalproducts,suchas__,

_,

and

___.答案:A.form;

B.colourandlustre;

C.uniformity;

D.chemicalpollution11、Factorsaffectingcropqualityarecomplex.Itismainlyinfluencedby

_,

_,

and

___.答案:A.geneticcontrol;

B.climaticfactor;

C.cultivationmeasures;

D.ecologicalfactor12、Goodcultivationtechniqueisanimportantwaytoimproveproductquality,itcontainsfivemeasures:

_,

,

__,

_____andTimelyharvest答案:A.Rationalrotation;

B.Rationalcropdensity;

C.Scientificfertilization;

D.Timelyirrigationanddrainage13、Bio-yielddoesnotcontainrootsystem.答案:错误14、Ingeneral,theeconomicindexofcropsforharvestingvegetativeorgansishigherthanthatofcropsforharvestinggrains答案:正确15、Theyieldcomponentsaredifficultforgrowinginthesametime,thereisusuallyanegativecorrelationwitheachother.答案:正确16、Whencropindividualsandpopulationdevelopharmoniously,cropyieldcanbeincreased答案:正确17、Thestoragecapacityofcerealgraindependsonthedurationandrateoffillingstage.答案:正确18、Thetransportrouteofassimilateisphloem,andphloemparenchymacellsarethemaintissuefortransportofassimilate.答案:正确19、Inthebroadestsense,itisthoughtthatthesource-sinkrelationshipisimpactedbytheenvironmentwhichdrivessourceactivity(photosynthesis)andconsequentlyincreasessinkactivity(tissuegrowthandstorage).答案:正确20、Transferofmaterialsfromsourcetosinkisindependentofthesignalingnetwork.答案:错误21、Yieldpotentialisdefinedastheyieldofacultivarwhengrowninenvironmentstowhichitisadapted,withnutrientsandwaternon-limitingandwithpests,diseases,weeds,lodging,andotherstresseseffectivelycontrolled.答案:正确22、potentialyieldisdefinedasasthemaximumyieldwhichcouldbereachedbyacropingivenenvironments,asdetermined,forexample,bysimulationmodelswithplausible

physiologicalandagronomicassumptions.答案:正确23、Processingqualityisrelatedtoprocessingtechnology,butregardlessofthequalityofagriculturalproducts.答案:错误24、Thequalityofacropproductdependsontheformedspecificsubstance,suchasthequantityandqualityofstoredproteins,fats,starches,sugars,fibersandspecialsyntheticproductssuchastannins,alkaloids,terpenoids,etc,答案:正确25、Therapidaccumulationofoilinsoybeanseedswasearlierthanthatofprotein答案:正确26、Duringthesoybeanpodstage,thecontentofnon-proteinnitrogenintheseeddecreasedgradually,whilethepercentageofproteinnitrogenincreasedgradually.Thepercentageofproteinnitrogenstillincreasedafterleafsenescence.答案:正确27、Generalobservedonmostcrops,highcompositions,especiallyhighcontentsofprotein,fat,lysine,etc.isdifficulttocombinewithhighyield答案:正确28、Whentheamountofglucoseproducedbyphotosynthesisisequal,cropswithstarch-basedgrainsmustproducehigheryieldsthanthosewithproteinandfatasmaincomponents.答案:正确29、Therelationshipbetweenyieldandproteincontentislinear答案:错误30、Reasonablecultivationmeasuresandsuitableecologicalenvironmentareoftenconducivetoimprovingbothyieldandquality答案:正确作业Chapter3FormationofcropyieldandqualityChapter3Week3Unithomework1、1.Pleaseusethetheoryof‘Source-Path-Sink’toexplainthemaincausesoflowcropyield

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1.Pleaseusethetheoryof‘Source-Path-Sink’toexplainthemaincausesoflowcropyield2、2.Howtoimprovethelightutilityefficiency?

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2.Howtoimprovethelightutilityefficiency?3、3.WhataretheBenefitsofcroprotation

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3.WhataretheBenefitsofcroprotation作业Chapter4TherelationshipbetweencropsandtheenvironmentChapter4Week4Unithomework1、1.Pleasetalkabouttherelationshipbetweencropsandtheenvironmentalfactors.

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1.Pleasetalkabouttherelationshipbetweencropsandtheenvironmentalfactors.2、2.Expoundingtheapplicationofphotomorphogenesisinagriculturalproduction.

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2.Expoundingtheapplicationofphotomorphogenesisinagriculturalproduction.3、3.Pleasedescribetheeffectsoflowtemperatureandfreezingonplantcells.

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3.Pleasedescribetheeffectsoflowtemperatureandfreezingonplantcells.4、4.TalkabouttheimpactofCO2oncropgrowthincombinationwithlocalproduction.

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4.TalkabouttheimpactofCO2oncropgrowthincombinationwithlocalproduction.Chapter4TherelationshipbetweencropsandtheenvironmentChapter4Week4Unittest1、DoPrimaryconsumersfeedon

___?答案:A.Producer2、Therangeofwavelengthsiscalledvisiblelight.Visiblelightisusuallydefinedashavingwavelengthsin

therangeof

___nm.答案:D.400-700nm3、Theoptimumtemperatureforricegrowthanddevelopmentis______.答案:A.15C-18C4、Inplants,CLE25belongsto

___.答案:C.Peptide5、HowdogrowthrateschangewhenC3plantsresponsetoelevatedconcentrationsofcarbondioxide？答案:A.increase6、Whichthreeelementsarethemainnutrientsofthesoil？答案:B.N,P,K

7、Whataretheabioticcomponentthataffectthegrowthanddevelopmentofcrops?答案:A.Light;

B.Temperature;

C.Water;

D.Water;

E.Nutrition

8、Phytochrome

isanimportantpigmentthatregulatesphotomorphogenicaspectsof

plant

growthanddevelopment,suchas

___.答案:A.seedgermination;

B.stemelongation;

C.leafexpansion9、Theinfluenceofheatstressonplantgrowthisreflectedin____

.答案:B.damagefruitandfruit;

C.germinationratedecreased;

D.increasedABAandreducednetassimilation10、Floodingcancause

___problems.答案:A.SoilHypoxia;

B.Hypotropism;

C.Increasedethylenehormone;

D.Elongationofbranches11、Whichareimpactsofairpollutiononcrops？答案:A.visiblemarkingsonthefoliage;

B.reducedgrowthandyield;

C.prematuredeathoftheplant12、Whatarethefunctionsofsoil？答案:A.Providesahabitatfororganisms;

B.Recycleswasteproducts;

C.Filterswater;

D.

Servesasanengineeringmaterial;

E.Providesamediumforplantgrowth13、Whataretheformsofallelopathy?答案:A.WeedonCrop;

B.WeedonWeed;

C.CroponWeed;

D.CroponCrop14、Whatarethereleasewaysofallelochemicals?‍答案:A.Leaching;

B.Decomposition;

C.Volatilization;

D.Exudation15、Sunlightisnecessaryforphotosynthesis.答案:正确16、Excessivelightwillresultinthefollowingproblems:Scorchingofleaves.答案:正确17、Whenplantcellsaresubjectedtolowtemperaturestress,proteinconformationchangesandproteincomplexinstabilityoccur,andthenenzymekineticsisreduced,resultinginphotoinhibitionandanthocyaninaccumulation,impairedphotosynthesis,aswellasdecreasedenzymeandfluxcapacity,therebypromotingthereductionofreactiveoxygenspeciesandcausingmembraneleakage.答案:错误18、Wateruseefficiencyreferstotheabilityofcropstoproducebiomassperunitofwaterdischarged.答案:正确19、Themoreclayandorganicmatterasoilhas,theloweritsCECwillbe,andthelessnutrientsitwillretain.答案:错误20、Allelochemicalsareasubsetofsecondarymetabolites,whicharerequiredformetabolism(i.e.growth,developmentandreproduction)oftheallelopathicorganism.答案:错误Chapter5CropCultivationMeasuresandTechnologyChapter5Week5Unittest1、Asseedingmaterials,theseedsmustmeettheseedqualityrequirementsintermsofpurity,clarity,andgerminationrate,thegerminationrateshouldnotbelessthan().答案:C.90%2、Basefertilizerisalsocalled().答案:A.bottomfertilizer3、Concentratedfertilizationisapplyingfertilizersnearthe()ofcrops.答案:B.rootsorseeds4、Thetranspirationcoefficientforsorghumisbetween().答案:C.200-4005、Micro-irrigationisalsoknownas().答案:C.trickleirrigation6、Cropssuchasrice,corn,sorghum,soybean,wheat.Generally,theirseedsmoisturecontentmustcontrollessthan().答案:B.13%7、Plantgrowthretardants,whichmeanscompoundsthatinhibitcelldivisionandelongationinthesubapicalregionsofplantsbuthavenoeffecton().答案:B.apicalmeristem8、Croppingpatterncanbedividedinto()andcontinuouscroppingaccordingtotheplantingsequenceindifferentyears.答案:D.rotation9、Iftwoharvestoneyear,themultiplecropindexis().答案:C.200%10、

Generally,thedepthofrotarytillageisabout().答案:B.10-12cm11、Whichfactorsaffectingmultiplecropping?答案:A.thermalconditions;

B.waterconditions;

C.

fertility;

D.laborandmechanizedfactors12、Basictillageincludesseveraltypes,suchas().答案:A.ploughing;

B.sub-soiling;

C.rotarytillage

13、Top-soiltillageincludesseveraldifferenttypes,suchas().答案:A.harrow;

B.dragging;

C.inter-tillage;

D.soilrepression

14、Inproduction,themainsowingmethodsare().答案:A.broadcast;

B.drillsowing;

C.holesowing;

D.precisionsowing

15、Inagriculturalproduction,howmanykindsoffertilizers?‍答案:A.organicfertilizer;

B.microbialfertilizer;

D.inorganicfertilizer16、Surfaceirrigationincludingseveraldifferentways,suchas().答案:A.borderirrigation

;

B.furrowirrigation;

C.membraneirrigation;

D.submergedirrigation17、Harvestwaysdependonthecroptypes,including().答案:A.mowing;

C.

digging;

D.

picking18、Planthormonesrefertosubstancesproducedbymetabolismintheplantbody，whichcanbetransportedtootherpartsforactionandhavespecialeffectsonplantgrowthanddevelopmentatlowconcentrations,commontypesincluding().答案:A.auxin;

B.gibberellin,cytokinin

;

C.abscisicacid,ethylene;

D.brassinolactone

19、Inproduction,exceptchemical