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1、《作物育种学总论》习题ExercisesingeneralintroductionofcropbreedingChapter1breedingobjectives1.terms:breedingobjectives,biologicalyield,economicyield,harvestindex,plantbreeding,breedingforhighphotosyntheticefficiency2.whatarethebasicrequirementsofmodernagricultureforcropvarieties?3.wh
2、ataretheprinciplesforformulatingbreedingobjectives?4.whatarethemainobjectivesofcropbreeding?5.,howcanwecorrectlyformulateapracticalbreedingtarget?6.,whycancropyieldincreasethroughdwarfbreeding?7.,formulateabreedingtargetforaparticularcropforaregionyouarefamiliarwithandexpl
3、ainwhy.ThesecondchapteristhebreedingmodeandvarietiesofcropsFloralstructureandfloweringhabitsofthewheat,corn,cotton,soybeansandothercrops.Whatarethefloralstructureandfloweringhabitsconducivetocrosspollination?Whatarethefloralstructureandfloweringhabitsconducivetoselfpollina
4、tion?Combiningthespecificcrops,thegeneticeffectsofselfingandoutcrossingwerebrieflydescribed.Whatarethetypesofcropsandwhatarethebasiccharacteristicsofthem?Whatarethebreedingcharacteristicsofdifferenttypesofpopulations?Thethirdchapter,GermplasmResources1.concepts:germplasmre
5、sources,origincenters,primarycenters,secondarycenters,nativecrops,secondarycrops,geneticdiversitycenters,genebanks,primarygenepools,secondarygenepools,andthreegenepools2.brieflydescribetheroleofgermplasmincropbreeding.3.brieflydescribethecharacteristicsandutilizationvalueo
6、flocalgermplasmresources.4.brieflydescribethecharacteristicsandutilizationvalueofforeigngermplasmresources.Whatistheroleofthetheoryof5.Vavilovorigincenterincropbreeding?6.howtodifferentiatebetweenprimaryandsecondarycenters?7.themaincontentsandidentificationmethodsofcropger
7、mplasmresourcesarediscussed.8.,whatisthesignificanceofestablishingthecropgenepool?Howtobuildacropgenebank?9.,whatisthesignificanceofestablishingadatabaseofcropgermplasmresources?Howtoestablishadatabaseofcropgermplasmresources?10.whatisthenecessityandsignificanceofexcavatio
8、n,collectionandpreservationofgermplasmresources?ThefourthchapterisintroductionandDomestic
