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1、Exercisesingeneralintroductionofcropbreeding（《作物育种学总论》习题）ExercisesingeneralintroductionofcropbreedingChapter1breedingobjectives1.terms:breedingobjectives,biologicalyield,economicyield,harvestindex,plantbreeding,breedingforhighphotosyntheticefficiency2.whatarethebasicrequirementsofmodernagricultur
2、eforcropvarieties?3.whataretheprinciplesforformulatingbreedingobjectives?4.whatarethemainobjectivesofcropbreeding?5.,howcanwecorrectlyformulateapracticalbreedingtarget?6.,whycancropyieldincreasethroughdwarfbreeding?7.,formulateabreedingtargetforaparticularcropforaregionyouarefamiliarwithandexplai
3、nwhy.ThesecondchapteristhebreedingmodeandvarietiesofcropsFloralstructureandfloweringhabitsofthewheat,corn,cotton,soybeansandothercrops.Whatarethefloralstructureandfloweringhabitsconducivetocrosspollination?Whatarethefloralstructureandfloweringhabitsconducivetoselfpollination?Combiningthespecificc
4、rops,thegeneticeffectsofselfingandoutcrossingwerebrieflydescribed.Whatarethetypesofcropsandwhatarethebasiccharacteristicsofthem?Whatarethebreedingcharacteristicsofdifferenttypesofpopulations?Thethirdchapter,GermplasmResources1.concepts:germplasmresources,origincenters,primarycenters,secondarycent
5、ers,nativecrops,secondarycrops,geneticdiversitycenters,genebanks,primarygenepools,secondarygenepools,andthreegenepools2.brieflydescribetheroleofgermplasmincropbreeding.3.brieflydescribethecharacteristicsandutilizationvalueoflocalgermplasmresources.4.brieflydescribethecharacteristicsandutilization
6、valueofforeigngermplasmresources.Whatistheroleofthetheoryof5.Vavilovorigincenterincropbreeding?6.howtodifferentiatebetweenprimaryandsecondarycenters?7.themaincontentsandidentificationmethodsofcropgermplasmresourcesarediscussed.8.,whatisthesignificanceofestablishingthecropgenepool?Howtobuildacropg
7、enebank?9.,whatisthesignificanceofestablishingadatabaseofcropgermplasmresources?Howtoestablishadatabaseofcropgermplasmresources?10.whatisthenecessityandsignificanceofexcavation,collectionandpreservationofgermplasmresou
