%0 Journal Article
%T ReviewofthesesamebreedingbycharacteristicanalysisonthevarietiesinHenanprovince
%A 卫文星
%A 张红
%A 路凤银
%J 华北农学报
%P 49-53
%D 1994
%R 10.7668/hbnxb.1994.S2.011
%X Theresultsofcharacteristiccomparisonandprincipalcomponentanalysisshowedthatthemajor.characteristicsofsesamevarietiesinHenanprovincewereimprovedinthepastdecades.Thesesamebreedingworksintheprovincewerefocusedonthecollectionandthescreeningofthenativegermplasmsfrom1950to1969andthemeanvaluesofthevarietycharacteristicswerethelowest.In1970s,thepedigreebreedingwasmainlyconducted,whichresultedinthereleaseofvarietiesofvarioustypeswithbettertraits.During1980s,thehybridizationbreedingwascarriedoutdominantlywiththevarietiespossessingfinetraits.Since1990,therewerenobettervarietiesreleased.Tomakenewprogresses,itisessentialtorenewthebreedingmethodandatthesametimetointroduceandcreatespecialgermplasmstowidenthegeneticbackground.
%K sesame
%K varietyevolution
%K characteristiccomparison
%K principalcomponentanalysis
%U http://www.hbnxb.net/CN/abstract/abstract7963.shtml