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CrossabilitybetweenArachishypogaeaL.andErectoidesspeciesA.sp.9990GKP

DOI: 10.7668/hbnxb.1993.S2.003, PP. 16-20

Keywords: Arachis,peanut,wildspecies,crossability

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Abstract:

EighteencultivarsrepresentingfivebotanicaltypesofArachishypogaeaL.werese-lectedasfemaleparentstocrosswithA.sp.9990,anErectoidesaccessionwithresistancetomul-tiplediseasesandpests.Allthecrossesfailedtoproduceviableseedsmainlyduetoembryoabor-tions.Threemorphologicallydifferenttypesofembryoabortionwererecorded.Markeddiffer-enceswereobservedbetweensubspecies,andamongbotanicaltypesandgenotypesinhybridpodproductionandembryodevelopment.Intermsofpodproductionper100pollinations,subspeciesfastigiatawassuperiortosubspecieshypogaea,andValenciaandVirginiatypesperformedbetterthanSpanishandPeruviantypes.FengqiuYibazhuaandSilihongwereamongthemostacceptablegenotypesbyshowinghigherpodproductionsanddelayedembryoabortions.Theseresultssug-gestthatthroughextensivescreenings,particulargenotypeswithhighercrossabilityorlessincompatibilitywithA.sp9990canbeobtained,andtheuseofsuchgenotypesinhybridizationprog.

References

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