Diallel analysis in cassava adapted to the midaltitude valleys environment

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dc.creatorJaramillo, Gustavo
dc.creatorMorante, N
dc.creatorPérez Velásquez, Juan Carlos
dc.creatorCalle, F.
dc.creatorCeballos, H.
dc.creatorArias, B.
dc.creatorBellotti, Anthony C.
dc.date2005-05
dc.date2014-09-24T07:58:29Z
dc.date2014-09-24T07:58:29Z
dc.date.accessioned2026-06-27T14:43:14Z
dc.descriptionCassava (Manihot esculenta Crantz) is an important commodity for industrial processes in tropical countries as one of the few alternatives to compete with imported maize (Zea mays L.). To maintain this competitiveness, cassava breeding needs to be as efficient as possible. This study provides one of the first attempts to produce quantitative genetic data to aid breeding efficiency, through the analysis of a diallel set among nine parental clones adapted to the midaltitude valleys environment. Thirty clones represented each F1 cross (with three exceptions). Evaluations were conducted in two contrasting environments with three replications in each location. The specific combining ability (SCA) effects were relatively more important than general combining ability (GCA) effects for root yield. In the case of harvest index, dry matter content (DMC) and plant type architecture GCA effects were about twice as large as those from SCA effects. Reaction to mites (Mononychellus tanajoa Bondar) and white flies (Aleurotrachelus socialis Bondar) (based on single-location data) showed the strongest influence of GCA effects on the expression of a given trait. Yield data demonstrates the excellent potential of this crop for the tropical production of starch and source of energy in animal feed that could compete with the international markets.
dc.identifierhttps://hdl.handle.net/10568/42736
dc.identifier.urihttp://hdl.handle.net/123456789/86403
dc.languageen
dc.publisherWiley
dc.rightsLimited Access
dc.subjectmanihot esculenta
dc.subjectcombining ability
dc.subjectharvest index
dc.subjectdry matter content
dc.subjectdiallel crossing
dc.subjectmononychellus tanajoa
dc.subjectpest mites
dc.subjectaleurotrachelus socialis
dc.subjectpest insects
dc.subjectpest resistance
dc.subjectaptitud combinatoria
dc.subjectindice de cosecha
dc.subjectcontenido de materia seca
dc.subjectcruzamiento dialelo
dc.subjectacaros nocivos
dc.subjectinsectos dañinos
dc.subjectresistencia a las plagas
dc.titleDiallel analysis in cassava adapted to the midaltitude valleys environment
dc.typeJournal Article

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