Combining ability for yield and plant phenology in plantain-derived populations
- A. TenkouanoAffiliated withCarolyn House, IITA c/o Lambourn and Co.
- , R. OrtizAffiliated withDepartment of Agricultural Sciences, The Royal Veterinary and Agricultural University (KVL)
- , D. VuylstekeAffiliated withCarolyn House, IITA c/o Lambourn and Co.
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Genetic enhancement of Musa spp. has aimed at producing hybrids with high yield, short stature, fast crop cycling, and disease resistance through interspecific and interploidy crosses. Progeny testing for parental selection has seldom been carried out in Musa and little is known on combining ability and heterosis in this species. A 5 × 5 factorial mating design was used to estimate components of phenotypic variance in 4 x-2 x hybrid populations and to determine the combining ability of their progenitors for yield and associated traits. General combining ability was much greater than specific combining ability for these traits, and, therefore, only little recombinative heterosis could be expected upon crossing. Thus, the 4 x-2 x breeding scheme should aim to accumulate favourable alleles in 4 x and 2 x clones through recurrent selection. Such clones could be used per se or in crosses aimed at restoring the seedlessness character in the progeny due to female sterility in a triploid background.
- Combining ability for yield and plant phenology in plantain-derived populations
Volume 104, Issue 3 , pp 151-158
- Cover Date
- Print ISSN
- Online ISSN
- Kluwer Academic Publishers
- Additional Links
- Musa spp.
- 4 x-2 x breeding scheme
- parental selection
- breeding value
- nonallelic interactions
- crop cycling efficiency
- Industry Sectors
- Author Affiliations
- 1. Carolyn House, IITA c/o Lambourn and Co., 26 Dingwall Road, Croydon, CR9 3EE, U.K. (author for correspondence)
- 2. Department of Agricultural Sciences, The Royal Veterinary and Agricultural University (KVL), 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark