'NARITA 27'

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'NARITA 27' is a high-yielding and disease-resistant hybrid that is related, through its female grandparent, to a group of cooking and beer bananas called East African highland bananas (EAHB). ‘NARITA 27’ is named after NARO and IITA, the institutes that jointly developed the NARITA hybrids1 .

Two crosses were performed to obtain ‘NARITA 27’. The triploid EAHB cultivar ‘Nfuuka’ was crossed with a wild source of disease resistance to produce a tetraploid. This tetraploid was then crossed with an improved diploid to produce the triploid hybrid ‘NARITA 27’ (see Breeding strategy below).

Breeding strategy

Breeding scheme for 'NARITA 27'

‘NARITA 27’ is a secondary triploid obtained by crossing a disease-resistant tetraploid (222K-1) with an improved diploid developed by FHIA (SH3362)2 .

The tetraploid female parent 222K-1 was obtained by crossing the triploid EAHB cultivar ‘Nfuuka’ and Calcutta 4, a genebank accession of the diploid wild species Musa acuminata ssp. burmannica, which provided a copy of the so-called A genome. Calcutta 4 provided the resistance to black leaf streak.

The diploid male parent SH3362 was the product of a cross between two improved diploids: SH3217 (itself the product of a cross between two improved diploids: SH2095 and SH2766) and SH3142 (itself the product of a cross between two 'Pisang Jari Buaya' (AA)).

The parents of SH2095 were the products of a cross between 'Sinwobogi' (AA) and 'Tjau Lagada' (AA) and of a cross between Musa acuminata ssp. malaccensis and 'Guyod' (AA).

The parents of SH2766 were 'Tjau Lagada' (AA) and the product of a cross between Musa acuminata ssp. malaccensis and 'Guyod' (AA).

References

See also on this website

External links

Official website of Uganda's National Agricultural Research Organization, NARO and its banana research program