RY1 - a newly released upland variety for Zaire
1988
Longanza, B. | Baibinge, M. | Alitum, U. (Programme de Recherches sur de Riz, Centre de Recherches de Yangambi, B.P. Kisangani (Zaire))
In 1976, seven varieties received from IRAT Cote d'Ivoire, were included in observational trials. RY1, RY2, and RY7 were selected for advanced yield trials 1977-80 in three locations, with R66 (check) and C4-1-5. RY1 yields in Yangambi, Bambesa, and Boketa were 30% and 23% more than that of local check R66. RY1 is moderately tall (142 cm), making hand harvesting easier and reducing lodging susceptibility in locations where strong winds frequently induce severe losses. It is also more resistant to leaf blast. All other characters are good. RY1 was released in Zaire in 1982 to replace R66.
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