abstract |
The present invention relates to a Lactuca sativa seed designated 81-90 RZ, which exhibits a combination of traits including resistance to downy mildew ( Bremia lactucae ) races Bl:1-32 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid ( Nasonovia ribisnigri ), resistance to lettuce mosaic virus (LMV), and resistance to corky root rot ( Sphingomonas suberifaciens ). The present invention also relates to a Lactuca sativa plant produced by growing the 81-90 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 81-90 RZ. |