Johannes Petrus Antonius Jansen,Maria Helena Roosenboom-Kooijman,Willem van Vliet
申请号：
US13726030
公开号：
US09139846B2
申请日:
2012.12.22
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The present invention relates to a Lactuca sativa seed designated 45-21 RZ, which exhibits a combination of traits including resistance to downy mildew (Bremia lactucae) races Bi:1 to Bl:28 and CA-I to CA-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, very slow bolting, moderately to deeply incised margins of the mature leaves and a large head size. The present invention also relates to a Lactuca sativa plant produced by growing the 45-21 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-21 RZ.
