Downy mildew resistant lettuce
AssigneeRijk Zwaan Zaadteelt En Zaadhandel B.V.
InventorsCornelis Marinus MOOR, Egbert Carolus Johannes Smits
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Abstract
The present invention relates to a lettuce cultivar having resistance to downy mildew (Bremia lactucae) and which has an extraordinary high number of green, round-shaped leaves. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 79-22 RZ, referred to as Socrates, representative seed having been deposited under NCIMB Accession No. 41325.
Claims22
Lettuce plant designated 79-22 RZ, referred to as Socrates, representative seed of which having been deposited under NCIMB Accession No. 41325, wherein said plant has resistance to downy mildew (Bremia lactucae Regal) and an extraordinary high number of green, round-shaped leaves.
A method of producing a lettuce cultivar having resistance to downy mildew (Bremia lactucae Regal) as well as an extraordinary high number of green, round-shaped leaves, comprising:
- crossing a mother lettuce plant with a father lettuce plant to produce a hybrid seed;
- growing said hybrid seed to produce a hybrid plant;
- selfing said hybrid seed to produce F2 progeny seed;
- and
- selecting said F2-plants for having Bremia resistance as well as an extraordinary high leaf number.
Dependencies are inferred from the claim text.