Lettuce variety 83-02 rz
AssigneeRijk Zwaan Zaadteelt En Zaadhandel B.V.
InventorsEgbert Carolus Johannes Smits, Clement Michel Bernard Morice
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Abstract
The present invention relates to a Lactuca sativa seed designated 83-02 RZ, which may exhibit a combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1-31 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri), very intensely red deeply lobed leaves, and a loose to moderately firm head. The present invention also relates to a Lactuca sativa plant produced by growing the 83-02 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 83-02 RZ.
Claims36
A lettuce plant designated 83-02 RZ, representative seed of which having been deposited under NCIMB Accession No. 42311, wherein said plant comprises at least the following combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1-31 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri), very intensely red deeply lobed leaves, and a loose to moderately firm head.
A progeny plant of 83-02 RZ, which is the result of further breeding.
A method of producing a lettuce cultivar containing a combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1-31 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri), very intensely red deeply lobed leaves, and a loose to moderately firm head, 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 plant to produce F2 progeny seed;
- growing said F2 progeny seed to produce F2-plants;
- selecting said F2-plants for exhibiting resistance to downy mildew (Bremia lactucae) races B1:1-31 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri), very intensely red deeply lobed leaves, and a loose to moderately firm head, and, selfing said selected F2-plants to produce F3 progeny seed;
- growing said F3 progeny seed to produce F3-plants;
- selecting F3-plants for exhibiting resistance to downy mildew (Bremia lactucae) races B1:1-31 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri), very intensely red deeply lobed leaves, and a loose to moderately firm head, optionally followed by more selfing and selection steps.
A lettuce plant having morphological and/or physiological characteristics of a lettuce plant, representative seed of which having been deposited under NCIMB Accession No. 42311.
A method of introducing a desired trait into a plant of lettuce variety 83-02 RZ comprising:
- (a) crossing a plant of lettuce variety 83-02 RZ, representative seed of which having been deposited under NCIMB Accession No. 42311, with a second lettuce plant that comprises the desired trait to produce F1 progeny;
- (b) selecting an F1 progeny that comprises the desired trait;
- (c) crossing the selected F1 progeny with a plant of lettuce variety 83-02 RZ, to produce backcross progeny and (d) selecting backcross progeny comprising the desired trait and the physiological and morphological characteristic of a plant of lettuce variety 83-02 RZ, when grown in the same environmental conditions.
A method for producing a seed of a 83-02 RZ-derived lettuce plant comprising (a) crossing a plant of lettuce variety 83-02 RZ, representative seed of which having been deposited under NCIMB Accession No. 42311, with a second lettuce plant, and (b) whereby seed of a 83-02 RZ-derived lettuce plant form.
A lettuce plant exhibiting a combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1-31 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri), very intensely red deeply lobed leaves, and a loose to moderately firm head, and having genetic information for so exhibiting the combination of traits, wherein the genetic information is as contained in a plant, representative seed of which having been deposited under NCIMB Accession No. 42311.
Dependencies are inferred from the claim text.