Abstract
Fruit set on seven self-fertile (SF) sweet cherry genotypes from the Cornell Sweet Cherry Breeding Program was investigated. The S-alleles of all tested genotypes, based on controlled pollination and PCR-based S-allele typing analysis were determined to be: S 1 S 4 ’ for Lapins, and S 3 S 4 ’ for Stella, Starkrimson, NY 13688, NY 13696, NY 13788 and NY 13791. Higher fruit set of open-pollinated self-fertile genotypes indicated that the additional pollen donor was probably advantageous for fruit set in self-fertiles in the preliminary field study. However, no statistically significant differences were found between fully and self- (half compatible) pollination in caged trees in subsequent years’ studies. This inconsistency may have been due to shading by cages (for self-pollination only) or to differences in bee activity in caged trees as compared with open-pollinations made during preliminary studies. Additionally, the variation in fruit setting potential was dependent on genotype. Spring frost injury reduced fruit setting potential in self-fertile sweet cherries but pollen quality was not associated with variable fruit set. The results suggest that self-pollination would produce optimal fruit set in self-fertile sweet cherry cultivars regardless of partial pollen incompatibility. However, a more detailed study including fruit setting factors other than spring frost injury, and varying setting capacity depending on genotypes, would be required for a more complete determination of the commercial utility of growing self-fertile sweet cherries in solid blocks. Key words: Prunus avium L, sweet cherry, pollination, fruit set
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Claims 8
Claim · model-written summary
Lapins had S 1 S 4 ’ alleles.
- Taxon
- sweet cherry
Prunus aviumt0 - Material
- Lapinse0
- Gene
- S 1 S 4 ’e0
- Outcome
- S 1 S 4 ’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S 1 S 4 ’ for Lapins”
t0“sweet cherry”
Claim · model-written summary
Six other genotypes had S 3 S 4 ’ alleles.
- Taxon
- sweet cherryPrunus aviumt0
- Gene
- S 3 S 4 ’e0
- Outcome
- S 3 S 4 ’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S 3 S 4 ’ for Stella, Starkrimson, NY 13688, NY 13696, NY 13788 and NY 13791”
t0“sweet cherry”
Claim · model-written summary
Open pollination yielded higher fruit set in the preliminary field study.
- Taxon
- sweet cherryPrunus aviumt0
- Treatment
- open-pollinatede0
- Outcome
- fruit sete0
- Direction
- Highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher fruit set of open-pollinated self-fertile genotypes”
t0“sweet cherry”
Claim · model-written summary
Fully and self-pollination did not differ significantly in caged trees.
- Taxon
- sweet cherryPrunus aviumt0
- Treatment
- fullye0
- Outcome
- pollinatione0
- Comparator
- self- (half compatible) pollinatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no statistically significant differences were found between fully and self- (half compatible) pollination in caged trees”
t0“sweet cherry”
Claim · model-written summary
Fruit-setting potential varied by genotype.
- Taxon
- sweet cherryPrunus aviumt0
- Material
- genotypee0
- Outcome
- fruit setting potentiale0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variation in fruit setting potential was dependent on genotype”
t0“sweet cherry”
Claim · model-written summary
Spring frost injury reduced fruit setting potential.
- Taxon
- sweet cherriesPrunus aviume0
- Treatment
- Spring frost injurye0
- Outcome
- fruit setting potentiale0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spring frost injury reduced fruit setting potential in self-fertile sweet cherries”
Claim · model-written summary
Pollen quality was not associated with variable fruit set.
- Taxon
- sweet cherryPrunus aviumt0
- Organ / stage
- pollene0
- Outcome
- variable fruit sete0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pollen quality was not associated with variable fruit set”
t0“sweet cherry”
Claim · model-written summary
Authors suggest self-pollination could produce optimal fruit set despite partial incompatibility.
- Taxon
- sweet cherryPrunus aviume0
- Outcome
- self-pollination would produce optimal fruit sete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“self-pollination would produce optimal fruit set in self-fertile sweet cherry cultivars regardless of partial pollen incompatibility”