Robert L. Andersen
Cornell University
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Featured researches published by Robert L. Andersen.
Euphytica | 2002
Cheol Choi; Ryutaro Tao; Robert L. Andersen
A total of 17 pollen incompatibility groups in sweet cherry (Prunusavium L.) were identified among 46 accessions by PCR based S-alleletyping analysis and by controlled test pollinations. Two putativeS-alleles different from S1 to S6,Sz and Sy were identified. Five S-genotypes, S1S5, S1S6,S2S6, S4S6, andS5S6, combinations of S1 toS6 alleles that had not previously been identified from cultivars in NYSAES, were positively confirmed by PCR based S-genotyping analysis. Also, the S-genotypes of cultivars in some pollen incompatibility groups that had previously been incorrectly reported have been clarified. Several popular cultivars, which were previously used as testers for S-allele typing analysis, were found to have been inaccurately genotyped. In addition, the S-genotypes and self-incompatibility groups of some relatively recentlyintroduced cultivars were identified. The molecular typing system ofS-genotypes based on PCR is a useful and rapid method for identifying newS-alleles and incompatibility groups in sweet cherry.
Canadian Journal of Plant Science | 2001
Cheol Choi; Robert L. Andersen
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: S1S4’ for Lapins, and S3S4’ 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 fru...
Archive | 2001
Stephen A. Hoying; Terence L. Robinson; Robert L. Andersen
Archive | 1997
Robert L. Andersen; Susan K. Brown; Roger D. Way; Kenneth G. Livermore; David E. Terry
Acta Horticulturae | 2005
Amy F. Iezzoni; Robert L. Andersen; H. Schmidt; Ryutaro Tao; K. R. Tobutt; P. A. Wiersma
Archive | 1997
Robert L. Andersen; Susan K. Brown; Roger D. Way; Kenneth G. Livermore; David E. Terry
Sodininkystė ir Daržininkystė | 2006
Terence L. Robinson; Stephen A. Hoying; Robert L. Andersen
Archive | 2001
Robert L. Andersen; Cheol Choi; Jay Freer
Archive | 1999
Robert L. Andersen; Susan K. Brown; Roger D. Way; Kenneth G. Livermore; David E. Terry
Archive | 1997
Robert L. Andersen; Susan K. Brown; Roger D. Way; Kenneth G. Livermore; David E. Terry