Effects of different pollination treatments in genotypes of Prunus salicina Lindl.

Ontivero, M.; Radice, S.; Giordani, Edgardo; Bellini, E.

doi:10.31421/ijhs/12/2/647

Cited by 4 publications

(2 citation statements)

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“…'Black Jewell' and 'Sybarite' behaved as male-sterile and thus were not considered as pollenizers. Male sterility has been reported in japanese plum cultivars like First Beaut (Ramming, 1995) or Red Beaut (Herrero and Salvador, 1980) and in different offsprings (Ontivero et al, 2006). Whereas 'Black Jewell' did not show pollen grains in the anthers as 'Red Beaut' (Herrero and Salvador, 1980), 'Sybarite' had some few pollen grains but with very low viability.…”

Section: Discussionmentioning

confidence: 99%

Lack of Fruit Set Caused by Ovule Degeneration in Japanese Plum

Guerra¹,

Wünsch²,

López-Corrales³

et al. 2011

J. Amer. Soc. Hort. Sci.

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Some japanese plum (Prunus salicina) cultivars are particularly prone to erratic fruit set showing very low or even null fruit set for reasons that are not clear. To ascertain the causes of lack of fruit set in some of them, different factors intervening in the reproductive process have been evaluated using flowers of three cultivars, Angeleno, Rubirosa, and Sweet August, from commercial orchards with records of very low fruit set in previous seasons and compared with a producing cultivar, Simka. Different cultivars coincident at flowering with the cultivars studied were evaluated as adequate pollenizers in each orchard. To determine which factors that intervene in the reproductive process could be related to the lack of fruit set, microscopic observations of pollen germination, pollen tube growth, pollen–pistil incompatibility, and ovule development were analyzed in flowers of different pollination treatments. Results allowed dismissal of pollen viability, pollen transfer, and pollen–pistil incompatibility as the cause of lack fruit set. However, the observation of ovule development revealed a high incidence of premature ovule degeneration on final fruit set in the three low-producing cultivars. The lack of fruit set in orchards with no apparent adverse environmental conditions is traditionally studied by analyzing the pollination process and the pollen–pistil incompatibility relationships, but the stage of development of the ovules is not usually considered. The approach used in this work may prove valuable to other species and situations of lack of fruit set, which could help to identify the causes for premature ovule degeneration.

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Section: Discussionmentioning

confidence: 99%

Lack of Fruit Set Caused by Ovule Degeneration in Japanese Plum

Guerra¹,

Wünsch²,

López-Corrales³

et al. 2011

J. Amer. Soc. Hort. Sci.

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“…Most commercial cultivars of japanese plum (Prunus salicina) are self-incompatible (Nyéki and Szabó, 1995;Ontivero et al, 2006;Sansavini et al, 1981). The first S-genotype (S a S b ) of a japanese plum cultivar (ÔSordumÕ) was described by Yamane et al (1999).…”

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confidence: 99%

DNA-based S-genotyping of Japanese Plum and Pluot Cultivars to Clarify Incompatibility Relationships

Halász¹,

Hegedűs²,

Szabó³

et al. 2007

horts

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Diploid japanese plum (Prunus salicina Lindl.) cultivars are commonly self-incompatible. To date, 14 incompatibility alleles (S-alleles) have been identified and labeled with alphabetical (S a-S n) and 5 with numeric codes (S 1, S 3-S 6). We applied polymerase chain reaction amplification of the S-RNase alleles with degenerate and allele-specific primers in 10 japanese plum cultivars and two pluots of unknown incompatibility alleles. Besides DNA sequencing, an additional method for the exact length determination of the first intron region was used for the first time for S-genotype japanese plums. The S 3-allele was shown to correspond to S k in the alphabetic nomenclature, S 4 to S c, S 5 to S e, and S 6 to S f. The S 5-allele-specific primer can be used as a reliable marker for self-compatibility in japanese plum. ‘Black Amber’, ‘October Sun’, ‘TC Sun’, and ‘Super Giant’ share the S b S c genotype, which was confirmed by test crosses. These cultivars belong to the widest incompatibility group currently known in japanese plum. An additional incompatibility group (S c S h) was established, including ‘Green Sun’ and ‘Queen Rosa’, a cultivar formerly known as a universal donor. By incorporating all previous and recent results, a table was assembled including 49 cultivars assigned to I–VII incompatibility groups, to the self-compatible group and to the group O of unique genotypes. These data may considerably contribute to further growing and breeding activities.

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Japanese plum pollination: A review

Guerra¹,

Rodrigo

2015

Scientia Horticulturae

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Effects of different pollination treatments in genotypes of Prunus salicina Lindl.

Cited by 4 publications

References 0 publications

Lack of Fruit Set Caused by Ovule Degeneration in Japanese Plum

Lack of Fruit Set Caused by Ovule Degeneration in Japanese Plum

DNA-based S-genotyping of Japanese Plum and Pluot Cultivars to Clarify Incompatibility Relationships

Japanese plum pollination: A review

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