Abstract
SummaryIsozyme analysis of developing embryos of the avocado cultivar Gwen was conducted to determine the most likely pollen donors of trees in a mixed orchard including ‘Hass’, ‘Ryan’, ‘Reed’, ‘Bacon’, ‘Fuerte’, and ‘Ettinger’. A total of 130 embryos was collected from 12 ‘Gwen’ trees located adjacent to a range of different potential pollen donor cultivars. As some of the cultivars had identical zymograms at some loci, it was not always possible to identify positively a single male parent for a particular embryo. The most important pollen donor was ‘Ryan’ with a definite contribution of 53% and a possible contribution of 86%. Self-fertilization could not be excluded, with a possible frequency of about 5%, and a maximum of 17% pollination was possible with cultivars of flowering type A, the same as ‘Gwen’. Isozyme patterns for 9% of the embryos could not be accounted for by any of the cultivars in the orchard, and was attributed to pollen from nearby orchards. These results show that ‘Gwen’ is predominantly outcrossed by cultivars of the complementary flowering type, and that the major pollinator is ‘Ryan’.
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Claims 5
Claim · model-written summary
Ryan was the most important pollen donor of Gwen, with a definite contribution of 53% and a possible contribution of 86%.
- Taxon
- avocado
Persea americanae1 - Material
- Gwene1
- Organ / stage
- developing embryose1
- Interactor
- Ryane2pollinator
- Outcome
- contributione2
- Value
- 53%e2
- Qualifier
- possible contribution of 86%e2
- Setting
- mixed orcharde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Isozyme analysis of developing embryos of the avocado cultivar Gwen was conducted to determine the most likely pollen donors of trees in a mixed orchard”
e2“The most important pollen donor was ‘Ryan’ with a definite contribution of 53% and a possible contribution of 86%”
Claim · model-written summary
Self-fertilization of Gwen could not be excluded, with a possible frequency of about 5%.
- Taxon
- avocadoPersea americanae1
- Material
- Gwene1
- Organ / stage
- developing embryose1
- Outcome
- Self-fertilizatione3
- Value
- about 5%e3
- Qualifier
- could not be excludede3
- Setting
- mixed orcharde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Isozyme analysis of developing embryos of the avocado cultivar Gwen was conducted to determine the most likely pollen donors of trees in a mixed orchard”
e3“Self-fertilization could not be excluded, with a possible frequency of about 5%”
Claim · model-written summary
Pollination of Gwen by cultivars of flowering type A was possible at a maximum of 17%.
- Taxon
- avocadoPersea americanae1
- Material
- cultivars of flowering type Ae4
- Outcome
- pollinatione4
- Value
- 17%e4
- Qualifier
- maximume4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Isozyme analysis of developing embryos of the avocado cultivar Gwen was conducted to determine the most likely pollen donors of trees in a mixed orchard”
e4“a maximum of 17% pollination was possible with cultivars of flowering type A”
Claim · model-written summary
Isozyme patterns for 9% of the embryos could not be matched to any orchard cultivar and were attributed to pollen from nearby orchards.
- Taxon
- avocadoPersea americanae1
- Material
- Gwene1
- Organ / stage
- embryose5
- Outcome
- Isozyme patternse5
- Value
- 9%e5
- Qualifier
- attributed to pollen from nearby orchardse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Isozyme analysis of developing embryos of the avocado cultivar Gwen was conducted to determine the most likely pollen donors of trees in a mixed orchard”
e5“Isozyme patterns for 9% of the embryos could not be accounted for by any of the cultivars in the orchard, and was attributed to pollen from nearby orchards”
Claim · model-written summary
Gwen is predominantly outcrossed by cultivars of the complementary flowering type.
- Taxon
- avocadoPersea americanae1
- Material
- Gwene1
- Outcome
- outcrossede6
- Qualifier
- predominantlye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Isozyme analysis of developing embryos of the avocado cultivar Gwen was conducted to determine the most likely pollen donors of trees in a mixed orchard”
e6“is predominantly outcrossed by cultivars of the complementary flowering type”