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This study was to determine the true nature of gynoecial structure and …


Biology Articles » Agriculture » Plant Production » Perfect Syncarpy in Apple (Malus x domestica ‘Summerland McIntosh’) and its Implications for Pollination, Seed Distribution and Fruit Production (Rosaceae: Maloideae) » Figures

Figures
- Perfect Syncarpy in Apple (Malus x domestica ‘Summerland McIntosh’) and its Implications for Pollination, Seed Distribution and Fruit Production (Rosaceae: Maloideae)

 

FIG. 1. A solitary bee, Andrena sp. (Hymenoptera: Andrenidae) visiting a Summerland McIntosh apple (Malus x domestica) blossom. Note the central stigmas covered with pollen.

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FIG. 2. Proportion of stigma receptivity grades in Summerland McIntosh apple (Malus x domestica) flowers at various developmental stages and their respective mean grade (± s.e.).

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FIG. 3. Mean percentage fruit set (± s.e.) for Summerland McIntosh apple (Malus x domestica) for each pollination treatment in 2002 and 2003. Bars sharing letters within a year are not significantly different (Tukey's HSD test, P = 0·05); analysis based on arcsine-transformed data.

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FIG. 4. Mean number of seeds per fruit (± s.e.) and expected seeds per fruit for Summerland McIntosh apple (Malus x domestica) for each pollination treatment in 2002 and 2003. Bars sharing letters within a year are not significantly different (Tukey's HSD test, P = 0·05).

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FIG. 5. Total seeds and expected seeds in Summerland McIntosh apple (Malus x domestica) for each pollination treatment in 2002 (data pooled for three trees) and 2003 (data pooled for five trees). Significant differences were found between the number of seeds observed and expected (2002: {chi}2 = 202·3, d.f. = 4; 2003: {chi}2 = 121·5, d.f. = 4).

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FIG. 6. The gynoecium of Summerland McIntosh apple (Malus x domestica) displaying perfect syncarpy. ‘A’ indicates the most basal transverse section examined by Cresti et al. (1980).

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