Pollinizer Selection
Pollinizer Selection - Related Videos
02:40
Pollination and Flower Structure
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2020
Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs. Flowers must be pollinated to produce seeds. In angiosperms, pollination is the transfer of pollen from the anther of the stamen (the male structure) to the stigma of the carpel (the female structure). Flowers may be self-pollinated or cross-pollinated.
07:19
Field Experiments of Pollination Ecology: The Case of Lycoris sanguinea var. sanguinea
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Cited by 1 •
2016
To reveal the pollinator effectiveness of a given plant species, multiple methods of field experiments have been developed. This study demonstrates the basic methods of field experiments for pollination ecology using the case study of Lycoris sanguinea var. sanguinea and the novel pollination mechanism, breaking-bud pollination.
05:53
Artificial Selection - Student Protocol
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2019
Observing Artificial Selection in Plants ExpandTo begin the experiment, collect five two-week old grown plants from the generation one population that appear healthy. Note: Plants should appear green, not wilted, and not have damaged leaves. Experimental Hypothesis: The experimental hypothesis for this lab might be that the number of lead trichomes varies naturally, but the average number will increase over generations if only plants with the highest number of trichomes are interbred or...
01:58
Artificial Selection - Instructor Prep
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2019
Observing Artificial Selection in Plants ExpandTwo weeks before beginning the pollination experiments, collect a sufficient amount of small pots with a drainage hole in the bottom of each pot. Fill each pot about halfway with moist potting soil. NOTE: It is recommended to use a minimum of 50 plants for generation one. It is standard practice to list the species name and date of planting on each individual pot, although this is not necessary to label the generation one plants. Add a fertilizer...
07:03
Establishing Pollination Requirements in Japanese Plum by Phenological Monitoring, Hand Pollinations, Fluorescence Microscopy and Molecular Genotyping
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Cited by 6 •
2020
A methodology for the determination of pollination requirements in Japanese plum-type hybrids is described, which combines field- and laboratory-pollinations and observations of pollen tubes under the fluorescence microscopy with the identification of S-genotypes by PCR and the monitoring of flowering for the selection of pollinizers.
FAQs
Flowering overlap is a practical timing requirement because pollen can fertilize flowers only when the receiving stigmas are receptive. In a pollinizer plan, researchers therefore compare bloom periods of candidate cultivars rather than choosing solely by cultivar identity. A mismatch can leave compatible pollen unavailable during the receptive window, reducing the opportunity for fruit or seed formation.
Pollen compatibility determines whether pollen from one cultivar can successfully fertilize flowers of another. This requirement makes cultivar pairing more important than simply placing multiple plants together. When compatibility is present and pollen reaches receptive stigmas, cross-pollination can support fruit or seed production; without it, flowering may occur without producing the expected crop.
Using compatible pollen from another cultivar promotes cross-pollination rather than relying on ineffective self-pollination. That exchange can contribute to genetic diversity while also supporting fruit or seed production. In breeding programs, selecting pollen-producing partners is therefore relevant not only to immediate reproductive success but also to coordinating crosses among distinct plant materials.
Effectiveness depends on several linked conditions: the pollen must be viable, the donor and recipient cultivars must be compatible, and flowering must overlap while stigmas are receptive. Pollen transfer must also occur reliably between plants. Evaluating these conditions together helps explain why a cultivar that appears suitable in isolation may perform poorly in an actual planting.
Begin by identifying the crop cultivars that require effective cross-pollination, then compare candidate pollen-producing plants for compatibility and flowering period. Confirm that their pollen can reach receptive stigmas under reliable transfer conditions. Finally, use the matched cultivars to design an orchard or experimental arrangement that supports pollination and allows fruit or seed production to be assessed.
Researchers can use pollinizer selection as a diagnostic framework for separating pollination problems from other explanations for poor production. They examine whether the planted cultivars overlap in flowering, provide compatible viable pollen, and allow effective transfer to receptive stigmas. The findings can guide revised cultivar pairings or planting arrangements in orchards and breeding programs.