Seed Yield Dynamics and Pollination Strategies in Red Clover

Red clover (Trifolium pratense L.) is a temperate forage legume whose economic value hinges on high and stable seed yield. Seed production is entirely dependent on insect‐mediated cross-fertilisation, yet yields are often constrained by a complex interplay of plant genetic factors, floral traits, pollinator community composition and pest pressures. Key components of seed yield include the number of flower heads per plant, florets per head and seeds per floret. Diploid and tetraploid cultivars differ markedly in these traits, with tetraploids typically exhibiting fewer seeds per head and lower pollen viability. Floral morphology and the timing and frequency of visits by long-tongued bumble bees and short-tongued generalist pollinators further modulate fertilisation success. Concurrently, seed‐eating weevils and other pests can depress yields unless managed by targeted insecticide use or cultural approaches. Understanding the interconnections among plant ploidy, self-incompatibility systems, pollinator efficiency and pest management is essential for optimising red clover seed production and for guiding breeding strategies aimed at enhancing both yield and resilience.

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Seed Yield Dynamics and Pollination Strategies in Red Clover publication trend

The graph below shows the total number of articles in seed yield dynamics and pollination strategies in red clover across all publications each year (not limited to Nature Index journals).

Technical terms

Ploidy: The number of complete sets of chromosomes in a plant, influencing flower and seed traits.

Self-incompatibility: A genetic mechanism that prevents self-fertilisation, ensuring cross-pollination by insects.

Pollination efficiency: The ratio of seeds set to the number of effective pollinator visits or pollen grains deposited.

Floret: An individual small flower within the composite flower head of red clover that can develop into a seed.

References

1. Pollination and Plant Reproductive Success of Two Ploidy Levels in Red Clover (Trifolium pratense L.). Frontiers in Plant Science (2021).
2. Pollinators, pests and yield—Multiple trade‐offs from insecticide use in a mass‐flowering crop. Journal of Applied Ecology (2022).
3. Review of seed yield components and pollination conditions in red clover (Trifolium pratense L.) seed production. Euphytica (2021).
4. Do plant ploidy and pollinator tongue length interact to cause low seed yield in red clover?. Ecosphere (2021).
5. Different pollination approaches to compare the seed set of diploid and tetraploid red clover Trifolium pratense L.. Nordic Journal of Botany (2021).