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Which of the following is a diploid species of marigold?
EXPLANATION
Marigold & Jasmine Production Technology
- Ploidy Levels in Marigold (Tagetes spp., family Asteraceae):
- Tagetes tenuifolia (syn. Tagetes signata, Signet marigold): A diploid species ($2n = 2x = 24$) with small, delicate, edible citrus-flavored flowers.
- Tagetes erecta (African marigold): Also a diploid ($2n = 2x = 24$).
- Tagetes patula (French marigold): An allotetraploid ($2n = 4x = 48$) derived from natural hybridization between T. erecta and T. tenuifolia.
- Tagetes minuta (Mustered marigold): Tetraploid ($2n = 4x = 48$).
- Tagetes remotiflora: Polyploid taxon.
- Correct Option: Option 2 (Tagetes tenuifolia).
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