A foliage leaf of a plant, as opposed to a seed leaf or cotyledon.
- Plants overexpressing both R and GL1 produce many trichomes on cotyledon and hypocotyl surfaces and more trichomes on true leaves than plants overexpressing R alone.
- In the study of leaf growth and flowering time, pre-cultivation ended after 14 d when the plants had two true leaves with petioles.
- Sectoring events were observed in roots, cotyledons and the first true leaves, but no systematic description of sector frequency, sector size or any other parameter was undertaken.
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