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Oryza minuta J.S. Presl. Ex. C.B. Presl.

  • Distribution
    Distribution
  • Habitat
    Habitat
  • Plant
    Plant
  • Seed
    Seed

Explanations

Genome designation
BBCC
Chromosome number
Tetraploid, 2n=48
Distribution
Philippines and Papua New Guinea (Fly River Delta)
Key characteristics
Scrambling, stoloniferous plant, basal panicle branches one or few, not forming a whorl; spikelets <4.7mm and <2.0mm wide.
Habitat
In semi-shaded or occasionally shaded of forest margins and sago swamps. Along streams and in other wet areas where soil is clay or loamy.
Potentially useful traits
Disease resistance.
Notes
This small seeded perennial is closely related to O. officinalis. In the Philippines a population exists where it is sympatric with O. officinalis (Panaud, 2007).
References
Amante-Bordeos A., L.A. Sitch, R. Nelson, R.D. Dalmacio, N.P. Oliva, H. Aswidnoor and H. Leung. 1992. Transfer of bacterial blight resistance from the tetraploid wild rice Oryza minuta to cultivated rice, Oryza sativa. Theor. Appl. Genet. 84:345-354
Panaud, O. 2007. Trip report on collection of O. minuta in the Philippines.
Tateoka, T., and J. V. Pancho. 1963. A cytotaxonomic study of Oryza minuta and O. officinalis. Bot. Mag. Tokyo 76:366-373.