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Descriptor: Panicle type (panicle attitude of branches)(pre-2007) (pty_pre2007)

Panicles are classified according to their mode of branching, angle of primary branches and spikelet density. Recorded at reproductive stage. Observed in all species.
Reproductive Stage
Crop Germplasm Committee approved
Data Type:
Alpha/numeric descriptor
Maximum Length:
Responsible Site:
International Rice Research Institute (IRRI)

Studies or environments

Distribution of Values for Panicle type (panicle attitude of branches)(pre-2007) (pty_pre2007)

CodeDefinitionNumber of Accessions
1 Compact (1)12784
2 Compact (2)771
3 Compact (3)4964
4 Intermediate (4)1524
5 Intermediate (5)58696
6 Intermediate (6)1663
7 Open (7)5901
8 Open (8)534
9 Open (9)14795
999 Mixture51

International Rice Genebank Germplasm Distribution and Exchange Policy

IRRI continues the free international exchange of germplasm, in accordance with the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA). We provide rice in small quantities to any entity or establishment for research, breeding, or training for food and agriculture purposes; free of charge. At the same time, we gratefully receive seed contributions to add to our collection.

The procedure for acquiring seeds from IRRI are as follows:
1. Read, study and comply with Standard Material Transfer Agreement(SMTA).
2. Inquire, search and choose accessions through GRIN-Global or Genesys websites.
3. Submit requests electronically through the public websites (refer to #2)