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Descriptor: Heading (days from seeding to 1st flowering) -wild (hdg_1stflow)

Number of days from seeding to first flowering. Observed in wild species.
Reproductive Stage
Crop Germplasm Committee approved
Data Type:
Numeric descriptor
Maximum Length:
Responsible Site:
International Rice Research Institute (IRRI)

Studies or environments

Distribution of Values for Heading (days from seeding to 1st flowering) -wild (hdg_1stflow)

RangeNumber of Accessions
0.00000 - 22.9000059
22.90000 - 45.800008
45.80000 - 68.7000081
68.70000 - 91.60000154
91.60000 - 114.50000395
114.50000 - 137.40000505
137.40000 - 160.30000409
160.30000 - 183.20000247
183.20000 - 206.1000037
206.10000 - 229.000008

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)