Internal requests (CIMMYT)
Maize DH service will be offered internally in CIMMYT according to the following guidelines, effective from 1st November 2016.
DH units and DH lines
- If a CIMMYT scientist (Indentor) requires 100 DH lines from a specific source population, it would be considered as one “DH Unit”. Accordingly, 500 seeds of each of the source populations should be submitted to the respective DH Operations Unit.
- From each DH unit, the target will be to produce at least 100 DH lines, provided the source population has no anthocyanin color inhibitor(s).
- If more than 100 DH lines are desired by an indentor from a specific source population, this must be clearly mentioned in the indent. For a minimum of 200 DH lines desired from a specific source population, seed for at least two DH units (2 x 500 seeds) should be submitted, and so on.
- If less than 100 DH lines are desired from any specific source population, a “half-DH unit” can be applied for, in which case 250 seeds should be submitted. For each such half-DH unit, the target number of DH lines will be at least 50.
For more information see: