Hybrid Development And Testing
Customer oriented breeding programmes are designed with clear end product in mind.
A clear protocol is developed & followed at Super seeds for testing of hybrids in different stages. The following trials are conducted to judge the performance of hybrids.
- Preliminary trials
- Initial trials
- Advanced trials
- Strip Tests
- On farms trials
|Sl No||Trail||No. of Hybrids for testing||Replications||Criterion for Promotion||Objective||No. of locations|
|1.||Preliminary trials||400-600||Mostly non-Replicated||Visual evaluation for desirable characters disease & pest resistance and yield||Conducted basically to screen & cull out the less potential hybrids||Only station trials at R & D|
|2.||Initial trials||100-120||Min 3 Reps||All economic parameters including disease & pest resistance and yield||Performance of hybrid in a particular location is judged||Station trials + 2 to 3 important locations|
|3.||Advanced trials||20-30||Min 3 Reps||All economic parameters including disease & pest resistance and yield||Stability of the hybrid over locations seasons is judged and a clear understanding of reaction to diseases and pests is developed||Conducted in 4-6 locations based on availability of the facilities|
|4.||Strip tests||10-15||Planted in strips of 5 x 25 m in the farmers field along with the checks for comparison of hybrids||Local Farmers requirement is taken into consideration||Performance of the hybrids in the actual farmers’ fields under his own management is judged||Conducted in 10-12 farmers’ fields under the actual management of the farmer|
|5.||On farm trials||2-3||Planted in larger area of about 1-2 acres in the farmers field||Local Farmers requirement is taken into consideration||Performance of the hybrids in the actual farmers’ fields under his own management is judged||Final stage of testing. wide area adoptability of the hybrid is tested in 50 to 100 farmers’ fields|
Multi location testing centers of Super Seeds.Click on Image to View Large