The quality seed production in rice is ensured by different classes of seed involving Nucleus, Breeder, Foundation and Certified seed at different cropping stages attributing seed requirement of farmers at diversified and sustainable crop production of rice. In this regard, the maintenance breeding attributed as a foremost factor for wider spread of a particular rice variety. The chance of outcrossing and genetic drift were removed through sustained maintenance breeding to maintain the seed purity and thereby contributing to 30 to 40 per cent higher crop production. The present study involves the interpretation of relative performance of rice varieties ASD 16 and TPS 5 considering the breeder seed indent and area spread by the concerned variety. Over years of 2016-17 to 2020-21 . |
