*Department of Vegetable Crops, PAU, Ludhiana
*Director, University Seed Farm, Punjab Agricultural University, Naraingarh
Department of Plant Breeding, Genetics and Biotechnology, Punjab Agricultural University, Ludhiana
Safe isolation distance is essential for production of quality hybrid seed in rice. It was found that an isolation distance of 50 m from foreign rice pollen was optimum as it resulted in negligible pollen shedders which were in accordance with seed production standards. Furthermore, a crop barrier can successfully be used to check contamination by foreign pollen. A combination of crop barrier and an isolation distance could help to economise space utilization for hybrid seed production by reducing the isolation distance under Punjab conditions.
Crop barrier, hybrid rice, isolation distance, pollen shedders
