Evaluation of Agronomic Traits
According to standard commercial practices, mutants and their parents were grown in a paddy field under natural conditions at an experimental farm in Fuzhou, China. All plants were grown with a spacing of 13.3 cm between plants within each row and 26.4 cm between rows. Field management essentially followed normal agricultural practices, and the amounts of N, P2O5 and K2O applied were 127.5 kg/hm2, 45.0 kg/hm2, and 30.0 kg/hm2, respectively.
Ten random plants from each line were chosen to measure the plant height, panicle length, number of effective panicles, spikelet number per panicle, seed setting rate and 1000-grain weight, grain length, grain width, and grain yield per plant using conventional methods at maturity in 2020.