| This research aims to study the effect of planting dates on the variation of some important agronomic characteristics of photoperiod sensitive cultivars. The experiment was conducted at Nakorn Ratchasima Rice Research Centre during wet season 2011-2013 by using a split plot in RCB design with 3 replicates. Main plots consisted of 5 planting dates; May 5, June 5, July 5, August 5, and September 5. Sub plots consisted of 4 photoperiod sensitive rice cultivars; i.e. KDML105, RD45, RD6, and RD12. Some important agronomic characteristics were recorded. Data sets from each year were analyzed using a single site analysis. Treatment means were compared using a Duncan's Multiple Range Test (DMRT). The results showed that planting dates significantly affected some... |
