Study on the genetic bio-diversity of tobacco 39 cultures including Burley tobacco 16 cultivars 15 and 8 local and wild cultivars respectively, was conductive at Maejo University. 20 markers were employed for identification the genetic diversity.

The study aimed to compare the effects of various size of simulated paddy field on growth and yield of rice cv. Sangyodphatthalung and to compare the efficiency of simulated paddy field with true paddy field reported by Rice Department.