The variation on some characters of upland rice where collected from farmers in Northern region of Thailand

Abstract

The purpose of this study was to evaluate the variation on some agronomic characters in upland ricewhere collected from some area in Northern region of Thailand Hui-namkhun Royal Project Development Center(HK), Chiangrai province and the area of Kaenoi Royal Project Development Center (KN), Chiang Mai province.The rice grains were planted under the environmental of growing in Phetchaburi Province. The completely random-ized design with 3 replications, was used in this study. The results showed that the variation on morphologicalcharacters of rice grains varies from yellowish to brown color on husk, and showed various on rice grain shapes. Thenumber of tillers per plant and the number of panicles per plant were statistically significant different. The appear-ance of the number of panicle per plant was lower than the number of tiller per plant was found both in HK and KN.However, these characters were significant correlated only in KN site. The taller varieties were correlated withgreater lodging, and low ability of tillering both in HK and KN sites.