The aim of this experiment was to study the growth and yield
of Chinese hybrid rice varieties planted in Battambang, Cambodia and to provide
reference for their extension and application in Cambodia. [Method] The
experiment was conducted in the dry season of 2012 (January-April). Three Chinese
rice varieties viz. Zaoyou362, Teyou362, Guiyuanyou362 and one local variety
(Senpidao) were planted in Battambang, Cambodia to compare their agronomic
traits and yield. [Result] There was significant difference in plant height
among all rice varieties. Senpidao grew shorter than the other varieties, but
its tiller number was higher than the hybrid rice varieties. Grains per panicle
and panicle and panicle length of the hybrid rice were significantly higher
than that of Senpidao and Teyou362 and Guiyuanyou362 showed the highest grains
per panicle and panicle length, respectively. The 1000-grain weight of Zaoyou
362 was hgher than that of Teyou362, Guiyuanyou362 and Senpidao. The yields of
Teyou362 and Guiyuanyou362 were significantly higher than both of Zaoyou3362
and Senpidao. Furthermore, the grains per panicle and panicle length were
significantly correlated with the yield of rice. [conclusion] Three Chinese
hybrid rice varieties were suitable for growing in Cambodia and their yields
increased by 23-38% as compared to Senpidao rice under Toul Samrong soil
condition in dry season of Battambang, Cambodia.
