This paper presents the evolution of major practices in Philippine rice production over the last 100 years. These practices evolved out of the changes in the varieties introduced and planted by Filipino farmers, which subsequently altered the manner by which production and postharvest operations were done. Varieties were introduced by rice scientists in three major periods: the pre-Green Revolution era, the Green Revolution (1966-1988) period, and the post-Green Revolution (1989 to the present). As varieties changed over time, farmers' practices and technologies also changed so as to attain the maximum yield potential of the varieties and to realize the goals of higher productivity, greater efficiency, and recently, environmental sustainability.