International Journal of Life Science and Agriculture Research

The objective of this study was to determine the variation in agronomic characters of functional upland red rice and black rice promising lines grown in the dryland area of medium altitude in Central Lombok, Indonesia. The field experiment was carried out from May to August 2022, which was arranged according to Randomized Completely Block Design. The genetic materials tested were 15 genotypes consisting of six lines of F5 red rice, five lines of black rice, three parental genotypes, and one comparison variety of upland red rice. Each genotype was replicated in three blocks. The agronomic characters observed included plant height, flowering date, harvesting date, number of productive tillers (or panicles), panicle length, number of filled and unfilled grains per panicle, weight of 1000 grains, grain weight per clump, and grain yield potential. The results showed that there was a fairly high agronomic variation among those 15 functional upland rice genotypes especially on plant height, flowering date, harvesting date, panicle number per clump, filled grain number per panicle, weight of 1000 grains, weight of grains per clump, and grain yield potential. These findings indicate that there are some desirable traits of those agronomic characters that could be used for breeding new superior functional upland red and black rice varieties adaptable on the dryland of medium altitude in Central Lombok, Indonesia, or elsewhere. 

agronomic variation; functional rice; red rice; black rice; dryland; medium altitude

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