ADAPTATION OF TEN NEW PADDY RICE GROWN ON DIFFERENT ENVIRONMENTAL CONDITIONS

Abstract

Assembly of high yield potential rice varieties, resistant to biotic and abiotic environmental stresses needs to be done to overcome the presence of stagnant genetic capacity.The research objective is to produce new varieties of adaptive paddy rice in various environments. The study used a split plot design, the growing environment as the main plot consists of two namely upland rice and lowland rice. As sub-plot were 12 rice genotypes.  The treatment in each environment is prepared using the Randomized Complete Block Design (RCBD).Variables observed that is  plant height;  the maximum number of shoots;  number of productive shoots;  long panicle;  the number of grains per panicle; the number of grains per panicle;  the number of empty grains per panicle;  weight of 1000 grains of grain; grain yield of each clump;  grain yield per hectare. Data were analyzed by variance, if there was a difference between mean median treatment, followed by Tukey Test at 5% level. The results showed an interaction between the environment and the genotype of rice. The eight genotypes of potential outcomes differed significantly between environments (lines B2, B3, F2, F3, F4, H1, H4, L2), and two new rice strains were not significantly different (B4 dan B7). Keywords: New rice strains, different environments ABSTRACTAssembly of high yield potential rice varieties, resistant to biotic and abiotic environmental stresses needs to be done to overcome the presence of stagnant genetic capacity.The research objective is to produce new varieties of adaptive paddy rice in various environments. The study used a split plot design, the growing environment as the main plot consists of two namely upland rice and lowland rice. As sub-plot were 12 rice genotypes.  The treatment in each environment is prepared using the Randomized Complete Block Design (RCBD).Variables observed that is  plant height;  the maximum number of shoots;  number of productive shoots;  long panicle;  the number of grains per panicle; the number of grains per panicle;  the number of empty grains per panicle;  weight of 1000 grains of grain; grain yield of each clump;  grain yield per hectare. Data were analyzed by variance, if there was a difference between mean median treatment, followed by Tukey Test at 5% level. The results showed an interaction between the environment and the genotype of rice. The eight genotypes of potential outcomes differed significantly between environments (lines B2, B3, F2, F3, F4, H1, H4, L2), and two new rice strains were not significantly different (B4 dan B7). Keywords: New rice strains, different environments Â