Gene action that controlling some characters on F2 generation derived from the crossing of Silopuk red rice with Fatmawati superior variety

Abstract

An F2 population is a segregated population where recombinant characters emergence. To selection these recombinant characters, it is important to know their genetic parameters. The purpose of this study was to determine the action of genes controlling the number of productive tillers, the total number of grains per panicle, the percentage of grain-filled per panicle, weight of one thousand filled grains and total grain weight per hill of F2 generations. Silopuk cultivar with red rice characteristic but has weakness such as long harvest age, high plants, and medium grain size, while superior Fatmawati has early maturity, semidwarf plant n thickness, big grain size, and white grain color. The character can be improved by the plant breeding method using hybridization. The research method used is the experimental method without replication with the head to row method [clump to row] and analyzed using the analysis of Skewness and Kurtosis. The result of the crossing of these varieties is expected to obtain large and heavy grain size, early age as Fatmawati and red rice as Silopuk. Z skewness test results and Z test kurtosis on F tow generation for all characters observed are controlled by many additive genes. The characters that have additive gene action such as plant height, panicle length and total grain size can be used as selection criteria for generation F three.