DETERMINATION OF SELECTION CRITERIA TO INCREASE LOCAL UPLAND RICE YIELDS
SAKKA SAMUDIN *
Department of Agrotechnology, Agriculture Faculty of Tadulako University, 94118, Palu, Indonesia
. MAEMUNAH
Department of Agrotechnology, Agriculture Faculty of Tadulako University, 94118, Palu, Indonesia
USMAN MADE
Department of Agrotechnology, Agriculture Faculty of Tadulako University, 94118, Palu, Indonesia
ANDI ETE
Department of Agrotechnology, Agriculture Faculty of Tadulako University, 94118, Palu, Indonesia
. MUSTAKIM
Laboratory of Seed Science and Technology, Agriculture Faculty of Tadulako University, 94118, Palu, Indonesia
. YUSRAN
Laboratory of Seed Science and Technology, Agriculture Faculty of Tadulako University, 94118, Palu, Indonesia
. EFFENDY
Department of Agriculture Economics, Agriculture Faculty of Tadulako University, 94118, Palu, Indonesia
*Author to whom correspondence should be addressed.
Abstract
The success of plant breeding programs in character improvement depends on the genetic information of the managed population. Selection was one of the activities that determined such success, so direct and indirect selection needed to be known before character improvement was done. To increase the local upland rice yields of Central Sulawesi, the current research aimed to determine the criteria for several characters that could be used in direct or indirect selection. This research was done in Tamarenja Village, Sindue Sub-Regency, Donggala Regency from March to September of 2019. This experiment used 12 cultivars that were purified in 2017. The method of research used a Randomized Block Design. Results showed that the number of leaves, flowering age, and grain thickness exhibited a positive and significant genotypic correlation to the yield, meaning one could use these as indirect selection criteria to increase upland rice yields. One could use the amount of grain per panicle in increasing local upland rice yields as the selection criteria directly.
Keywords: Selection, path analysis, local upland rice cultivar, direct