Productivity and Agronomic Efficiency of Inundation Tolerance Rice in the Swampland: A Review

Abstract

Swampland is one of the potential agroecosystems of rice production in Indonesia, but it is classified as marginal in terms of unpredictable inundation, primarily due to global climate change impact. Submergence-resistant variety’s high-yielding and efficient input are one of the efforts to overcome these constraints. The review aims to explore information on the availability and potentiality of immersion-resistant varieties, the efficiency of cultivation technology, and the availability and potentiality of local rice as a source of genes in creating immersion-resistant varieties. The review method is a reference study of different research results. The review results show that five varieties of swampland rice are mainly assembled to withstand immersion in all vegetative phases, namely for six days (Inpara 3) and fourteen days (Inpara 4-5, Inpari 29-30). Based on the Relative Agronomic Efficiency (RAE) parameter, cultivation technology is available. However, information on the research results and its implementation on these five varieties and other high-yielding rice varieties in the swampland is still limited. Sixteen local accessions of inundation tolerance have been identified. Further research is needed on different varieties of immersion resistance, RAE parameters-based cultivation technology, and new immersion-resistant varieties using available local varietal gene donors. This way the availability of effective technology and its dissemination efforts will have the opportunity to be adopted by the stakeholders, thus increasing their productivity and income.