Salinity caused losses to rice farmers because it becomes an obstacle to rice growth and decrease a productivity. The use of superior rice variety is an effort to rice produce optimally. In order to examined and compared several rice varieties to salinity stress based on agronomic, chlorophyll content, and yield characters. A factorial completely randomized design was used in this study, the first factor was rice varieties consisting of Banyuasin, Inpari 30, and Inpari 34, while the second factor was salt concentration consisted of non-saline and 8 dS m−1. There were six combination treatments and repeated three times. The results showed that Inpari 34 had a tallest plant compared to other varieties in non-saline and 8 dS m−1. Banyuasin and Inpari 30 had wider leaves, the number of panicles per clump, and higher harvest index compared to Inpari 34, however Inpari 34 produce more grain per panicle compared of two varieties. Inpari 30 grown in 8 dS m−1 had a highest chlorophyll a-b compared to the other treatment. Inpari 30 had the best agronomic performance indicated by increases of leaf area, number of panicles per clump, harvest index, and content of chlorophyll a-b.

Silica is beneficial nutrients that affect rice plants to be tolerance to biotic and abiotic stresses, include saline conditions. The aim of this research was to examine the effect of silica nutrients to the productivity of local rice accession PH 1 under saline conditions. The research used a factorial completely randomized design. The first factor is levels of salinity include non-saline, 4 dS m−1, 8 dS m−1, and 12 dS m−1. The second factor is the addition of silica nutrients per kg soil include 300 mg, 450 mg, and 600 mg. Salinity and the addition of silica nutrients were not significantly different to root canopy ratio, plant growth rate, and harvest index. However, the addition of silica nutrients up to 600 mg affects increasing of productivity up to 1.18 tonnes ha−1. There is an interaction between salinity and the addition of silica nutrients to the number of productive tillers, when the plant was given saline conditions 4 dS m−1 to 8 dS m−1, plant needs the addition of silica nutrients as much as 450 mg to 600 mg. While increasing the saline conditions up to 12 dS m−1 plant needs the addition of silica nutrients as much as 300 mg.