Tidal swamp tolerant rice lines: climate change adaptive varieties

Abstract

Weather phenomenon and erratic rainfall are some of the symptoms of global climate change. These challenges attempt to increase rice production in tidal swamps or submerge land in the long term. An effort to form tolerant rice varieties to stress in tidal swampland has been carried out through crossing between superior varieties and local rice. This study aims to analyze the results of several promising rice lines and search for the potential rice lines to be released as new tidal swampland varieties. The experiment was carried out in tidal swamp rice area centers, in Karang Agung, South Sumatra, Balandean, South Kalimantan and in Indramayu, West Java Indonesia. Fourteen rice lines and four check varieties namely IR42, IR64, Inpara 8 and Inpara 9 were used. Field experiments used a Randomized Complete Block Design (RCBD) with four replications. Results showed that the environment, genotype, and interaction between environmental genotypes had a significant influence on all characters. The appearances of the lines were superior in Karang Agung and less well on Balandean. The yield was positively correlated with plant height, the number of productive tillers and filled grains per panicle. There were five lines with a high yield equivalent to the best check varieties, namely Inpara 9, IR 102860-8: 66-BB, IR 102860-8: 42-BB, IR 101465-8: 23, IR 101465-5: 25, and B13522E-KA-5-B.

Karakterisasi Padi Beras Hitam Beliah Asal Kabupaten Bengkayang Kalimantan Barat Pada Lahan Sawah Pasang Surut

“…Penyebab gabah hampa adalah faktor genetik atau lingkungan (Sukristiyonubowo et al, 2019;Rusdiansyah et al, 2015;Widyaningtias et al, 2020), Umur tanaman padi Beliah adalah 186 HST yang tergolong sangat Panjang. Sementara karakter padi VUB salah satunya adalah umur tanaman antara 100-135 HSS (Lestari et al, 2020;Phapumma et al, 2020).…”

Rice Cultivation of Superior Variety in Swamps to Increase Food Security in Indonesia

“…The best comparison is Inpara 9. This variety has high parameters of the number of productive puppies and short seeds that have similarities with the character of Inpara 9 (Lestari et al, 2019). Successful rice production in swampland requires planting materials from superior variety adapted to the environment or ecosystem (Chozin et al, 2019).…”

Application of bio-silicic acid to improve yield and fertilizer efficiency of paddy on tidal swamp land

“…Tidal swamp land has good prospects to be developed into productive agricultural land with proper management through the application of appropriate technological innovations. The main limiting factors for the development of tidal swamp land are low soil fertility; acid soil reactions; the presence of pyrite (FeS); high levels of Al, Fe, Mn, and organic acids; P deficiency; and poor bases content of Ca, K and Mg; as well as inhibition microbial activity (Lestari et al, 2019;Arsyad et al, 2014). In tidal swamp land, the soils have a low available Si due to a very low soil pH and the fact that Si fertilization is not a common practice yet (Siregar & Yusuf, 2020).…”