Selection of salinity tolerant rice lines with high quality and rich iron content

Tóm tắt

The demand for rice among producers and consumers is rising in tandem with the advancement of society. Good quality, micronutrient-rich, and cultivation-condition-adapted rice is concerned, especially under the impact of climate change. The study was conducted to select the salinity tolerant rice varieties and crossing rice population with good quality and rich iron content. The rice panel with 36 varieties and the BC3F3 population of OM5451*4/Pokkali were evaluated for salt tolerance by phenotypic screening and genotypic analysis, amylose content, and iron content by biochemical methods. The results showed that among 36 improved rice varieties, six varieties (OM6976, OM109, OM9577, SH1317, SH333-91, and OM108-200) were highly tolerant to the saline condition of 8 dS m-1 at the seedling stage. Meanwhile, OM5451, OM121, OM241-5, OM232, and OM238 had low amylose content and high iron content in both brown and white rice. In the OM5451*4/Pokkali population, among six tolerant lines, two elite lines (BC3F3-42 and BC3F3-53) were good at grain quality and iron content.

Từ khóa: Amylose content, iron content, quality, rice, salinity

Tải bài báo