Work

Comparative analysis of Thai indigenous rice on growth, yield, and leaf nutrient under salinity conditions

Year: 2025

Type: article

Abstract: Salinity is one of the most detrimental environmental stresses, significantly reducing rice yield and quality. Salinity tolerant varieties are crucial for rice production in Southern Thailand. The objectives of this study were: 1) to examine the response on growth, yield, and leaf nutrient composition of 10 indigenous rice varieties from Nakhon Si Thammarat Province under salinity conditions, and 2) to identify varieties capable of surviving and producing yield under saline conditions. The experiment was designed as a factorial arrangement in a completely randomized design with two factors. The first factor was the salinity level of irrigation water, consisting of 0.0%, 0.4%, and 0.8% salinity. The second factor was the indigenous rice varieties, which included Dok Kha, Hom Bon, Dawk Pa-yawm, Luk Lai, Leb Nok, Leuang, Banpeang, Chorlumpee, Sang Yot (Tha Sala), and Sang Yot (Bang Khan). Significant differences were observed across salinity levels and among rice varieties for most traits. All rice varieties experienced substantial reductions in growth when exposed to higher salinity levels. The principal component analysis revealed that rice varieties exhibited varying responses in agronomic traits, yield traits, and leaf nutrients under different salinity conditions. Based on their ability to survive in saline environments and yield production, Luk Lai, Leb Nok, and Sang Yot (Bang Khan) are recommended for farmers for future production on saline soils.

Source: Frontiers in Agronomy

DOI: 10.3389/fagro.2025.1568758

Authors: Thanet Khomphet, Yong Zhao

Institutions: Walailak University, Shanghai Ocean University

Language: English

Topic: Rice Cultivation and Yield Improvement

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,077