Assessment of Drought Tolerance Degree (DTD) method as a reliable tool for early-stage screening for drought tolerance in indica rice.

ABSTRACT: Drought stress poses a significant threat to rice production, particularly in indica cultivars that form the staple diet for a large portion of the world's population. Efficient and reliable screening methods are essential to accelerate the development of drought-tolerant rice varieties. The objective of the study was to assess and validate the efficacy of the Drought Tolerance Degree (DTD) method for early-stage drought tolerance screening in a diverse population of 118 doubled haploid (DH) indica rice lines and their parents. Plants were subjected to controlled severe drought stress under pot culture in a net house environment, and drought responses were assessed using DTD method alongside key physiological traits including relative water content (RWC), chlorophyll content index, leaf ro

SUBMITTER: Singh SK 

PROVIDER: S-EPMC12642344 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature