Unveiling genetic basis of seedling emergence from deep soil depth under dry direct- seeded conditions in rice (<i>Oryza sativa</i> L.).

ABSTRACT: Water scarcity and labor shortage pose significant challenges in rice farming. Direct-seeded rice (DSR) is an efficient method that conserves water, reduces labor costs, and allows for full mechanization of cultivation. However, variable planting depth in undulated field leading to deep/shallow sowing of rice seeds during mechanical sowing presents a major hurdle, as existing varieties lack tolerance to deep sowing. To address this, a mapping population comprising 150 F₄ lines, derived from MTU 1010 and AUS295, was developed and phenotyped for emergence from deep soil depth-related traits, including days of emergence (DE), percent germination (PG), mesocotyl length (ML), and coleoptile length (CL). The correlation revealed that DE has a significant negative correlation with PG,

SUBMITTER: Mishra V 

PROVIDER: S-EPMC11814172 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature