02207naa a2200253 a 450000100080000000500110000800800410001902400500006010000170011024501040012726000090023150000300024052014450027065000200171565000100173565300230174565300160176865300250178465300280180970000180183770000220185570000200187777300560189721396122022-02-03       2024    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1590/1519-6984.2530832DOI1 aSILVA, K. J.  aSorghum hybrids grown in hydroponics contrast for phosphorus use efficiency.h[electronic resource]  c2024  aPublicado em 2 fev. 2022.  aPhosphorus (P) use efficiency is crucial for sorghum production. P acquisition efficiency is the most important component of P use efficiency. The early-stage evaluation of plant development is a useful tool for identifying P-efficient genotypes. This study aimed to identify sorghum hybrids that are efficient in P use efficiency and assess the genetic diversity among hybrids based on traits related to P acquisition efficiency. Thus, 38 sorghum hybrids and two inbred lines (checks) were evaluated under low and high P in a paper pouch system with nutrient solution. Biomass and root traits related to P efficiency were measured. There was no interaction between genotypes and P levels concerning all evaluated traits. The biomass and root traits, except root diameter, presented smaller means under low P than high P. Efficient and inefficient hybrids under each P level were identified. The genetic diversity assessment grouped these genotypes in different clusters. The hybrids AG1090, MSK326, AG1060, 1G100, AS 4639, DKB 540, and DKB 590 were superior under low-P and high-P. Hybrids SC121, 1236020 e 1167017 presented the lowest means than all other hybrids, under both conditions. The evaluated hybrids showed phenotypic diversity for traits related to P acquisition, such as root length and root surface area, which can be useful for establishing selection strategies for sorghum breeding programs and increasing P use efficiency.  aSorghum Bicolor  aSorgo  aEstresse abiótico  aFenotipagem  aMorfologia radicular  aVariabilidade genética1 aSANTOS, C. V.1 aMENEZES, C. B. de1 aSOUSA, S. M. de  tBrazilian Journal of Biologygv. 84, e253083, 2024.