Year: 2022
Type: article
Abstract: ABSTRACT: This study quantified K uptake kinetic parameters in grass species Paspalum notatum, Paspalum urvillei and Axonopus affinis to associate them with growth. Ten milliliters (10 ml) of nutrient solution were collected in two-liter pots - with five repetitions in 24 hours - in order to determine K concentrations in the samples. Shoot and root dry matter, root length, volume, diameter and surface area, as well as kinetic parameters associated with nutrient uptake (Vmax, Km, Cmin and I) were determined. Species P. notatum was the one presenting the highest root, shoot and total dry matter production, as well as the highest root volume. P. urvillei recorded the highest K content, which may be associated with thinner roots and greater root surface area. A. affinis recorded the highest Vmax value, which led to greater K uptake efficiency.
Source: Ciência Rural
Authors: Gracieli Fernandes, Anderson César Ramos Marques, Bruna San Martin Rolim Ribeiro, Paula de Souza Cardoso, Eduardo Lago Tagliapietra, Eduardo Daniel Friedrich, Patric Scolari Weber, Amanda Veridiana Krug, Matheus Severo de Souza Kulmann, Betania Vahl de Paula, Fernando Teixeira Nicoloso, Gustavo Brunetto
Institution: Universidade Federal de Santa Maria
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $133
OpenAlex ID: W4225948331