Open AccessQualidade física de grãos beneficiados de cultivares de arroz produzidos em diferentes níveis de adubação
Author(s) -
Amanda Müller,
Paulo Carteri Coradi,
Jonatas Ibagé Steinhaus,
Guilherme Abreu Coelho de Souza,
Letícia de Oliveira Carneiro,
Lanes Beatriz Acosta Jaques,
Mara Grohs
Publication year - 2020
Publication title -
ciência e natura
Language(s) - English
Resource type - Journals
eISSN - 2179-460X
pISSN - 0100-8307
DOI - 10.5902/2179460x40622
Subject(s) - cultivar , human fertilization , yield (engineering) , crop , horticulture , agronomy , chemistry , mathematics , biology , materials science , metallurgy
Rice is one of the most cultivated cereals in the world and the increase in crop yield is associated with cultivars and levels of soil fertilization, and may suffer changes in grain quality after processing. The objective of this work was to evaluate the physical quality of grains of rice benefited as polished and integral of cultivars IR 424 RI and IR 431 CL as a function of different levels of fertilization. After the harvest, the grains were subjected to the debarking and polishing processes. Quality analysis was performed according to the physical classification of rice. The cultivar IR 424 RI obtained higher values of yellow, burned and plastered grains, and in the cultivar IR 431 LC more broken, chopped and stained grains were observed. The average yield of polished rice of cultivar IR 431 CL was 44.54% and cultivar IR 424 RI was 56.80%. Meanwhile, the average yield of whole rice of cultivar IR 431 CL was 65.02% and cultivar IR 424 RI was 73.08%. The increase in the fertilization levels of the rice influenced positively on the yield of whole grains, but did not present satisfactory results regarding the physical quality.