Water Stress Alters Morphophysiological, Grain Quality and Vegetation Indices of Soybean Cultivars.

ABSTRACT: Rainfall is among the climatic factors that most affect production, as in the Brazilian Cerrado. Non-destructive and automated phenotyping methods are fast and efficient for genotype selection. The objective of this work was to evaluate, under field conditions, the morphophysiological changes, yield, and grain quality of soybean (Glycine max L. Merrill) under water stress in the Brazilian Cerrado. The plots comprised six soybean cultivars and the subplots of four water regimes, corresponding to 31, 44, 64 and 100% of crop evapotranspiration replacement. The experiments were conducted from May to September 2018 and 2019. An irrigation system with a bar of sprinklers with different flow rates was used. Gas exchange, vegetation indices (measured using a hyperspectral sensor embedded in a dron

SUBMITTER: Tavares CJ 

PROVIDER: S-EPMC8880803 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature