Gravity Reduced Nitrogen Uptake via the Regulation of Brace Unilateral Root Growth in Maize Intercropping.

ABSTRACT: Water, nutrient, light, and interspecific facilitation regulation of soil physicochemical properties and root morphology modulate nitrogen (N) uptake in cereal and legume intercropping systems. However, maize root morphological plasticity and N uptake capability response to gravity in the intercropping system remains to be determined. In this study, maize was grown under 20 cm (I₂₀), 40 cm (I₄₀), and 60 cm (I₆₀) of narrow row spacing in an intercropping system (maize-soybean strip relay intercropping) and equal row spacing of monoculture (M) in a 2-year field experiment. As a supplementary for the field experiment, maize root barrier and plant inclination experiments were conducted. Plant inclination, brace root morphology, N uptake, indole-3-acetic acid (I

SUBMITTER: Chen G 

PROVIDER: S-EPMC8450519 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature