Effects of exogenous auxin on yield in foxtail millet (Setaria italica L.) when applied at the grain-filling stage.

ABSTRACT: Foxtail millet (Setaria italica L.) is of high nutritious value, which is an important crop in arid and semi-arid regions. The objective of this experiment was to explore the effects of the synthetic auxin naphthalene acetic acid (NAA) on the physiological processes of foxtail millet, and to provide a theoretical basis and technical approaches for its efficient use in millet cultivation. Two foxtail millet varieties ('Jingu 21' and 'Zhangzagu 5') were treated with six concentrations of NAA from 0-144 mg L^-1 at the grain-filling stage in field experiments. The photosynthetic pigment contents, gas exchange parameters, chlorophyll fluorescence parameters, and grain yield were measured in foxtail millet. The results showed that low concentrations of NAA (18-36 mg L^-1

SUBMITTER: Feng Z 

PROVIDER: S-EPMC9846363 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature