Effects of nitrogen topdressing and paclobutrazol at different stages on spike differentiation and yield of winter wheat.

ABSTRACT:

Background

Optimal nitrogen (N) application and plant growth regulators can improve wheat productivity. This can help to improve yield level and ensure food security with limited resources in the Huang-Huai-Hai Plain of China (HPC).

Methods

A 2-year field experiment was conducted using a randomized block design with four treatments (TS-N topdressing at pseudostem erection stage ; TPS-N topdressing combined with paclobutrazol application at pseudostem erection stage; TJ-N topdressing at jointing stage; TPJ-N topdressing at combined with paclobutrazol application at jointing stage) in 2011-2013.

Results

The grain number per ear, thousand kernel weight and yield for the TJ and TPJ treatments were higher than those of the TS and TPS treatments. Grain number per ear, yield

SUBMITTER: Li D 

PROVIDER: S-EPMC8638589 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature