Effect of Foliar Application of Various Nitrogen Forms on Starch Accumulation and Grain Filling of Wheat (Triticum aestivum L.) Under Drought Stress.

ABSTRACT: Foliar nitrogen (N) fertilizer application at later stages of wheat (Triticum aestivum L.) growth is an effective method of attenuating drought stress and improving grain filling. The influences or modes of action of foliar application of various nitrogen forms on wheat growth and grain filling need further research. The objective of this study was to examine the regulatory effects of various forms of foliar nitrogen [NO₃ ^-, NH₄ ⁺, and CO(NH₂)₂] on wheat grain filling under drought stress and to elucidate their underlying mechanisms. The relative effects of each nitrogen source differed in promoting grain filling. Foliar NH₄ ⁺-N application notably prolonged the grain filling period. In contrast,

SUBMITTER: Lv X 

PROVIDER: S-EPMC8030621 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature