Stimulation of Seed Germination by Humic Substances: On the Nature of the Phenomenon.

Stimulation of Seed Germination by Humic Substances: On the Nature of the Phenomenon.
Dokl Biol Sci. 2019 Jul;487(1):105-107
Authors: Shoba SA, Salimgareeva OA, Gorepekin IV, Fedotov GN, Stepanov AL
Abstract
The wheat seed germination and seedling growth, as well as the effect of humic substances on seed development, were compared using soils and sand as substrates. Russian Plain soils were found to considerably inhibit seed germination. Pre-sowing treatment with humic preparations resulted in a significant stimulation effect on seeds sowed into sod-podzolic soil, but not into sand. Considering a well-known phenomenon of soil allelelotoxicity, we have suggested that stimulation of seed development by humic substances is a result of seed protection by them against the allelotoxin inhibitory effect.
PMID: 31571076 [PubMed - in process]

Source: Doklady Biological Sciences - June 30, 2019 Category: Biology Authors: Shoba SA, Salimgareeva OA, Gorepekin IV, Fedotov GN, Stepanov AL Tags: Dokl Biol Sci Source Type: research