Journal
ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
Volume 71, Issue 6, Pages 478-488Publisher
TAYLOR & FRANCIS AS
DOI: 10.1080/09064710.2021.1921837
Keywords
Super absorbent polymer; barley; rhizosphere; drought; microbiome structure
Categories
Ask authors/readers for more resources
The addition of potassium polyacrylate can increase soil water retention and alleviate the negative effects of drought on barley plants. Additionally, it can alter the composition of the barley rhizosphere bacterial community.
Our study aimed to determine the effect on barley (Hordeum vulgare L.) of adding potassium polyacrylate to a sandy soil under normal watering condition and drought. We focused on morphological and physiological characteristics of barley and its rhizosphere bacterial community structure using Illumina Miseq sequencing. It was found that under normal watering condition (70% of soil water holding capacity (WHC)), the soil water retention increased with the SAP addition to the soil. Barley plant height and weight, leaf relative water content and protein content decreased under drought (35% of soil WHC), the addition of SAP eliminated the negative effect of drought on plants, the proline content was reduced from 2.71 mu g g(-1) leave dry weight with stressed plants to 0.99 mu g g(-1) with only 0.2% of SAP. The barley rhizophere bacterial community was affected by drought. Changes in relative abundance were noticed at both phyla and OTU level. The SAP addition (0.8%) shifted the barley rhizophere bacterial community to become in part more similar to that of the normal watering condition. Also, we found that the SAP addition had a side effect itself on the barley rhizosphere bacterial community other than its capacity of water holding.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available