| Autor: |
QIAO, Y. J., FAN, Y. Q., GUO, L. C., YANG, Z. P., HUANG, T. M., SUN, M., GAO, Z. Q. |
| Předmět: |
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| Zdroj: |
Applied Ecology & Environmental Research; 2023, Vol. 21 Issue 2, p1095-1107, 13p |
| Abstrakt: |
Rhizosphere bacterial community plays a crucial role in diverse biochemical processes, soil type modulates the composition of rhizosphere bacterial community, affects crop yields. In this study, four soil types including Grey clayey soil (GCS), Yellow clayey soil (YCS), Granitic sandy soil (GSS), and Purple clayey soil (PCS) in four rice growth stages were investigated for their impact on bacterial community related to rice rhizosphere and grain yield. The results showed that rice rhizosphere bacterial communities changed with both soil type and growth stage. Diversity index and OTUs number of bacterial community were more heavily influenced by soil type. The results of high-throughput sequencing showed that the bacterial phyla of Bacteroidetes, Chloroflexi, Firmicutes, Proteobacteria, Actinobacteria, Gemmatimonadetes and Acidobacteria were commonly inhabited in the rhizosphere of rice. Among them, Acidobacteria showed the greatest effect on grain yield (λ=0.71, R2=0.51). Based on unweighted pair-group method with arithmetic means (UPGMA) clustering and principal component analysis, the influence of soil type on bacterial community structure was higher than rice growth stage. The physical and chemical properties and bacterial community of soil under YCS treatment were the best. Soil properties had a significant positive effect on rice yield. Bacterial community had a certain effect on rice yield, but the effect did not reach the significant level. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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