干旱区生态环境知识资源中心(Arid): Improved drought tolerance in Festuca ovina L. using plant growth promoting bacteria

Arid

DOI	10.1007/s40333-023-0015-6
	Improved drought tolerance in Festuca ovina L. using plant growth promoting bacteria
	Rigi, Fateme; Saberi, Morteza; Ebrahimi, Mahdieh
通讯作者	Saberi, M
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2023
卷号	15 期号:6 页码:740-755
英文摘要	Numerous ecological factors influence a plant's ability to live and grow, in which dryness is a substantial constraint on plant growth in arid and semi-arid areas. In response to a specific environmental stress, plants can use the most effective bacteria to support and facilitate their growth and development. Today, plant growth promoting rhizobacteria (PGPR) is widely used to reduce drought stress on plant growth. In this study, the effects of drought on Festuca ovina L. germination, growth, and nutrient absorption were investigated using PGPR in a factorial test with a completely random design under four water regimes. Soil water content was kept at 100% FC (field capacity), 70% FC (FC), 50% FC, and 30% FC. The treatments were inoculated with Azotobacter vinelandii, Pantoea agglomerans+Pseudomonas putida, and a mixture of bio-fertilizers. Results showed that the effects of drought stress were significantly reduced (P<0.05) when A. vinelandii and P. agglomerans+P. putida were used separately, however, the combined treatment of bio-fertilizers had a greater influence on seed germination than the single application. P. agglomerans+P. putida under 30% FC condition resulted in higher increases in stem, root length, and plant dry biomass. The highest uptake of nutrients was observed for the combined treatment of bio-fertilizers under 30% FC condition. Therefore, the use of A. vinelandii and P. agglomerans+P. putida, applied separately or combined, increased tolerance to drought stress in F. ovina by increased germination indices, dry weight, stem length, and root length. Because of the beneficial effects of PGPR on the growth characteristics of plants under drought conditions and the reduction of negative effects of drought stress, inoculating F. ovina seeds with Azotobacter and Pseudomonas is recommended to improve their growth and development characteristics under drought conditions. PGPR, as an affordable and environmentally friendly method, can improve the production of forage in water-stress rangelands.
英文关键词	bio-fertilizers element uptake drought stress rangeland water scarcity
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001011252700007
WOS关键词	ACC-DEAMINASE ; SNAP BEANS ; STRESS ; YIELD ; RHIZOBACTERIA ; PSEUDOMONAS ; GERMINATION ; SALINITY ; TRAITS ; FUNGI
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397186
推荐引用方式 GB/T 7714	Rigi, Fateme,Saberi, Morteza,Ebrahimi, Mahdieh. Improved drought tolerance in Festuca ovina L. using plant growth promoting bacteria[J],2023,15(6):740-755.
APA	Rigi, Fateme,Saberi, Morteza,&Ebrahimi, Mahdieh.(2023).Improved drought tolerance in Festuca ovina L. using plant growth promoting bacteria.JOURNAL OF ARID LAND,15(6),740-755.
MLA	Rigi, Fateme,et al."Improved drought tolerance in Festuca ovina L. using plant growth promoting bacteria".JOURNAL OF ARID LAND 15.6(2023):740-755.