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Journal Article

Journal Article

Plant Growth Promoting Rhizobacteria: A Critical Review  [2011]

BS Saharan;

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Plant growth-promoting rhizobacteria (PGPR) are naturally occurring soil bacteria that aggressively colonize plant roots and benefit plants by providing growth promotion. Inoculation of crop plants with certain strains of PGPR at an early stage of development improves biomass production through direct effects on root and shoots growth. Inoculation of ornamentals, forest trees, vegetables, and agricultural crops with PGPR may result in multiple effects on early-season plant growth, as seen in the enhancement of seedling germination, stand health, plant vigor, plant height, shoot weight, nutrient content of shoot tissues, early bloom, chlorophyll content, and increased nodulation in legumes. PGPR are reported to influence the growth, yield, and nutrient uptake by an array of mechanisms. They help in increasing nitrogen fixation in legumes, help in promoting free-living nitrogen-fixing bacteria, increase supply of other nutrients, such as phosphorus, sulphur, iron and copper, produce plant hormones, enhance other beneficial bacteria or fungi, control fungal and bacterial diseases and help in controlling insect pests. There has been much research interest in PGPR and there is now an increasing number of PGPR being commercialized for various crops. Several reviews have discussed specific aspects of growth promotion by PGPR. In this review, we have discussed various bacteria which act as PGPR, mechanisms and the desirable properties exhibited by them.
From the journal
Life Sciences and Medicine Research
ISSN : 1948-7886

Bibliographic information

Type:
Journal Article
In AGRIS since:
2012
Volume:
2011
Issue:
1
Start Page:
LSMR
End Page:
21-319
Publisher:
AstonJournals
All titles:
"Plant Growth Promoting Rhizobacteria: A Critical Review"@eng
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Bibliographic information

Type:
Journal Article
In AGRIS since:
2012
Volume:
2011
Issue:
1
Start Page:
LSMR
End Page:
21-319
Publisher:
AstonJournals
All titles:
"Plant Growth Promoting Rhizobacteria: A Critical Review"@eng