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Systematic screening strategies for identifying elite plant growth promoting rhizobacteria for coconut (Cocos nucifera L.)

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Title Systematic screening strategies for identifying elite plant growth promoting rhizobacteria for coconut (Cocos nucifera L.)
Not Available
 
Creator Priya George
Alka Gupta
Murali Gopal
Litty Thomas
George V. Thomas
 
Subject Screening PGPR
Fluorescent pseudomonads
Bacillus spp.
Coconut
Plant growth promoting traits
 
Description Not Available
Elite strains of plant growth promoting rhizobacteria were proficiently selected based on the strategic screening approaches.These included in vitrotesting for plant growth promotion attributes, seedling bioassay under controlled and under greenhouse conditions. Atotal of 483 morphologically distinct bacteria [156 rhizosphere fluorescent Pseudomonasspp. (RSF), 206 rhizosphereBacillusspp. (RSB) and 121 endophytic Bacillusspp. (EB)]were isolated from the roots and rhizosphere soil of coconut palms growing in different states of India. These were characterized for various plant growth promotion traits that have direct and indirect effects on plant growth. All the isolates were assessed and given scores based on their in vitroassay of plant growth promotion traits. A total of 129 isolates, which secured more than 11 points, were further selected for seedling bioassay under controlled conditions. Greenhouse trial was conducted with 72 isolates and results further proved the efficiency of screened isolates for plant growth promotion. This strategic screening helped in shortlisting a total of 20 best PGPR (7 fluorescent Pseudomonasspp. and 13 Bacillusspp.) out of 483 isolates. The present study clearly showed that the rhizosphere of coconut palms harbour varied populations of fluorescent pseudomonads and Bacillusspp. that possess diverse plant growth promotion properties, and some of the efficient ones could be developed in to bioinoculants for use in coconut nurseries and plantations.
Not Available
 
Date 2019-10-22T04:40:22Z
2019-10-22T04:40:22Z
2018
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/23778
 
Language English
 
Relation Not Available;
 
Publisher Not Available