Role of PGPR in different crops - an overview

Ram, R.L. and Maji, C. and Bindroo, B.B. (2013) Role of PGPR in different crops - an overview. Indian Journal of Sericulture, 52 (1). pp. 1-13.

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Abstract

The organisms that establish positive interactions with plant roots and exhibit observable benefits on the plant growth arc collectively termed as plant growth promoting bacteria (PGPR). They are naturally occurring soil microorganisms, which colonize roots and stimulate plant growth. Such bacteria have been applied to a wide range of agricultural species for the purposes of growth enhancement including increased seed emergence, plant weight, crop yields and disease control. Several chemical changes in soils are fully associated with these bacteria in which some bacterial strains directly regulate plant physiology by promoting synthesis of plant hormones, whereas others increase mineral nutrients availability in the soil as a way to augment growth and development. Beneficial effects of PGPR by its supplemental application to crops or soil were first reported from the former Soviet Union in 1950 and later in Western countries. PGPR were initially applied, to enhance crop fertility by increasing the amount of available N and thereafter were used as biological control agents for suppression of soil borne pathogens. Since 1980 onwards, PGPR have been popular in China and India and referred as yield-increasing bacteria (YIB) followed by biofertilizers in India.

Item Type:	Article
Uncontrolled Keywords:	Biological N fixation, Induced systemic resistance, PGPR,Phosphate solubilization
Author Affiliation:	Regional Sericultural Research Station, India.
Subjects:	Plant Production Crop Improvement
Divisions:	General
Depositing User:	Mr Arbind Seth
Date Deposited:	02 Sep 2013 04:37
Last Modified:	02 Sep 2013 04:37
URI:	http://eprints.icrisat.ac.in/id/eprint/11579

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