Agriculture Reference
In-Depth Information
Table 8.4 (continued)
Phosphate
solubilizers
Legumes
Plant attributes
References
content in soil at harvest, and
protein and carbohydrates in
grains.
Unidentified PSB
with triple
superphosphate
Rice
Plant height and number of tillers
per plant were significantly
increased; level of mineral
nutrients in rice plant tissues
was increased
Sarkar
et al. ( 2012 )
P. agglomerans
NBRISRM
Maize, Chickpea Shoot length, leaves, seed, N,P, and
K uptake
Mishra
et al. ( 2011 )
P. fluorescens,
P. Putida
Wheat
Plant height, tillers, number of
grains/spike, 1,000-grain
weight, grain and straw yield, N,
P, and K uptake
Zabihi
et al. ( 2011 )
Paenibacillus alvei,
Bacillus simplex,
Bacillus cereus
Wheat
Shoot and root biomass and total
root length
Hassen and
Labuschagne
( 2010 )
Pseudomonas sp.
Wheat
Improved grain yield, shoot weight,
and plant height
Afzal and Bano
( 2008 )
(2) antifungal activity expressed by the test bacterial strain against various fungal
pathogens. Similar increase in the biological and chemical characteristics and
quality of pea and chickpea under both controlled conditions and field environment
following P-solubilizing, auxin, ACC deaminase, ammonia, and siderophore-
producing strains of Acinetobacter rhizosphaerae and Mesorhizobium
mediterraneum (PECA21) has been reported (Gull et al. 2004 ; Gulati et al. 2009 ).
Likewise, inoculation of green gram seeds with PSB demonstrated an extensive
nodulation, and increased shoot dry matter and total dry matter, P content, and P
uptake in green gram plants 45 days after sowing relative either to rock phosphate
(RP) or single super phosphate (SSP) application (Vikram and Hamzehzarghani
2008 ).
8.4.1.2 Synergistic Effects of Phosphate-Solubilizing Bacteria
with Other Soil Microflora
Phosphate-solubilizing microorganisms while inhabiting rhizosphere are reported
to exhibit many fold relationship with other soil microflora especially the PGPR and
enhance the overall performance of legumes additively or synergistically both in
the presence and absence of chemically synthesized phosphatic fertilizers in dif-
ferent production systems (Plate 8.2 ). Phosphate-solubilizing organisms in addition
to supplying P to plants can also enhance plant growth by improving the efficiency
of BNF, by accelerating the availability of other trace elements, and by production
of phytohormones (Khan et al. 2009 , 2013 ). Accordingly, increase in the yield of
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