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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(6): 1529-1537
DOI: https://doi.org/10.20546/ijcmas.2017.606.180


Response of Phosphate Solubilising Inoculants (Jumpstart) on Biochemistry and Yield of Rice (Oryza sativa L.)
Geethalakshmi1, V. Ravichandran1*, P. Boominathan2 and P. Jeyakumar2
1Department of Rice, Tamil Nadu Agricultural University, Coimbatore-641003,Tamil Nadu, India
2Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641003, Tamil Nadu, India
*Corresponding author
Abstract:

Phosphorus plays a significant role in several physiological and biochemical activities in plants. Phosphorus in soils is immobilized due to formation of insoluble complexes such as iron and aluminium hydrous oxides and calcium carbonate. Phosphate-solubilizing microorganisms (PSM) play an important role in insoluble phosphates into soluble forms involves processes of acidulation, ion chelation and exchange reactions. Present study, a field experiment was carried out to study the physiological and yield response of phosphate solubilising inoculants (JumpStart) on rice variety CO 47 under machine transplanting rice ecosystem. The present study revealed that the treatment P3S3 (100% P + JumpStart 10E5) was recorded increased total chlorophyll (3.03 mg g-1) and higher leaf carbohydrate (82.06 mg g-1) at 50% flowering stage. The lower enzyme activity of acid phosphatase (0.022 µmol of pNPP g-1 min-1) and ATPase (29.37 µg of Pi g-1 h-1) were recorded by treatment P3S3 (100% P + JumpStart 10E5) over control at 50% flowering stage. The uptake of phosphorus by plants was found higher in P3S3 treatment observed at all stages of crop growth. At 50% flowering stage, phosphorus (69.26 kg ha-1), uptake were observed higher in P3S3 treatment than control. The maximum grain yield of 8426 kg ha-1 was registered by P3S3 (100% P + JumpStart) with an increase of 16.4 per cent over control. This might be due to the significant increment of major yield components such as number of productive tillers per plant, panicle dry weight and number of grains per panicle by the application of 100 % recommended phosphorus with seed treatment of JumpStart 10E5.


Keywords: Phosphorus,Rice,Physiology, Chlorophyll.
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How to cite this article:

Geethalakshmi, M., V. Ravichandran, P. Boominathan and Jeyakumar, P. 2017. Response of Phosphate Solubilising Inoculants (Jumpstart) on Biochemistry and Yield of Rice (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 6(6): 1529-1537. doi: https://doi.org/10.20546/ijcmas.2017.606.180