Effectuality of Azotobacter inoculation on wheat (Triticum aestivum L.) grown under diverse nitrogen regimes


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Authors

  • Davinder Singh Punjab Agricultural University, Ludhiana-141004
  • Jayesh Singh Punjab Agricultural University, Ludhiana-141004
  • Achla Sharma Punjab Agricultural University, Ludhiana-141004
  • Anu Kalia Punjab Agricultural University, Ludhiana-141004

Keywords:

Azotobacter, Inoculation, Nitrogen, Quality,, Wheat, Yield

Abstract

The present investigation was conducted at the research farm of wheat Section, Department of Plant Breeding
& Genetics, Punjab Agricultural University, Ludhiana during rabi 2014-15 and 2015-16 in split plot design
with three replications. The treatments included inoculation of seed and soil with Azotobacter besides
the uninoculated control as check in main plots and different levels of recommended nitrogen (0, 50, 75 and
100% of recommended nitrogen) in sub plots. The seed of wheat when inoculated with Azotobacter recorded
significantly highest growth attributes at maturity viz. plant height (82.6 cm), tiller density (320.9), dry
matter accumulation (94.0 q/ha), LAI (3.32), PAR interception (79.6% and chlorophyll content (2.03 mg/g of
fresh wt.). The trend for soil inoculation was similar to that of seed inoculation but the values of the above
said parameters were either equivalent or a bit lower than that recorded for seed inoculation. The grain
yield (48.0 and 47.3 q/ha) and quality in terms of protein content (11.49 and 11.34%) of wheat on inoculation
with Azotobacter (either seed or soil respectively) also improved over uninoculated plot. Among the nitrogen
levels (100%, 75% and 50% of recommended N), application of 100% recommended nitrogen resulted in
significantly higher growth than other levels of nitrogen in terms of plant height (92.8 cm), tiller count
(366.8), dry matter accumulation (104.8 q/ha), LAI (3.89), PAR interception (89.0%), chlorophyll content
(2.34 mg/g of fresh weight) and also productivity in terms of grain yield (56.3 q/ha) The quality of wheat in
terms of protein (11.84%) and gluten index (77.12) also improved with application of 100% recommended
nitrogen

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Submitted

2022-11-03

Published

2022-11-03

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Articles

How to Cite

Effectuality of Azotobacter inoculation on wheat (Triticum aestivum L.) grown under diverse nitrogen regimes. (2022). Annals of Agricultural Research, 43(3), 254-260. https://epubs.icar.org.in/index.php/AAR/article/view/129808