The International Journal of Biological Research (TIJOBR)
Rafia Zainab1, Amina Ramzan2, Amira Athar3, Muzammel Abbas4, Muhammad Shahzad4,
Muhammad Qasim Kakar5, Zain Ullah5,
2Department of Botany, University of Agriculture, Faisalabad, Pakistan
3Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan.
4Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan.
5Department of Agriculture & cooperative, Research Wing, Balochistan, Pakistan
*Corresponding author’s email: email@example.com
|Oct 14,2019||Nov 15,2019||Jan 15,2020|
2020 / Vol: 3 / Issue: 1
A field trial was conducted to evaluate the effect of multi-strain inoculation on growth and yield of rice under field conditions at the research area of the Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, during Kharif season 2017. At maturity, data regarding paddy yield (Kg m-2), protein contents of grain, NPK contents of grain and straw was recorded and analyzed by standard statistical procedures. The results showed that multi-strain inoculation of PsJN, LSI-29 and 6K increased grain N contents, straw N contents and grain protein contents by 33, 26 and 33% respectively, co-inoculation of PsJN and 6K increased grain N contents, straw N contents and grain protein contents by 26, 21 and 26% respectively, co-inoculation of PsJN and LSI-29 increased the same by 18, 19 and 22% respectively, and sole inoculation of PsJN and 6K increased grain N contents by 14 and 12% respectively. Multi-strain inoculation of LSI-29, 6K and PsJN significantly increased grain and straw phosphorus contents up to 39 and 38% respectively over control. Co-inoculation treatments i.e., PsJN + 6K, PsJN + LSI-29 and LSI-29 + 6K significantly increased grain phosphorus contents up to 28, 25 and 22% respectively and straw phosphorus contents up to 29, 28 and 25% respectively over un-inoculated control. Single strain inoculation treatments also significantly increased grain and straw phosphorus contents. The increase in paddy yield caused by multi-strain inoculation of LSI-29, 6K and PsJN was significantly higher than all the co-inoculation treatments (i.e., LSI-29 + 6K, PsJN + 6K and PsJN + LSI-29), all the sole inoculation treatments (i.e., LSI-29, PsJN and 6K) and un-inoculated control. Multi-strain combination of LSI-29, 6K and PsJN significantly increased the grain protein contents over co-inoculation of LSI-29 and 6K, all the sole inoculation treatments (i.e., LSI-29, 6K and PsJN), and un-inoculated control.
Key word: Rice, PGPR strains, NPK
- Ladha, K., F.J. Bruijin, and K.A. Malik. 1997. Introduction: assessingopportunities for nitrogen fixation in rice-a frontier project. Plant and Soi1 94:1-10.
- FAO. 1999. Production yearbook. 53. Rome, Italy.
- Cook, R.J. 2002. Advances in plant health management in the twentieth century. Ann. Rev. Phytopathol. 38: 95-116.
- Podile, A.R. and G.K. Kishore. 2006. Plant growth-promoting rhizobacteria. pp. 195-231. In: Plant-Associated Bacteria. S.S. Gnanamanickam (ed.). Springer.
- Vessey, J. K. 2003. Plant growth promoting rhizobacteria as biofertilizers. Plant Soil 255:571–586.
- Döbereiner, J. 1997. Biological nitrogen fixation in the tropics: Social and economic contributions. Soil Biol. Biochem. 29:771–774.
- Schilling, G., A. Gransee, A. Deubel, G. Lezovic and S. Ruppel. 1998. Phosphorus availability, root exudates and microbial activity in the rhizosphere. Z. P flanzenernähr. Bodenk. 161:465–478.
- Lugtenberg, B. and F. Kamilova. 2009. Plant-growth-promoting rhizobacteria. Annu. Rev. Microbiol. 63: 541-556.
- Marulanda, A., R. Azcón, F. Chaumont, J.M. Ruiz-Lozano and R. Aroca. 2010. Regulation of plasma membrane aquaporins by inoculation with a Bacillus megaterium strain in maize (Zea mays L.) plants under unstressed and saltstressed conditions. Planta. 232:533– 543.