@article{article_286694, title={Comparative potential of Rhizobium species for the growth promotion of sunflower (Helianthus annuus L.)}, journal={Eurasian Journal of Soil Science}, volume={6}, pages={189–196}, year={2017}, DOI={10.18393/ejss.286694}, author={Ullah, Sana and Qureshi, M. Amjad and Ali, M. Asif and Mujeeb, Fakhar and Yasin, Sanaullah}, keywords={Rhizobium sp,PGPR,auxin biosynthesis,growth,sunflower}, abstract={<p> <i> <span style="font-size:10pt;line-height:115%;font-family:Cambria, serif;">Rhizobium </span> </i> <span style="font-size:10pt;line-height:115%;font-family:Cambria, serif;"> besides its nodule
formation characteristic with members of Fabaceae family has been recognized
for its great root colonizing ability and growth hormone production potential.
In addition to nitrogen fixation in legume plants, rhizobia considered as
beneficial tools and act as plant growth promoting rhizobacteria (PGPR) with
many non-legumes. Present study was elucidated to determine the comparative
role of <i>Rhizbium </i> sp for growth
promotion of sunflower. Rhizobia were isolated from five different legumes
(mungbean, barseem, lentil, chickpea, and vegetable pea) and checked for their
auxin production efficiency. Rhizobial isolates Cp-4 showed maximum auxin
potential </span> <span style="font-size:10pt;line-height:115%;font-family:Cambria, serif;">(5.37 µg mL <sup>-1 </sup>IAA equivalents).Results showed that inoculation of all rhizobial isolates caused
significant increase in growth and physiological parameters of sunflower
plants. While prominent results were found with inoculation of mungbean
rhizobial isolate Mb-2 which increases the chlorophyll a, N, P, fresh and dry
matter of sunflower significantly by 8.34, 4.9, 36, 31, and 34%, respectively
in comparison to un-inoculated control plants. Hence, present study concluded
that <i>Rhizobium </i> sp can be successfully
used as PGPR in non-legumes after thorough investigations.  </span> <br /> </p>}, number={3}, publisher={Türkiye Toprak Bilimi Derneği}