Vol. 6, Issue 3 (2018)
Root and shoot length, nodulation, chlorophyll, seed yield and grain protein content of pigeonpea influenced by chromium reducing strains Rhizobium strain RP2 and BP7 Bacillus strain in chromium related soils in Aligarh
Author(s): Huma Naz, Asma Naz, Ayesha, Samiya Maqsood and Shabbir Ashraf
Abstract: In this experiment chromium-reducing and plant growth promoting Rhizobium strain RP2 was used to assess its bioremediation potential in pot house conditions using pigeonpea as a test legume crop. Among the three concentration of Cr (VI) at 60.52 mg/kg soil had the largest toxic effects decreased root length 55.82%, shoot length 28.27%, nodule numbers 69.73% and nodule dry weight 75.21%, at 80 days, root length 44.44%, shoot length 34.01%, at 110 day as compared to control. In comparison when, Rhizobium strain RP2 was also added, it increased the root length by 4.00%, shoot length 3.16 %, nodule numbers 11.69%, nodule dry weight 5.62% at 80 days (root length 6.13%, shoot length 2.38% at 110 days as compared to control. Chromium at concentration 60.52 mg/kg was the most toxic and decreased the chlorophyll and by 63.89% as compared to control. In comparison, the bioinoculant showed a maximum increase in the chlorophyll content of 8.41%, at 60.52 mg Cr /kg soil compared to control. Chromium at 60.52 mg/kg was the most toxic and decreased the seed yield and grain protein by 48.94% and 17.86% as compared to control. In comparison, the bioinoculant showed a maximum increase in the seed yield and protein content of 8.27% and 16.42% at 60.52 mg Cr /kg soil compared to control. Bacillus strain BP7 was used to assess its bioremediation potential in pot house conditions using pigeonpea as a test legume crop. Among the three concentration of Cr (VI) at 60.52 mg/kg soil had the highest toxic effects decreased root length 55.82%, shoot length 28.27%, nodule numbers 69.73% and nodule dry weight 75.21%, at 80 days, root length 44.44%, shoot length 34.01%, at 110 day as compared to the control. In comparison when, Bacillus strain BP7 was also added, it increased the root length, 7.69%, shoot length 3.80%, nodule numbers 16.31%, nodule dry weight 6.25% at 80 days, root length 8.67%, shoot length 2.52% respectively at 110 days as compared to control. Chromium at 60.52 mg/kg was the most toxic and decreased the chlorophyll by 63.89% as compared to control. In comparison, the bioinoculant showed a maximum increase in the chlorophyll content of 6.30%, at 60.52 mg Cr /kg soil compared to control. Chromium at 60.52 mg/kg was most toxic and decreased the seed yield and grain protein by 48.94% and 17.86% respectively as compared to control. In comparison, the bioinoculant showed a maximum increase in the seed yield and protein content of 7.18% and 13%, respectively at 60.52 mg Cr /kg soil as compared to control.
Pages: 2572-2577 | 399 Views 72 Downloads
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How to cite this article:
Huma Naz, Asma Naz, Ayesha, Samiya Maqsood, Shabbir Ashraf. Root and shoot length, nodulation, chlorophyll, seed yield and grain protein content of pigeonpea influenced by chromium reducing strains Rhizobium strain RP2 and BP7 Bacillus strain in chromium related soils in Aligarh. Int J Chem Stud 2018;6(3):2572-2577.
