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Potential of Rhizobium and PGPR to Enhance Growth and Fodder Yield of Berseem (Trifolium alexandrinum L.) in the Presence and Absence of Tryptamine

Potential of Rhizobium and PGPR to Enhance Growth and Fodder Yield of Berseem (Trifolium alexandrinum L.) in the Presence and Absence of Tryptamine

Fraza Ijaz1*, Umair Riaz2, Shazia Iqbal3, Qamar uz Zaman4, Muhammad Furqan Ijaz5, Hina Javed1, Muhammad Amjad Qureshi1, Zuhra Mazhar3, Ahmad Hassan Khan6, Hassan Mehmood7 and Ijaz Ahmad8 

1Soil Bacteriology Section, Agriculture Biotechnology Research Institute, AARI Faisalabad, Pakistan; 2Soil and Water Testing Laboratory for Research, Bahawalpur-63100, Pakistan; 3Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan; 4Department of Environmental Sciences, The University of Lahore, Lahore, Pakistan; 5Soil and Water Testing Laboratory for Research, Chiniot, Pakistan; 6Fodder Research Sub-station, Ayub Agricultural Research Institute, Faisalabad, Pakistan; 7Department of Soil Sciences, University College of Agriculture and Environmental Sciences, Islamia University of Bahawalpur, Bahawalpur, Pakistan; 8Ecotoxicology Research Program, National Agricultural Research Centre, Islamabad, Pakistan.  


Rhizobium is well recognized because of their symbiotic association especially with leguminous forages and form special structure, i.e., nodules, with 90% of Fabaceae family and displayed all possible means for improving the fertility of soils. Rhizobium also forms a symbiotic association with non-legumes because of their great colonizing capability and helps in improving crop growth. Physiological precursors are also used in association with rhizobium because of their higher solubility in water, continuous providence of hormones as well as low cost. This study was conducted to evaluate the role of Rhizobium, with and without Tryptamine on growth and yield parameters of Berseem. Total of eight treatments was planned to conduct an experiment. Results revealed that the nodule mass (0.523 g plant-1), highest plant height (103.45 cm), number of seeds per head, thousand seeds weight were recorded with Co-inoculation + Tryptamine @ 10-5 M (T8). Nutritious Parameters crude protein (30.23%), neutral detergent fiber (33.45%) and acid detergent fiber (26.56%) gave significant results as compared to control (T1). Results indicated that the combined application of Rhizobium species and Tryptamine performed better by improving growth and yield and quality parameters. It is concluded that precursor-inoculum combination is an effective approach and should be tested in different ecologies. 


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Pakistan Journal of Agricultural Research


Vol. 32, Iss. 4, Pages 562-709


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