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Title: | Field evaluation of lentil cultivars inoculated with Rhizobium leguminosarum bv. viciae strains for nitrogen fixation using nitrogen-15 isotope dilution |
Authors: | Hafeez, F. Y. Shah, N. H. Malik, Dr. Kauser .A. |
Keywords: | Evaluation lentils cultivars inoculated |
Issue Date: | Apr-2000 |
Publisher: | springer link |
Citation: | Hafeez, F., Shah, N. & Malik, K. Field evaluation of lentil cultivars inoculated with Rhizobium leguminosarum bv. viciae strains for nitrogen fixation using nitrogen-15 isotope dilution. Biol Fertil Soils 31, 65–69 (2000). https://doi.org/10.1007/s003740050625 |
Series/Report no.: | Biol Fertil Soils 31, 65–69 (2000).; |
Abstract: | A 15N isotope dilution technique was applied to quantify the extent of N2 fixation in lentil (Lens culinaris Medik.) cultivars as influenced by Rhizobium leguminosarum bv. viciae strains in a field experiment in Pakistan. The experiment was conducted on a soil with a very small indigenous rhizobial population and where N was a limiting factor for crop production. Significant variations in number of nodules, dry weight of nodules, biomass yield, grain yield, total N yield, proportion of plant N derived from N2 fixation (Pfix) and amount of N derived from the atmosphere (Ndfa) were observed among combined treatments of four rhizobial strains and six lentil varieties. In a field previously labelled with 15N, to which a basal dose of 75 kg P2O5 ha–1 was applied as single super phosphate, Ndfa ranged from 15 to 24 kg N ha–1 when calculated according to rhizobial strain and from 4 to 38 kg N ha–1 when calculated according to lentil variety. Lc 26 was the most effective strain and fixed 243% more N than the indigenous population in the uninoculated control. In treatments with the lentil variety PL-406, Ndfa was 38 kg N ha–1, which was 850% higher than with the lentil variety Precoz/F6-20-1×M-85. Generally, the varieties with greater Pfix produced a higher dry matter yield. |
Description: | https://doi.org/10.1007/s003740050625 |
URI: | http://localhost:8080/xmlui/handle/123456789/1379 |
Appears in Collections: | School of Life Sciences |
Files in This Item:
File | Description | Size | Format | |
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Field evaluation of lentil cultivars inoculated with rhizobium.pdf | 2.56 MB | Adobe PDF | View/Open |
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