Initial studies on the legume: rhizobium symbiosis

Twenty strains of cowpea Rhizobium have been screened to date for their ability to form nodules and to fix nitrogen using the Leonard jar assembly. The strains were tested on Ife Brown, TVu 1190, and TVx 222-01B. From among the twenty, four promising strains were selected. The nodulation and nitro-g...

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Autor principal: Danso, S.K.A.
Formato: Conference Paper
Lenguaje:Inglés
Publicado: 1975
Materias:
Acceso en línea:https://hdl.handle.net/10568/97939
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author Danso, S.K.A.
author_browse Danso, S.K.A.
author_facet Danso, S.K.A.
author_sort Danso, S.K.A.
collection Repository of Agricultural Research Outputs (CGSpace)
description Twenty strains of cowpea Rhizobium have been screened to date for their ability to form nodules and to fix nitrogen using the Leonard jar assembly. The strains were tested on Ife Brown, TVu 1190, and TVx 222-01B. From among the twenty, four promising strains were selected. The nodulation and nitro-gen fixing ability of these strains plus Nitragin commercial inoculant on the three cowpea varieties were tested in two soils in the greenhouse. Many of the selected strains caused an increase in the count of nodules on Ife Brown in both Apomu and Egbeda soils. Inoculation with the selected strains improved nodulation on TVx 22-01B in Apomu but not in Egbeda soil. Innoculation of cowpea Rhizobium did not increase the numbers of nodules formed on TVu 1190 in any of the soils. In an experiment performed in the greenhouse in which inoculated seeds were either pelleted or not pelleted, it was shown that nodulation was not affected by the pelleting material used. However, the uninoculated controls were practically not nodulated. Counts of the rhizosphere population of R. japonicum revealed that greater numbers of the bacteria persisted in the soil planted with pe11eted seeds than where only inoculation was practised. The best pelleting material was rock phosphate followed by CaSi03.
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spelling CGSpace979392023-02-15T06:38:37Z Initial studies on the legume: rhizobium symbiosis Danso, S.K.A. cowpeas inoculation rhizobium Twenty strains of cowpea Rhizobium have been screened to date for their ability to form nodules and to fix nitrogen using the Leonard jar assembly. The strains were tested on Ife Brown, TVu 1190, and TVx 222-01B. From among the twenty, four promising strains were selected. The nodulation and nitro-gen fixing ability of these strains plus Nitragin commercial inoculant on the three cowpea varieties were tested in two soils in the greenhouse. Many of the selected strains caused an increase in the count of nodules on Ife Brown in both Apomu and Egbeda soils. Inoculation with the selected strains improved nodulation on TVx 22-01B in Apomu but not in Egbeda soil. Innoculation of cowpea Rhizobium did not increase the numbers of nodules formed on TVu 1190 in any of the soils. In an experiment performed in the greenhouse in which inoculated seeds were either pelleted or not pelleted, it was shown that nodulation was not affected by the pelleting material used. However, the uninoculated controls were practically not nodulated. Counts of the rhizosphere population of R. japonicum revealed that greater numbers of the bacteria persisted in the soil planted with pe11eted seeds than where only inoculation was practised. The best pelleting material was rock phosphate followed by CaSi03. 1975-06 2018-11-14T06:50:55Z 2018-11-14T06:50:55Z Conference Paper https://hdl.handle.net/10568/97939 en Open Access application/pdf Danso, S.K.A. (1975). Initial studies on the legume: rhizobium symbiosis. In R.A. Luse and K.O. Rachie, Proceedings of IITA Collaborators' Meeting on Grain Legume Improvement.
spellingShingle cowpeas
inoculation
rhizobium
Danso, S.K.A.
Initial studies on the legume: rhizobium symbiosis
title Initial studies on the legume: rhizobium symbiosis
title_full Initial studies on the legume: rhizobium symbiosis
title_fullStr Initial studies on the legume: rhizobium symbiosis
title_full_unstemmed Initial studies on the legume: rhizobium symbiosis
title_short Initial studies on the legume: rhizobium symbiosis
title_sort initial studies on the legume rhizobium symbiosis
topic cowpeas
inoculation
rhizobium
url https://hdl.handle.net/10568/97939
work_keys_str_mv AT dansoska initialstudiesonthelegumerhizobiumsymbiosis