Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia
In order to expand the cultivation of white lupin and improve its nodulation and growth in Tunisian soils, twenty native strains affiliated to the Rhizobium and Agrobacterium genera were used in this study. Phenotypic characterization identified a strain, LAb8, that was highly tolerant of different types of abiotic stress under in vitro conditions, including pH variation (4-11), drought (15-30% PEG600) and salinity (600-1500 mM NaCl). With cultivation in sterilized carrier sand, the nodulation test highlighted the efficiency of this strain in increasing shoot dry weight (+208%) and nitrogen accumulation (+116%) compared to unfertilized control plants. Subsequently, a pot experiment was conducted to elucidate the potential of these selected strains applied as liquid and solid inoculants to promote nodulation and growth, as well as the nitrogen content of white lupin plants grown in non-sterilized soils. The results showed that inoculation with LAb8 significantly increased nodulation in terms of number (+95-118%) and dry weight (213-296%), whether as a solid or liquid inoculant. Significant increases were recorded in inoculated plants for leaf chlorophyll content (+9-11%), plant height (+16-18%), shoot and root dry weight (+38-44% and +51-61% respectively) compared to unfertilized control plants. Interestingly, compared to unfertilized control plants, application of the selected strain induced higher shoot nitrogen accumulation varying from 71% to 79% for liquid and solid inoculants, respectively. Furthermore, the solid inoculant was more efficient than its equivalent, the liquid inoculants gave the best dry nodular biomass and nitrogen content, respectively + (26%) and (+ 5%) respectively than the liquid form.
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Subjects: | F07 - Façons culturales, Lupinus albus, inoculation des racines, inoculation du sol, Rhizobium, http://aims.fao.org/aos/agrovoc/c_4464, http://aims.fao.org/aos/agrovoc/c_35955, http://aims.fao.org/aos/agrovoc/c_14396, http://aims.fao.org/aos/agrovoc/c_6563, http://aims.fao.org/aos/agrovoc/c_8007, |
Online Access: | http://agritrop.cirad.fr/599314/ http://agritrop.cirad.fr/599314/7/599314.pdf |
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dig-cirad-fr-5993142024-01-29T03:47:09Z http://agritrop.cirad.fr/599314/ http://agritrop.cirad.fr/599314/ Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia. Tounsi-Hammami Soumaya, Dhane-Fitouri Sana, Le Roux Christine, Hammami Zied, Ben Jeddi Faysal. 2020. Annales de l'Institut National de la Recherche Agronomique de Tunisie, 93 : 102-114.http://www.inrat.agrinet.tn/index.php/fr/services-en-ligne/annales-de-l-inrat.html <http://www.inrat.agrinet.tn/index.php/fr/services-en-ligne/annales-de-l-inrat.html> Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia Tounsi-Hammami, Soumaya Dhane-Fitouri, Sana Le Roux, Christine Hammami, Zied Ben Jeddi, Faysal eng 2020 Annales de l'Institut National de la Recherche Agronomique de Tunisie F07 - Façons culturales Lupinus albus inoculation des racines inoculation du sol Rhizobium http://aims.fao.org/aos/agrovoc/c_4464 http://aims.fao.org/aos/agrovoc/c_35955 http://aims.fao.org/aos/agrovoc/c_14396 http://aims.fao.org/aos/agrovoc/c_6563 Tunisie http://aims.fao.org/aos/agrovoc/c_8007 In order to expand the cultivation of white lupin and improve its nodulation and growth in Tunisian soils, twenty native strains affiliated to the Rhizobium and Agrobacterium genera were used in this study. Phenotypic characterization identified a strain, LAb8, that was highly tolerant of different types of abiotic stress under in vitro conditions, including pH variation (4-11), drought (15-30% PEG600) and salinity (600-1500 mM NaCl). With cultivation in sterilized carrier sand, the nodulation test highlighted the efficiency of this strain in increasing shoot dry weight (+208%) and nitrogen accumulation (+116%) compared to unfertilized control plants. Subsequently, a pot experiment was conducted to elucidate the potential of these selected strains applied as liquid and solid inoculants to promote nodulation and growth, as well as the nitrogen content of white lupin plants grown in non-sterilized soils. The results showed that inoculation with LAb8 significantly increased nodulation in terms of number (+95-118%) and dry weight (213-296%), whether as a solid or liquid inoculant. Significant increases were recorded in inoculated plants for leaf chlorophyll content (+9-11%), plant height (+16-18%), shoot and root dry weight (+38-44% and +51-61% respectively) compared to unfertilized control plants. Interestingly, compared to unfertilized control plants, application of the selected strain induced higher shoot nitrogen accumulation varying from 71% to 79% for liquid and solid inoculants, respectively. Furthermore, the solid inoculant was more efficient than its equivalent, the liquid inoculants gave the best dry nodular biomass and nitrogen content, respectively + (26%) and (+ 5%) respectively than the liquid form. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/599314/7/599314.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://www.inrat.agrinet.tn/index.php/fr/services-en-ligne/annales-de-l-inrat.html info:eu-repo/semantics/altIdentifier/purl/http://www.inrat.agrinet.tn/index.php/fr/services-en-ligne/annales-de-l-inrat.html |
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F07 - Façons culturales Lupinus albus inoculation des racines inoculation du sol Rhizobium http://aims.fao.org/aos/agrovoc/c_4464 http://aims.fao.org/aos/agrovoc/c_35955 http://aims.fao.org/aos/agrovoc/c_14396 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_8007 F07 - Façons culturales Lupinus albus inoculation des racines inoculation du sol Rhizobium http://aims.fao.org/aos/agrovoc/c_4464 http://aims.fao.org/aos/agrovoc/c_35955 http://aims.fao.org/aos/agrovoc/c_14396 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_8007 |
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F07 - Façons culturales Lupinus albus inoculation des racines inoculation du sol Rhizobium http://aims.fao.org/aos/agrovoc/c_4464 http://aims.fao.org/aos/agrovoc/c_35955 http://aims.fao.org/aos/agrovoc/c_14396 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_8007 F07 - Façons culturales Lupinus albus inoculation des racines inoculation du sol Rhizobium http://aims.fao.org/aos/agrovoc/c_4464 http://aims.fao.org/aos/agrovoc/c_35955 http://aims.fao.org/aos/agrovoc/c_14396 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_8007 Tounsi-Hammami, Soumaya Dhane-Fitouri, Sana Le Roux, Christine Hammami, Zied Ben Jeddi, Faysal Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia |
description |
In order to expand the cultivation of white lupin and improve its nodulation and growth in Tunisian soils, twenty native strains affiliated to the Rhizobium and Agrobacterium genera were used in this study. Phenotypic characterization identified a strain, LAb8, that was highly tolerant of different types of abiotic stress under in vitro conditions, including pH variation (4-11), drought (15-30% PEG600) and salinity (600-1500 mM NaCl). With cultivation in sterilized carrier sand, the nodulation test highlighted the efficiency of this strain in increasing shoot dry weight (+208%) and nitrogen accumulation (+116%) compared to unfertilized control plants. Subsequently, a pot experiment was conducted to elucidate the potential of these selected strains applied as liquid and solid inoculants to promote nodulation and growth, as well as the nitrogen content of white lupin plants grown in non-sterilized soils. The results showed that inoculation with LAb8 significantly increased nodulation in terms of number (+95-118%) and dry weight (213-296%), whether as a solid or liquid inoculant. Significant increases were recorded in inoculated plants for leaf chlorophyll content (+9-11%), plant height (+16-18%), shoot and root dry weight (+38-44% and +51-61% respectively) compared to unfertilized control plants. Interestingly, compared to unfertilized control plants, application of the selected strain induced higher shoot nitrogen accumulation varying from 71% to 79% for liquid and solid inoculants, respectively. Furthermore, the solid inoculant was more efficient than its equivalent, the liquid inoculants gave the best dry nodular biomass and nitrogen content, respectively + (26%) and (+ 5%) respectively than the liquid form. |
format |
article |
topic_facet |
F07 - Façons culturales Lupinus albus inoculation des racines inoculation du sol Rhizobium http://aims.fao.org/aos/agrovoc/c_4464 http://aims.fao.org/aos/agrovoc/c_35955 http://aims.fao.org/aos/agrovoc/c_14396 http://aims.fao.org/aos/agrovoc/c_6563 http://aims.fao.org/aos/agrovoc/c_8007 |
author |
Tounsi-Hammami, Soumaya Dhane-Fitouri, Sana Le Roux, Christine Hammami, Zied Ben Jeddi, Faysal |
author_facet |
Tounsi-Hammami, Soumaya Dhane-Fitouri, Sana Le Roux, Christine Hammami, Zied Ben Jeddi, Faysal |
author_sort |
Tounsi-Hammami, Soumaya |
title |
Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia |
title_short |
Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia |
title_full |
Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia |
title_fullStr |
Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia |
title_full_unstemmed |
Potential of native inoculum to improve the nodulation and growth of white lupin in Tunisia |
title_sort |
potential of native inoculum to improve the nodulation and growth of white lupin in tunisia |
url |
http://agritrop.cirad.fr/599314/ http://agritrop.cirad.fr/599314/7/599314.pdf |
work_keys_str_mv |
AT tounsihammamisoumaya potentialofnativeinoculumtoimprovethenodulationandgrowthofwhitelupinintunisia AT dhanefitourisana potentialofnativeinoculumtoimprovethenodulationandgrowthofwhitelupinintunisia AT lerouxchristine potentialofnativeinoculumtoimprovethenodulationandgrowthofwhitelupinintunisia AT hammamizied potentialofnativeinoculumtoimprovethenodulationandgrowthofwhitelupinintunisia AT benjeddifaysal potentialofnativeinoculumtoimprovethenodulationandgrowthofwhitelupinintunisia |
_version_ |
1792500231181434880 |