Abstract
Abstract A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species, i.e. Acaulospora longula, A. myriocarpa, Entrophospora colombiana, Glomus fasciculatum, G. manihotis, G. occultum and Scutellospora heterogama. A wet and a dry soil water regime was established to study the effect of water stress on performance of these fungi with a drought tolerant cassava clone. At harvest, N, P and K concentration was analysed in leaves, petioles, stems and roots. In unstressed plants, five endophytes were effective whereas in stressed plants only three fungi improved growth beyond the non‐mycorrhizal control. These were E. colombiana, G. manihotis and G. occultum which were most effective for P uptake under stress. Differential effects of VAM fungal species on root length and K. uptake were found. A. myriocarpa caused the greatest increase in length of feeder roots and G. occultum was one of the most effective for K uptake under both water regimes even though these fungi were not the most effective for dry matter production. Under each water regime, the concentration of N, P and K in leaves, petioles, stems and roots was influenced by the fungal species. Mycorrhizal endophytes differed in tolerance to dry soil conditions as found by root infection ratings. From the results it can be concluded that in addition to the improved P nutrition the enhanced root length and K uptake by VAM fungi may be important for drought tolerance of cassava.
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Claims 9
Claim · model-written summary
Five VAM fungal species improved cassava growth under unstressed conditions.
- Taxon
- cassava
Manihot esculentae0 - Treatment
- VAM fungal speciese0
- Interactor
- VAM fungal speciese0symbiont
- Outcome
- growthe1
- Direction
- improvede1
- Qualifier
- unstressed plantse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e1“In unstressed plants, five endophytes were effective whereas in stressed plants only three fungi improved growth”
Claim · model-written summary
Under dry soil, only three VAM fungal species improved cassava growth.
- Taxon
- cassavaManihot esculentae0
- Treatment
- dry soil water regimee3
- Interactor
- VAM fungal speciese0symbiont
- Outcome
- growthe2
- Direction
- improvede2
- Qualifier
- only three fungie2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e2“in stressed plants only three fungi improved growth”
e3“A wet and a dry soil water regime was established to study the effect of water stress on performance of these fungi”
Claim · model-written summary
Under drought, E. colombiana, G. manihotis and G. occultum were most effective for P uptake in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- dry soil water regimee3
- Interactor
- VAM fungal speciese0symbiont
- Outcome
- P uptakee4
- Direction
- most effectivee4
- Qualifier
- under stresse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e3“A wet and a dry soil water regime was established to study the effect of water stress on performance of these fungi”
e4“These were E. colombiana, G. manihotis and G. occultum which were most effective for P uptake under stress”
Claim · model-written summary
A. myriocarpa caused the greatest increase in feeder root length in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- A. myriocarpae5
- Interactor
- A. myriocarpae5symbiont
- Outcome
- length of feeder rootse5
- Direction
- greatest increasee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e5“A. myriocarpa caused the greatest increase in length of feeder roots”
Claim · model-written summary
G. occultum was one of the most effective VAM fungal species for K uptake under both water regimes in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- G. occultume6
- Interactor
- G. occultumParaglomus occultume6symbiont
- Outcome
- K uptakee6
- Direction
- most effectivee6
- Qualifier
- under both water regimese6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e6“G. occultum was one of the most effective for K uptake under both water regimes”
Claim · model-written summary
G. occultum was not among the most effective fungi for dry matter production in cassava.
- Taxon
- cassavaManihot esculentae0
- Treatment
- G. occultume6
- Interactor
- G. occultumParaglomus occultume6symbiont
- Outcome
- dry matter productione7
- Direction
- not the most effectivee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e6“G. occultum was one of the most effective for K uptake under both water regimes”
e7“even though these fungi were not the most effective for dry matter production”
Claim · model-written summary
The fungal species influenced N, P and K concentrations in cassava leaves, petioles, stems and roots under each water regime.
- Taxon
- cassavaManihot esculentae0
- Organ / stage
- leaves, petioles, stems and rootse4
- Interactor
- fungal speciese4symbiont
- Outcome
- concentration of N, P and Ke4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e4“Under each water regime, the concentration of N, P and K in leaves, petioles, stems and roots was influenced by the fungal species”
Claim · model-written summary
Mycorrhizal endophytes differed in tolerance to dry soil conditions, as found by root infection ratings.
- Taxon
- cassavaManihot esculentae0
- Interactor
- Mycorrhizal endophytese1symbiont
- Outcome
- tolerance to dry soil conditionse1
- Qualifier
- as found by root infection ratingse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e1“Mycorrhizal endophytes differed in tolerance to dry soil conditions as found by root infection ratings”
Claim · model-written summary
Enhanced root length and K uptake by VAM fungi may be important for drought tolerance of cassava, in addition to improved P nutrition.
- Taxon
- cassavaManihot esculentae5
- Outcome
- drought tolerancee5
- Qualifier
- enhanced root length and K uptake by VAM fungie5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greenhouse trial was conducted with cassava inoculated with seven different VAM fungal species”
e5“the enhanced root length and K uptake by VAM fungi may be important for drought tolerance of cassava”
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mycorrhiza · growth · Manihot esculenta (cassava)Results agree
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- positive
- positive
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See all 10 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.