Abstract
S ummary Mycorrhizal and non‐mycorrhizal sorghum [ Sorghum bicolor (L.) Moench] plants were grown in soil treated with one of three rates of ( 15 NH 4 ) 2 SO 4 , fertilizer. Mycorrhizal plants did not significantly differ from non‐mycorrhizal plants in total plant dry weight, total plant N, or percent utilization of the applied N by the whole plant at any fertilizer rate. However, the atom percent 15 N excess in shoots, roots and the whole plant, and percent N derived from fertilizer were significantly higher for non‐mycorrhizal plants at the intermediate level of fertilizer N. The percent N derived from native soil sources, and ‘A’ values were significantly higher for mycorrhizal plants, compared to non‐mycorrhizal plants, at the intermediate but not low or high fertilizer rates. The results suggest that, at the intermediate fertilizer rate, where plants produced the most growth, mycorrhizal sorghum plants derived N from a source that was less available to non‐mycorrhizal plants.
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Claims 5
Claim · model-written summary
Mycorrhizal and non-mycorrhizal sorghum did not differ significantly in dry weight, total N or use of applied N.
- Treatment
- Mycorrhizal plantse0
- Outcome
- total plant dry weight, total plant N, or percent utilization of the applied Ne0
- Direction
- did not significantly differe0
- Qualifier
- at any fertilizer ratee0
- Comparator
- non‐mycorrhizal plantse0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mycorrhizal plants did not significantly differ from non‐mycorrhizal plants in total plant dry weight, total plant N, or percent utilization of the applied N by the whole plant at any fertilizer rate.”
t0“SORGHUM”
Claim · model-written summary
Non-mycorrhizal plants had higher 15N excess in shoots, roots and whole plants at intermediate N.
- Outcome
- atom percent 15 N excess in shoots, roots and the whole plante0
- Direction
- highere0
- Qualifier
- intermediate level of fertilizer Ne0
- Comparator
- non‐mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the atom percent 15 N excess in shoots, roots and the whole plant, and percent N derived from fertilizer were significantly higher for non‐mycorrhizal plants at the intermediate level of fertilizer N.”
t0“SORGHUM”
Claim · model-written summary
Non-mycorrhizal plants derived a higher percentage of N from fertilizer at intermediate N.
- Outcome
- percent N derived from fertilizere0
- Direction
- highere0
- Qualifier
- intermediate level of fertilizer Ne0
- Comparator
- non‐mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the atom percent 15 N excess in shoots, roots and the whole plant, and percent N derived from fertilizer were significantly higher for non‐mycorrhizal plants at the intermediate level of fertilizer N.”
t0“SORGHUM”
Claim · model-written summary
Mycorrhizal plants had higher native-soil N proportion and A values at intermediate N.
- Outcome
- percent N derived from native soil sources, and ‘A’ valuese0
- Direction
- highere0
- Qualifier
- intermediate but not low or high fertilizer ratese0
- Comparator
- non‐mycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percent N derived from native soil sources, and ‘A’ values were significantly higher for mycorrhizal plants, compared to non‐mycorrhizal plants, at the intermediate but not low or high fertilizer rates.”
t0“SORGHUM”
Claim · model-written summary
At intermediate N, mycorrhizal plants apparently used a nitrogen source less available to non-mycorrhizal plants.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mycorrhizal sorghum plants derived N from a source that was less available to non‐mycorrhizal plants.”
The same questions in other papers
mycorrhiza · growth · SorghumResults differ
5 papers in the same direction as this paper · 17 in the opposite direction
- positive
- positive
- positive
19 papers more in this group
See all 23 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.