Claim · model-written summary
The ratio of shoot to belowground organ dry weight increased only as N supply increased.
- Taxon
- Equisetum arvense
Equisetum arvenset0 - Treatment
- N supplye0
- Outcome
- ratio of shoot DW to belowground organ DWe0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of field horsetail (Equisetum arvense) under low light and low nitrogen conditions”
e0“The ratio of shoot DW to belowground organ DW increased only as the N supply increased”
Title
Growth of field horsetail (Equisetum arvense) under low light and low nitrogen conditions
Torsten N. Andersson; Bengt Lundegårdh Weed Science 1999. doi:10.1017/s0043174500090639
Other claims from this paper (13)
- Intervention effect Field horsetail showed no response to N supply in the first growth period.
- Intervention effect Only dry weight of new belowground production responded to increased light.
- Observation Rhizomes were produced during the latter part of the 52-day period.
- Intervention effect Total new tissue production was reduced only at the lowest light level, 35 μmol m –2 s –1 PPF.
- Intervention effect Total new tissue production was reduced only at the two lowest N supply rates, 6 and 18 kg N ha –1.
- Intervention effect Shoot height response to increased N supply was small.
- Observation Field horsetail can be considered tolerant of low levels of N.
- Observation Field horsetail is expected to be overtopped by fast-growing species when competing for increased N supplies.
- Intervention effect An increase in N supply increased the reduction of dry weight of planted rhizomes.
- Intervention effect A reduction in light increased the reduction of dry weight of planted rhizomes.
- Intervention effect Tuber production was favored by low N supply.
- Intervention effect Tuber production was favored by high light intensities.
- Observation Field horsetail is not likely to be competitive in a dense crop stand.