Abstract
The root growth of pigeonpea plants [Cajanus cajan (L) Millsp.] was studied with a micro-video camera inserted into a glass tube embedded in the soil, and the effects of soil waterlogging were quantified. Daily changes in root length density (RLD) and the differences in root growth between waterlogged and control plants were calculated by adopting curve-fitting into the time-course data of RLD. Roots which suffered from waterlogging exhibited higher daily changes in RLD during the recovery process than unstressed roots. After waterlogging, an increase in RLD was first observed in the upper soil layers, and then in progressively deeper layers. This study demonstrates that root growth can be successfully studied by frequent observations of the same soil-plant interface through glass tubes. Furthermore, the effects of waterlogging can be adequately studied using this technique.
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Claims 4
Claim · model-written summary
Waterlogged roots had higher daily changes in root length density during recovery than unstressed roots.
- Taxon
- pigeonpea
Cajanus cajane1 - Organ / stage
- Rootse0
- Treatment
- waterlogginge0
- Outcome
- daily changes in RLDe0
- Direction
- highere0
- Comparator
- unstressed rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Roots which suffered from waterlogging exhibited higher daily changes in RLD during the recovery process than unstressed roots.”
e1“pigeonpea plants [Cajanus cajan (L) Millsp.]”
Claim · model-written summary
Following waterlogging, root length density increased first in upper layers and then deeper layers.
- Taxon
- pigeonpeaCajanus cajane1
- Organ / stage
- upper soil layerse0
- Treatment
- waterlogginge0
- Outcome
- RLDe0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After waterlogging, an increase in RLD was first observed in the upper soil layers, and then in progressively deeper layers.”
e1“pigeonpea plants [Cajanus cajan (L) Millsp.]”
Claim · model-written summary
Frequent observations through glass tubes successfully measured growth at the same soil plant interface.
- Taxon
- pigeonpeaCajanus cajane1
- Outcome
- root growthe0
- Value
- frequent observationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root growth can be successfully studied by frequent observations of the same soil-plant interface through glass tubes.”
e1“pigeonpea plants [Cajanus cajan (L) Millsp.]”
Claim · model-written summary
The technique adequately studied waterlogging effects.
- Taxon
- pigeonpeaCajanus cajane1
- Outcome
- effects of waterlogginge0
- Value
- adequatelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of waterlogging can be adequately studied using this technique.”
e1“pigeonpea plants [Cajanus cajan (L) Millsp.]”
The same questions in other papers
flooding · growth · Cajanus cajan (pigeon pea)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
1 paper more in this group
See all 5 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.