Abstract
The loss of final tuber weight of Eleocharis kuroguwai Ohwi by shading during the early tuber formation period (TFP) is overcome by exposure to unshaded daylight thereafter (late TFP). In the present study, the growth parameters that contribute to the dry matter increase (DMI) per day of tubers in the late TFP were examined. DMI of the tuber during the late TFP was determined by that of the whole plant and the ratio of the DMI of the tuber to that of the whole plant during this period. The ratio of the DMI of the tuber to that of the whole plant during the late TFP was significantly correlated with the DMI of the whole plant during the first 14 days of the late TFP. During the late TFP after the exposure to unshaded daylight, DMI of the whole plant correlated with the surface area of the stem (SAS) and net assimilation ratio (NAR), and the SAS correlated with the stem dry weight (DW) and specific stem‐surface area (SSA). SSA negatively influenced NAR, but NAR was increased by unshading. During the late TFP after shading, the effect of the decrease of the stem DW due to shading on the DMI of the whole plant was mitigated by the large SAS and high NAR. These results indicate that the growth parameters that contribute to the DMI of tuber during the late TFP after exposure to unshaded daylight are SAS and NAR just after unshading, and SSA during this period.
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Claims 8
Claim · model-written summary
Unshaded daylight after early shading restored final tuber weight.
- Taxon
- Eleocharis kuroguwai Ohwi
Eleocharis kuroguwaie0 - Treatment
- exposure to unshaded daylighte0
- Outcome
- final tuber weighte0
- Direction
- overcomee0
- Comparator
- shading during the early tuber formation periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The loss of final tuber weight of Eleocharis kuroguwai Ohwi by shading during the early tuber formation period (TFP) is overcome by exposure to unshaded daylight thereafter (late TFP).”
Claim · model-written summary
Late tuber dry matter increase depended on whole plant dry matter increase and the tuber share of that increase.
- Taxon
- Eleocharis kuroguwai OhwiEleocharis kuroguwait0
- Organ / stage
- tubere0
- Outcome
- DMI of the tubere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DMI of the tuber during the late TFP was determined by that of the whole plant and the ratio of the DMI of the tuber to that of the whole plant during this period.”
t0“Eleocharis kuroguwai Ohwi”
Claim · model-written summary
The tuber share of whole plant dry matter increase correlated significantly with early late-period whole plant dry matter increase.
- Taxon
- Eleocharis kuroguwai OhwiEleocharis kuroguwait0
- Organ / stage
- tubere0
- Outcome
- ratio of the DMI of the tuber to that of the whole plante0
- Direction
- correlatede0
- Qualifier
- first 14 days of the late TFPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ratio of the DMI of the tuber to that of the whole plant during the late TFP was significantly correlated with the DMI of the whole plant during the first 14 days of the late TFP.”
t0“Eleocharis kuroguwai Ohwi”
Claim · model-written summary
Whole plant dry matter increase correlated with stem surface area and net assimilation ratio after unshading.
- Taxon
- Eleocharis kuroguwai OhwiEleocharis kuroguwait0
- Organ / stage
- steme0
- Outcome
- DMI of the whole plante0
- Direction
- correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the late TFP after the exposure to unshaded daylight, DMI of the whole plant correlated with the surface area of the stem (SAS) and net assimilation ratio (NAR)”
t0“Eleocharis kuroguwai Ohwi”
Claim · model-written summary
Stem surface area correlated with stem dry weight and specific stem surface area.
- Taxon
- Eleocharis kuroguwai OhwiEleocharis kuroguwait0
- Organ / stage
- steme0
- Outcome
- SASe0
- Direction
- correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the SAS correlated with the stem dry weight (DW) and specific stem‐surface area (SSA)”
t0“Eleocharis kuroguwai Ohwi”
Claim · model-written summary
Specific stem surface area negatively influenced net assimilation ratio.
- Taxon
- Eleocharis kuroguwai OhwiEleocharis kuroguwait0
- Organ / stage
- steme1
- Outcome
- NARe0
- Direction
- negatively influencede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SSA negatively influenced NAR”
e1“the surface area of the stem (SAS)”
t0“Eleocharis kuroguwai Ohwi”
Claim · model-written summary
Unshading increased net assimilation ratio.
- Taxon
- Eleocharis kuroguwai OhwiEleocharis kuroguwait0
- Treatment
- unshadinge0
- Outcome
- NARe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAR was increased by unshading”
t0“Eleocharis kuroguwai Ohwi”
Claim · model-written summary
Large stem surface area and high net assimilation ratio mitigated the effect of shading-related stem dry weight reduction on whole plant dry matter increase.
- Taxon
- Eleocharis kuroguwai OhwiEleocharis kuroguwait0
- Organ / stage
- steme0
- Outcome
- DMI of the whole plante0
- Qualifier
- large SAS and high NARe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of the decrease of the stem DW due to shading on the DMI of the whole plant was mitigated by the large SAS and high NAR”
t0“Eleocharis kuroguwai Ohwi”