Abstract
In order to make clear the mechanism of reduction of water-content in rice plants by wind, we have studied on the water-contents of them.Results are as follows:(1) The water-contents in each organ of the rice plant grown under normal condition increased in order of ear, leaf and stem, and their variances decreased in the same order.(2) When the water supply from root was intercepted, the plants began to wilt. However, younger leaves showed a small decrease in the water-content, and had a large resistance against dehydration. Because the wilting occurs by a slight decrease in water-content, it is difficult to measure the decrease at the beginning of wilting.The reduction of water-content in the ear was smaller than that in the leaves, but it fluctuated by number of days after heading.The reduction of water-content was smallest in the stem.(3) The critical water-content for the recovery from wilting was different by the stage of growth of rice plants. Before milky ripe period it was about 50 per cent, and about 60 per cecnt in waxy ripe period.(4) The reduction of water-contents in each organ of rice plants treated by wind have been observed.In a leaf, the reduction of water-content was considerably large in the upper half part of leaf blade No differences in the reduction of water-content were recognized between the sites of leaves. The differences of water-content between the ears of treated and untreated were not clear in the present experiment.The reduction of water-content in the stem was smallest, but when the stem have had a young head before heading it was considerably large.Under the condition of stronger wind and of longer duration of treatment, the reduction of water-conteant was more remarkable.
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Claims 15
Claim · model-written summary
Under normal conditions, rice water content increased from ear to leaf to stem.
- Taxon
- rice plant
Oryza sativat0 - Organ / stage
- ear, leaf and steme0
- Outcome
- water-contentse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water-contents in each organ of the rice plant grown under normal condition increased in order of ear, leaf and stem”
t0“Rice Plant”
Claim · model-written summary
Water-content variance decreased from ear to leaf to stem.
- Taxon
- rice plantOryza sativat0
- Outcome
- variancese0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their variances decreased in the same order.”
t0“Rice Plant”
Claim · model-written summary
Rice plants began wilting when root water supply was intercepted.
- Taxon
- rice plantOryza sativat0
- Treatment
- water supply from root was interceptede0
- Outcome
- began to wilte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the water supply from root was intercepted, the plants began to wilt.”
t0“Rice Plant”
Claim · model-written summary
Younger leaves had a small decrease in water content and greater dehydration resistance.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- younger leavese0
- Outcome
- small decrease in the water-contente0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“younger leaves showed a small decrease in the water-content, and had a large resistance against dehydration.”
t0“Rice Plant”
Claim · model-written summary
The reduction of water content in ears was smaller than in leaves.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- eare0
- Outcome
- reduction of water-contente0
- Direction
- smallere0
- Comparator
- leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of water-content in the ear was smaller than that in the leaves”
t0“Rice Plant”
Claim · model-written summary
Ear water-content reduction fluctuated with days after heading.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- headinge0
- Outcome
- fluctuatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it fluctuated by number of days after heading.”
t0“Rice Plant”
Claim · model-written summary
Stem water-content reduction was the smallest among organs after water-supply interception.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- steme0
- Outcome
- reduction of water-contente0
- Direction
- smalleste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of water-content was smallest in the stem.”
t0“Rice Plant”
Claim · model-written summary
Critical water content for recovery from wilting was about 50 per cent before milky ripe period.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- milky ripe periode0
- Outcome
- critical water-content for the recovery from wiltinge0
- Value
- about 50 per cente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The critical water-content for the recovery from wilting was different by the stage of growth of rice plants. Before milky ripe period it was about 50 per cent”
t0“Rice Plant”
Claim · model-written summary
Critical water content for wilting recovery was about 60 per cecnt in waxy ripe period.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- waxy ripe periode0
- Outcome
- critical water-content for the recovery from wiltinge0
- Value
- about 60 per cecnte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The critical water-content for the recovery from wilting was different by the stage of growth of rice plants. Before milky ripe period it was about 50 per cent, and about 60 per cecnt in waxy ripe period.”
t0“Rice Plant”
Claim · model-written summary
Wind reduced water content considerably in the upper half of the leaf blade.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- upper half part of leaf bladee0
- Treatment
- winde0
- Outcome
- reduction of water-contente0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of water-contents in each organ of rice plants treated by wind have been observed.In a leaf, the reduction of water-content was considerably large in the upper half part of leaf blade”
t0“Rice Plant”
Claim · model-written summary
Leaf sites did not differ in reduction of water content under wind treatment.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- leavese0
- Outcome
- reduction of water-contente0
- Direction
- No differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No differences in the reduction of water-content were recognized between the sites of leaves.”
t0“Rice Plant”
Claim · model-written summary
Differences in ear water content between wind-treated and untreated plants were unclear.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- earse0
- Treatment
- treatede0
- Outcome
- water-contente0
- Comparator
- untreatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The differences of water-content between the ears of treated and untreated were not clear in the present experiment.”
t0“Rice Plant”
Claim · model-written summary
Stem water-content reduction under wind was smallest.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- steme0
- Treatment
- winde0
- Outcome
- reduction of water-contente0
- Direction
- smalleste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of water-contents in each organ of rice plants treated by wind have been observed.In a leaf, the reduction of water-content was considerably large in the upper half part of leaf blade No differences in the reduction of water-content were recognized between the sites of leaves. The differences of water-content between the ears of treated and untreated were not clear in the present experiment.The reduction of water-content in the stem was smallest”
t0“Rice Plant”
Claim · model-written summary
A stem bearing a young head before heading had considerably large water-content reduction under wind.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- steme0
- Treatment
- winde0
- Outcome
- reduction of water-contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction of water-contents in each organ of rice plants treated by wind have been observed.In a leaf, the reduction of water-content was considerably large in the upper half part of leaf blade No differences in the reduction of water-content were recognized between the sites of leaves. The differences of water-content between the ears of treated and untreated were not clear in the present experiment.The reduction of water-content in the stem was smallest, but when the stem have had a young head before heading it was considerably large.”
t0“Rice Plant”
Claim · model-written summary
Stronger wind and longer exposure produced more marked reduction of water content.
- Taxon
- rice plantOryza sativat0
- Treatment
- stronger wind and of longer duration of treatmente0
- Outcome
- reduction of water-conteante0
- Direction
- more remarkablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the condition of stronger wind and of longer duration of treatment, the reduction of water-conteant was more remarkable.”
t0“Rice Plant”
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