Abstract
The root system of rice nursling seedlings is composed of a seminal root and crown roots from coleoptilar node. The roots were cut at various locations, and the treated seedlings were grown for seven days after transplanting to clarify the role of the crown roots in the rooting and development. Even when the roots were cut at 1.5 cm from the base of the root, growth of the seedlings was similar to that of the control. However, growth was significantly reduced when cut at a length of 0.5 cm from the base. The growth of transplanted seedlings, including the emergence rate of the third leaf, was barely influenced by excision of the root tips of a seminal root and four crown roots, but growth was severely reduced by cutting at the bases of a seminal root and the longest crown root. The growth of the transplanted seedlings decreased in accordance with the total root length remaining after the treatments. These results indicate that the rooting and development of transplanted nursling seedlings are reduced according to the total length of the root remaining after treatment. It is conjectured that the crown roots from the coleoptilar node play a large role in the absorption of water and nutrients just after transplanting, and promote the rooting and development of transplanted nursling seedlings through emergence of the first nodal roots.
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Claims 7
Claim · model-written summary
Rice nursling root systems contain a seminal root and crown roots from the coleoptilar node.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- nursling seedlingse0
- Outcome
- a seminal root and crown roots from coleoptilar nodee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root system of rice nursling seedlings is composed of a seminal root and crown roots from coleoptilar node.”
Claim · model-written summary
Cutting roots 1.5 cm from the base gave growth similar to the control.
- Taxon
- riceOryza sativat0
- Treatment
- roots were cut at 1.5 cm from the base of the roote0
- Outcome
- growth of the seedlingse0
- Direction
- similare0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Even when the roots were cut at 1.5 cm from the base of the root, growth of the seedlings was similar to that of the control.”
t0“Rice Nursling Seedlings”
Claim · model-written summary
Cutting roots to 0.5 cm significantly reduced growth.
- Taxon
- RiceOryza sativat0
- Treatment
- cut at a length of 0.5 cm from the basee0
- Outcome
- growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth was significantly reduced when cut at a length of 0.5 cm from the base”
t0“Rice Nursling Seedlings”
Claim · model-written summary
Excising tips of a seminal and four crown roots barely influenced growth and third-leaf emergence.
- Taxon
- RiceOryza sativat0
- Treatment
- excision of the root tips of a seminal root and four crown rootse0
- Outcome
- growth of transplanted seedlings, including the emergence rate of the third leafe0
- Direction
- barely influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth of transplanted seedlings, including the emergence rate of the third leaf, was barely influenced by excision of the root tips of a seminal root and four crown roots”
t0“Rice Nursling Seedlings”
Claim · model-written summary
Cutting the bases of a seminal and longest crown root severely reduced growth.
- Taxon
- RiceOryza sativat0
- Treatment
- cutting at the bases of a seminal root and the longest crown roote0
- Outcome
- growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth was severely reduced by cutting at the bases of a seminal root and the longest crown root”
t0“Rice Nursling Seedlings”
Claim · model-written summary
Transplanted seedling growth decreased with remaining total root length.
- Taxon
- RiceOryza sativat0
- Organ / stage
- total root length remaininge0
- Outcome
- growth of the transplanted seedlingse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth of the transplanted seedlings decreased in accordance with the total root length remaining after the treatments.”
t0“Rice Nursling Seedlings”
Claim · model-written summary
Authors conjecture crown roots promote post-transplant rooting and development through water and nutrient uptake.
- Taxon
- RiceOryza sativat0
- Organ / stage
- crown roots from the coleoptilar nodee0
- Outcome
- rooting and development of transplanted nursling seedlingse0
- Qualifier
- absorption of water and nutrients just after transplantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is conjectured that the crown roots from the coleoptilar node play a large role in the absorption of water and nutrients just after transplanting, and promote the rooting and development of transplanted nursling seedlings through emergence of the first nodal roots.”
t0“Rice Nursling Seedlings”
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- positive
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See all 27 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.