Abstract
Growth of the above-and under-ground parts of rice plant was observed to clarify their developmental phase coincidence. 1. The concurrence among the leaf emergence, the internode elongation, and the ascent of node-locus where the emergence of new roots were prevailing in the main stem is presumed as follows: At the time of emergence of the N-th leaf (denote the node number from which the N-th leaf emerged as n), the (n-2)∼(n-3)-th internodes attained their full lengths, and crown root emergence was prevailing on the (n-3)-th node. 2. But, at the conversion stage of leaf emergence, the ascending pace of root emarging locus and the rate of root number increase were checked, and at the stage of uppermost leaf emergence, crown root development was observed on the (n-4)-th node. 3. The total area of the cross section of secondary xylems per single root measured larger as the root emerging node-locus ascended higher, up to the conversion stage of leaf emergence, and it diminished, thereafter. 4. The secondary thickening of the metaxylem was not observed in the root of any locus.
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Claims 7
Claim · model-written summary
At N-th leaf emergence, internodes n-2 to n-3 reached full length.
- Taxon
- rice plant
Oryza sativat0 - Organ / stage
- internodese0
- Outcome
- attained their full lengthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the time of emergence of the N-th leaf (denote the node number from which the N-th leaf emerged as n), the (n-2)∼(n-3)-th internodes attained their full lengths”
t0“Rice Plant”
Claim · model-written summary
Crown roots emerged predominantly from node n-3 at N-th leaf emergence.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- crown roote0
- Outcome
- crown root emergence was prevailing on the (n-3)-th nodee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crown root emergence was prevailing on the (n-3)-th node.”
t0“Rice Plant”
Claim · model-written summary
Root emergence locus ascent and root number increase slowed at leaf emergence conversion.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- conversion stage of leaf emergencee0
- Outcome
- ascending pace of root emarging locus and the rate of root number increasee0
- Direction
- checkede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the conversion stage of leaf emergence, the ascending pace of root emarging locus and the rate of root number increase were checked”
t0“Rice Plant”
Claim · model-written summary
At uppermost leaf emergence, crown roots developed at node n-4.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- crown roote0
- Outcome
- crown root development was observed on the (n-4)-th nodee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the stage of uppermost leaf emergence, crown root development was observed on the (n-4)-th node.”
t0“Rice Plant”
Claim · model-written summary
Secondary xylem cross-sectional area per root increased with ascending root node until conversion stage.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- root emerging node-locuse0
- Outcome
- total area of the cross section of secondary xylems per single roote0
- Direction
- largere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total area of the cross section of secondary xylems per single root measured larger as the root emerging node-locus ascended higher, up to the conversion stage of leaf emergence”
t0“Rice Plant”
Claim · model-written summary
Secondary xylem cross-sectional area diminished after conversion stage.
- Taxon
- rice plantOryza sativat0
- Outcome
- total area of the cross section of secondary xylems per single roote0
- Direction
- diminishede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total area of the cross section of secondary xylems per single root measured larger as the root emerging node-locus ascended higher, up to the conversion stage of leaf emergence, and it diminished, thereafter.”
t0“Rice Plant”
Claim · model-written summary
Secondary thickening of root metaxylem was absent at every locus.
- Taxon
- rice plantOryza sativat0
- Organ / stage
- roote0
- Outcome
- secondary thickening of the metaxyleme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The secondary thickening of the metaxylem was not observed in the root of any locus.”
t0“Rice Plant”