Abstract
The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied and the possible role of cytokinins in the senescence of cotyledons of radish seedlings growing under water stress was examined.1) BA application to the above-ground parts (foliage leaves, cotyledons, and hypocotyls) of plants resulted in the increase in the distribution ratio of photosynthetic product to hypocotyls and to leaves (foliage leaves and cotyledons), and the decrease in the distribution to roots. The effect of BA on the change of distribution ratio was not observed in the water-stressed plants, except for the application of higher concentrations of BA.2) Yellowing and marked decrease in chlorophyll content were observed in the cotyledons of water-stressed plants. However, kinetin application could prevent the decrease in chlorophyll content in the cotyledons of water-stressed plants.3) Since the decrease in chlorophyll content in the cotyledons of young radish plants with no visible foliage leaves did not occur under the water stress, yellowing may depend on the presence of growing foliage leaves.4) Yellowing of cotyledons was observed when roots were removed but this phenomenon was not observed when kinetin was applied to the cut end of plants.5) The cytokinin-like activity in the extract of the water-stressed plants was lower than that of the control ones.
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Claims 8
Claim · model-written summary
BA application increases the distribution ratio of photosynthetic product to hypocotyls and leaves in radish
- Taxon
- radish
Raphanus sativuse0 - Material
- Riso Daikone0
- Organ / stage
- above-ground partse1
- Treatment
- BA applicatione1
- Outcome
- distribution ratio of photosynthetic product to hypocotyls and to leavese1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied”
e1“BA application to the above-ground parts (foliage leaves, cotyledons, and hypocotyls) of plants resulted in the increase in the distribution ratio of photosynthetic product to hypocotyls and to leaves (foliage leaves and cotyledons), and the decrease in the distribution to roots”
Claim · model-written summary
The effect of BA on the distribution ratio was not observed in water-stressed radish plants, except at higher BA concentrations
- Taxon
- radishRaphanus sativuse0
- Treatment
- BAe2
- Outcome
- change of distribution ratioe2
- Direction
- not observede2
- Qualifier
- except for the application of higher concentrations of BAe2
- Setting
- water-stressed plantse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied”
e2“The effect of BA on the change of distribution ratio was not observed in the water-stressed plants, except for the application of higher concentrations of BA”
Claim · model-written summary
BA application decreases the distribution of photosynthetic product to roots in radish
- Taxon
- radishRaphanus sativuse0
- Treatment
- BA applicatione1
- Outcome
- distribution to rootse1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied”
e1“BA application to the above-ground parts (foliage leaves, cotyledons, and hypocotyls) of plants resulted in the increase in the distribution ratio of photosynthetic product to hypocotyls and to leaves (foliage leaves and cotyledons), and the decrease in the distribution to roots”
Claim · model-written summary
Water stress markedly decreases chlorophyll content in radish cotyledons
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- cotyledonse3
- Treatment
- water-stressede3
- Outcome
- chlorophyll contente3
- Direction
- marked decreasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied”
e3“Yellowing and marked decrease in chlorophyll content were observed in the cotyledons of water-stressed plants”
Claim · model-written summary
Kinetin application could prevent the decrease in chlorophyll content in water-stressed radish cotyledons
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- cotyledonse4
- Treatment
- kinetin applicatione4
- Outcome
- decrease in chlorophyll contente4
- Direction
- prevente4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied”
e4“kinetin application could prevent the decrease in chlorophyll content in the cotyledons of water-stressed plants”
Claim · model-written summary
Yellowing of radish cotyledons may depend on the presence of growing foliage leaves
- Taxon
- radishRaphanus sativuse5
- Organ / stage
- cotyledonse5
- Outcome
- yellowinge5
- Qualifier
- presence of growing foliage leavese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Since the decrease in chlorophyll content in the cotyledons of young radish plants with no visible foliage leaves did not occur under the water stress, yellowing may depend on the presence of growing foliage leaves”
Claim · model-written summary
Yellowing of cotyledons occurs when roots are removed but not when kinetin is applied to the cut end
- Taxon
- radishRaphanus sativuse0
- Organ / stage
- cotyledonse6
- Treatment
- roots were removede6
- Outcome
- Yellowing of cotyledonse6
- Comparator
- kinetin was applied to the cut end of plantse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied”
e6“Yellowing of cotyledons was observed when roots were removed but this phenomenon was not observed when kinetin was applied to the cut end of plants”
Claim · model-written summary
Cytokinin-like activity in the extract of water-stressed radish plants is lower than in controls
- Taxon
- radishRaphanus sativuse0
- Treatment
- water-stressede7
- Outcome
- cytokinin-like activity in the extracte7
- Direction
- lowere7
- Comparator
- control onese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of benzylaminopurine (BA) on the growth of young radish plants (Raphanus sativus L. cv. Riso Daikon) was studied”
e7“The cytokinin-like activity in the extract of the water-stressed plants was lower than that of the control ones”
The same questions in other papers
kinetin · physiology: pigments · Raphanus sativus (radish)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
drought · physiology: pigments · Raphanus sativus (radish)Results agree
1 paper in the same direction as this paper
- no effect
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.