Abstract
The effects of grafting on Na and Cl(-) uptake and distribution in plant tissues were quantified in a greenhouse experiment using six combinations of melon (Cucumis melo L. cv. Arava) and pumpkin (Cucurbita maxima Duchesne×Cucurbita moschata Duchesne cv. TZ-148): non-grafted, self-grafted, melons grafted on pumpkins, and pumpkins grafted on melons. Total Na concentration in shoots of plants with pumpkin or melon rootstocks was <60 mmol kg(-1) and >400 mmol kg(-1), respectively, regardless of the scion. In contrast, shoot Cl(-) concentrations were quite similar among the different scion-rootstock combinations. Na concentrations in exudates from cut stems of plants with a pumpkin rootstock were very low (<0.18 mM), whereas those in the exudates of plants with melon rootstocks ranged from 4.7 mM to 6.2 mM, and were quite similar to the Na concentration in the irrigation water. Root Na concentrations averaged 11.7 times those in the shoots of plants with pumpkin rootstocks, while in plants with melon rootstocks, values were similar. Two mechanisms could explain the decrease in shoot Na concentrations in plants with pumpkin rootstocks: (i) Na exclusion by the pumpkin roots; and (ii) Na retention and accumulation within the pumpkin rootstock. Quantitative analysis indicated that the pumpkin roots excluded ∼74% of available Na, while there was nearly no Na exclusion by melon roots. Na retention by the pumpkin rootstocks decreased its amount in the shoot by an average 46.9% compared with uniform Na distribution throughout the plant. In contrast, no retention of Na could be found in plants grafted on melons.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Pumpkin rootstocks gave shoot sodium below 60 mmol kg(-1), whereas melon rootstocks gave above 400 mmol kg(-1).
- Taxon
- melon
.jpg?width=60)
Cucumis melot0 - Treatment
- pumpkin or melon rootstockse0
- Outcome
- Na concentration in shootse0
- Value
- <60 mmol kg(-1)e0
- Comparator
- melon rootstockse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Total Na concentration in shoots of plants with pumpkin or melon rootstocks was <60 mmol kg(-1) and >400 mmol kg(-1), respectively, regardless of the scion.”
t0“melon and Cucurbita plants”
Claim · model-written summary
Shoot chloride concentrations were similar among graft combinations.
- Taxon
- melonCucumis melot0
- Outcome
- shoot Cl(-) concentrationse0
- Direction
- quite similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot Cl(-) concentrations were quite similar among the different scion-rootstock combinations.”
t0“melon and Cucurbita plants”
Claim · model-written summary
Pumpkin rootstock stem exudates contained less than 0.18 mM sodium.
Verbatim
e0“Na concentrations in exudates from cut stems of plants with a pumpkin rootstock were very low (<0.18 mM)”
Claim · model-written summary
Melon rootstock stem exudates had sodium between 4.7 and 6.2 mM.
- Taxon
- melonCucumis meloe0
- Outcome
- exudatese0
- Value
- 4.7 mM to 6.2 mMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those in the exudates of plants with melon rootstocks ranged from 4.7 mM to 6.2 mM”
Claim · model-written summary
Pumpkin-rooted plants had root sodium concentrations averaging 11.7 times shoot concentrations.
Verbatim
e0“Root Na concentrations averaged 11.7 times those in the shoots of plants with pumpkin rootstocks”
Claim · model-written summary
Pumpkin roots excluded approximately 74% of available sodium.
Verbatim
e0“pumpkin roots excluded ∼74% of available Na”
Claim · model-written summary
Melon roots showed nearly no sodium exclusion.
- Taxon
- melonCucumis meloe0
- Outcome
- Na exclusione0
- Direction
- nearly noe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was nearly no Na exclusion by melon roots”
Claim · model-written summary
Pumpkin rootstock retention reduced shoot sodium by 46.9% on average against uniform distribution.
Verbatim
e0“Na retention by the pumpkin rootstocks decreased its amount in the shoot by an average 46.9% compared with uniform Na distribution throughout the plant.”
Claim · model-written summary
Plants grafted on melons showed no sodium retention.
- Taxon
- melonsCucumis meloe0
- Outcome
- retention of Nae0
- Direction
- no retentione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no retention of Na could be found in plants grafted on melons”
The same questions in other papers
grafting · nutrient: content · Cucumis melo (muskmelon)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 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.