Abstract
Grafting of Cucurbitaceae species to some rootstocks seems to be especially beneficial for the nitrogen nutrition of these plants. Moreover, melons (Cucumis melo L.) have been considered among those plants that could benefit from the addition of Silicon (Si) in the Nutrient Solution (NS). Thus, two experiments were carried out in the following order: (i) it was investigated how grafting affects nitrate absorption (following the disappearance of nitrates from NS), leaf water relations, leaf gas exchange, chlorophyll parameters and antioxidant activity, and (ii) it was also assayed which of the aforementioned physiological factors could be associated with Si supply in melon plants at early developmental stage when metabolism is intense. Results revealed that grafting and Si supply could improve photosynthesis, nitrate absorption, and biomass production in melon plants with respect to non-grafted or plants not receiving extra Si. Grafting melon on Cucurbita rootstock improved photosynthetic performance associated with higher antioxidant activity in melon leaves. Silicon supplementation results lend support to an active role of Si in biochemical processes at chloroplast level in melons. Increased assimilation rates in grafted and Si treated plants (20 to 35%), resulted in higher nitrate depletion from the medium (17 to 18%), which boosted shoot biomass production (23 to 26%) compared to the control plants. Our results suggest that grafting and Si supply in melon plants may lead to a better crop performance and a lower environmental impact of greenhouse fertigation effluents with respect to nitrate leaching, in some instances.
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Claims 8
Claim · model-written summary
Grafting and Si supply improved photosynthesis and nitrate absorption.
- Taxon
- melon plants
.jpg?width=60)
Cucumis meloe0 - Treatment
- grafting and Si supplye0
- Outcome
- photosynthesis, nitrate absorptione0
- Direction
- improvee0
- Comparator
- non-grafted or plants not receiving extra Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“grafting and Si supply could improve photosynthesis, nitrate absorption, and biomass production in melon plants with respect to non-grafted or plants not receiving extra Si”
Claim · model-written summary
Grafting and Si supply improved melon biomass production.
- Taxon
- melon plantsCucumis meloe0
- Treatment
- grafting and Si supplye0
- Outcome
- biomass productione0
- Direction
- improvee0
- Comparator
- non-grafted or plants not receiving extra Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grafting and Si supply could improve photosynthesis, nitrate absorption, and biomass production in melon plants with respect to non-grafted or plants not receiving extra Si”
Claim · model-written summary
Cucurbita rootstock grafting improved photosynthetic performance and was associated with higher leaf antioxidant activity.
- Taxon
- melonCucumis meloe0
- Organ / stage
- leavese0
- Treatment
- Grafting melon on Cucurbita rootstocke0
- Outcome
- photosynthetic performancee0
- Direction
- improvede0
- Qualifier
- higher antioxidant activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grafting melon on Cucurbita rootstock improved photosynthetic performance associated with higher antioxidant activity in melon leaves”
Claim · model-written summary
Silicon supplementation supported an active Si role in melon chloroplast biochemical processes.
- Taxon
- melonsCucumis meloe0
- Treatment
- Silicon supplementatione0
- Outcome
- biochemical processes at chloroplast levele0
- Qualifier
- an active role of Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon supplementation results lend support to an active role of Si in biochemical processes at chloroplast level in melons”
Claim · model-written summary
Assimilation rates in grafted and Si-treated plants increased 20 to 35%.
- Taxon
- Melon (Cucumis melo L.) PlantsCucumis melot0
- Treatment
- grafted and Si treated plantse0
- Outcome
- assimilation ratese0
- Direction
- Increasede0
- Value
- 20 to 35%e0
- Comparator
- the control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased assimilation rates in grafted and Si treated plants (20 to 35%), resulted in higher nitrate depletion from the medium (17 to 18%), which boosted shoot biomass production (23 to 26%) compared to the control plants”
t0“Melon (Cucumis melo L.) Plants”
Claim · model-written summary
Nitrate depletion from the medium was higher by 17 to 18% in grafted and Si-treated plants.
- Taxon
- Melon (Cucumis melo L.) PlantsCucumis melot0
- Treatment
- grafted and Si treated plantse0
- Outcome
- nitrate depletion from the mediume0
- Direction
- highere0
- Value
- 17 to 18%e0
- Comparator
- the control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased assimilation rates in grafted and Si treated plants (20 to 35%), resulted in higher nitrate depletion from the medium (17 to 18%), which boosted shoot biomass production (23 to 26%) compared to the control plants”
t0“Melon (Cucumis melo L.) Plants”
Claim · model-written summary
Shoot biomass production increased 23 to 26% in grafted and Si-treated plants.
- Taxon
- Melon (Cucumis melo L.) PlantsCucumis melot0
- Treatment
- grafted and Si treated plantse0
- Outcome
- shoot biomass productione0
- Direction
- boostede0
- Value
- 23 to 26%e0
- Comparator
- the control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased assimilation rates in grafted and Si treated plants (20 to 35%), resulted in higher nitrate depletion from the medium (17 to 18%), which boosted shoot biomass production (23 to 26%) compared to the control plants”
t0“Melon (Cucumis melo L.) Plants”
Claim · model-written summary
The authors suggest grafting and Si supply may improve melon crop performance and lower nitrate leaching in some instances.
- Taxon
- melon plantsCucumis meloe0
- Treatment
- grafting and Si supplye0
- Outcome
- better crop performancee0
- Qualifier
- in some instancese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grafting and Si supply in melon plants may lead to a better crop performance and a lower environmental impact of greenhouse fertigation effluents with respect to nitrate leaching, in some instances”
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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.