Abstract
Many studies have demonstrated that arbuscular mycorrhizal fungi (AMF) and deficit irrigation (DI) have positive effects on the fruit yield or quality. This study aims to test whether the watermelon sugar content and yield can be improved by appropriate amounts of AMF and DI methods and to clarify the underlying physiological mechanism. Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF in a randomised complete block design with five replications. The results showed that DI significantly reduced the relative water content (RWC), PN, alkaline α-galactosidase activity, but increased the insoluble acid invertase (IAI), sucrose synthase (SuSy) and sucrose phosphate synthase (SPS) activities compared with the well-watered (WW) treatment, which led to a decrease in the fruit yield and an increase in the fruit sugar content. Although the AMF improved the RWC, PN and alkaline α-galactosidase, IAI, SuSy and SPS activities in all the watermelon lines under both the DI and WW conditions, the improvement magnitude of these parameters was more pronounced in the pumpkin-root watermelon lines than the corresponding own-root watermelon lines, especially under the DI condition. The integrated application of AMF and DI increased the fruit yield to a level similar to the WW value in the pumpkin-root watermelon lines and sugar content to an optimal level in all the watermelon lines.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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
Deficit irrigation significantly reduced relative water content, PN and alkaline α-galactosidase activity in watermelon compared with well-watered plants.
- Taxon
- watermelon
Citrullus lanatuse0 - Treatment
- DIe1
- Outcome
- relative water content (RWC), PN, alkaline α-galactosidase activitye1
- Direction
- reducede1
- Comparator
- well-watered (WW) treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e1“DI significantly reduced the relative water content (RWC), PN, alkaline α-galactosidase activity, but increased the insoluble acid invertase (IAI), sucrose synthase (SuSy) and sucrose phosphate synthase (SPS) activities compared with the well-watered (WW) treatment”
e2“DI significantly reduced the relative water content (RWC), PN, alkaline α-galactosidase activity, but increased the insoluble acid invertase (IAI), sucrose synthase (SuSy) and sucrose phosphate synthase (SPS) activities compared with the well-watered (WW) treatment”
Claim · model-written summary
Deficit irrigation increased insoluble acid invertase, sucrose synthase and sucrose phosphate synthase activities in watermelon compared with well-watered plants.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- DIe1
- Outcome
- insoluble acid invertase (IAI), sucrose synthase (SuSy) and sucrose phosphate synthase (SPS) activitiese1
- Direction
- increasede1
- Comparator
- well-watered (WW) treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e1“DI significantly reduced the relative water content (RWC), PN, alkaline α-galactosidase activity, but increased the insoluble acid invertase (IAI), sucrose synthase (SuSy) and sucrose phosphate synthase (SPS) activities compared with the well-watered (WW) treatment”
e2“DI significantly reduced the relative water content (RWC), PN, alkaline α-galactosidase activity, but increased the insoluble acid invertase (IAI), sucrose synthase (SuSy) and sucrose phosphate synthase (SPS) activities compared with the well-watered (WW) treatment”
Claim · model-written summary
AMF improved relative water content, PN and alkaline α-galactosidase activity in all watermelon lines under both DI and well-watered conditions.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- AMFe3
- Interactor
- AMFe3symbiont
- Outcome
- RWC, PN and alkaline α-galactosidasee3
- Direction
- improvede3
- Qualifier
- under both the DI and WW conditionse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e3“Although the AMF improved the RWC, PN and alkaline α-galactosidase, IAI, SuSy and SPS activities in all the watermelon lines under both the DI and WW conditions, the improvement magnitude of these parameters was more pronounced in the pumpkin-root watermelon lines than the corresponding own-root watermelon lines, especially under the DI condition”
Claim · model-written summary
AMF improved insoluble acid invertase, sucrose synthase and sucrose phosphate synthase activities in all watermelon lines under both DI and well-watered conditions.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- AMFe4
- Interactor
- AMFe4symbiont
- Outcome
- IAI, SuSy and SPS activitiese4
- Direction
- improvede4
- Qualifier
- under both the DI and WW conditionse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e4“Although the AMF improved the RWC, PN and alkaline α-galactosidase, IAI, SuSy and SPS activities in all the watermelon lines under both the DI and WW conditions, the improvement magnitude of these parameters was more pronounced in the pumpkin-root watermelon lines than the corresponding own-root watermelon lines, especially under the DI condition”
Claim · model-written summary
The AMF improvement of these physiological parameters was more pronounced in pumpkin-rootstock watermelon lines than in own-root lines, especially under DI.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- pumpkin-root watermelon linese5
- Treatment
- AMFe5
- Interactor
- AMFe5symbiont
- Outcome
- improvement magnitude of these parameterse5
- Direction
- more pronouncede5
- Qualifier
- especially under the DI conditione5
- Comparator
- corresponding own-root watermelon linese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e5“Although the AMF improved the RWC, PN and alkaline α-galactosidase, IAI, SuSy and SPS activities in all the watermelon lines under both the DI and WW conditions, the improvement magnitude of these parameters was more pronounced in the pumpkin-root watermelon lines than the corresponding own-root watermelon lines, especially under the DI condition”
Claim · model-written summary
Integrated AMF and DI increased fruit yield in pumpkin-root watermelon lines to a level similar to the well-watered value.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- pumpkin-root watermelon linese6
- Treatment
- integrated application of AMF and DIe6
- Interactor
- AMFe6symbiont
- Outcome
- fruit yielde6
- Direction
- increasede6
- Qualifier
- to a level similar to the WW valuee6
- Comparator
- WW valuee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e6“The integrated application of AMF and DI increased the fruit yield to a level similar to the WW value in the pumpkin-root watermelon lines and sugar content to an optimal level in all the watermelon lines”
Claim · model-written summary
Integrated AMF and DI increased sugar content to an optimal level in all watermelon lines.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- integrated application of AMF and DIe7
- Interactor
- AMFe7symbiont
- Outcome
- sugar contente7
- Direction
- increasede7
- Qualifier
- to an optimal levele7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e7“The integrated application of AMF and DI increased the fruit yield to a level similar to the WW value in the pumpkin-root watermelon lines and sugar content to an optimal level in all the watermelon lines”
Claim · model-written summary
Deficit irrigation led to a lower fruit yield than well-watered plants.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- DIe2
- Outcome
- fruit yielde1
- Direction
- decreasee1
- Comparator
- well-watered (WW) treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e1“compared with the well-watered (WW) treatment, which led to a decrease in the fruit yield and an increase in the fruit sugar content”
e2“DI significantly reduced”
Claim · model-written summary
Deficit irrigation led to a higher fruit sugar content than well-watered plants.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- DIe2
- Outcome
- fruit sugar contente1
- Direction
- increasee1
- Comparator
- well-watered (WW) treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Diploid and triploid watermelon cultivars and their pumpkin rootstock-grafted seedlings were treated with AMF, DI and DI + AMF”
e1“compared with the well-watered (WW) treatment, which led to a decrease in the fruit yield and an increase in the fruit sugar content”
e2“DI significantly reduced”
The same questions in other papers
irrigation · quality: sugar starch · Citrullus lanatus (watermelon)Positive and negative results
1 paper in the same direction as this paper · 7 in the opposite direction
- negative
- no effect
- no effect
5 papers more in this group
See all 9 papers →irrigation · yield · Citrullus lanatus (watermelon)Positive and negative results
30 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- negative
36 papers more in this group
See all 40 papers →mycorrhiza · physiology: water · Citrullus lanatus (watermelon)Results agree
1 paper in the same direction as this paper
- positive
mycorrhiza · molecular: metabolites · Citrullus lanatus (watermelon)Results agree
1 paper in the same direction as this paper
- positive
mycorrhiza · yield · Citrullus lanatus (watermelon)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.