Paper · 2020 · DOAJ (DOAJ: Directory of Open Access Journals)

Effect of Foliar Application of Salicylic Acid on Yield and Yield Components of Pumpkin under Different Water Deficienies

Vahideh Biyare; Farid Shekari; Saeid Seifzadeh; et al.

20
claims
40
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by-sa

Abstract

Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds. The response of pumpkin was examined against controlled water deficiency with spraying salicylic acid under field conditions in 2015 and 2016 in split plot experiment based on complete randomized block design. The plants sprayed with 0, 0.5, 1 and 1.5 mM concentrations of salicylic acid at 5-6 leaf stages. After 15 days plants exposed to -0.3, -1.2 and -1.8 MPa water deficiency. Increasing water deficiency reduced RWC, chlorophyll and carotenoids content, plant height, number of nodes and branches per plant, fruit yield, fruit diameter, seed yield, number of seed per fruit and weight of 1000 seeds while it and also increased the diameter of mesocarp especially in -1.8 MPa treated plants. On the contrary, spraying with salicylic acid resulted in significant increase in RWC, chlorophyll and carotenoids contents, plant height, number of nodes and branches per plant, fruit yield, diameter of fruit, seed yield, number of seed per fruit and weight of 1000 seeds. Haghest salicylic acid effect observed at 1.5 mM concentration. Most of traits under study depicated their significant reduction at -1.8 MPa water deficiency, while other traits like leaf water content, plant height, chlorophyll a, b and total chlorophyll content, nodes per plant, number of branches and mesocarp diameter were reduced at -1.2 MPa. On the other hand, seed per fruit was increased significantly at -1.2 MPa as compared to -0.3 MPa water deficiency. The main reason for increment of seed number per fruit was due to reduction in mesocarp diameter and its weight. It seems that water deficiency changed the partitioning pattern of assimilates from fruit and shifted them to seeds against mesocarp or other parts of fruit. Among the yield components, seed number per fruit and number of fruit per land area had the most effect on yield formation. The variation in seed weight was not significant. According to results, pumpkin may considered as a tolerant plant to soil suction till -1.2 MPa, without a significant reduction in seed yield.

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Claims 20

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing water deficiency reduced RWC, chlorophyll and carotenoids content of pumpkin.

Taxon
Pumpkine0
Treatment
Increasing water deficiencye1
Outcome
RWC, chlorophyll and carotenoids contente1
Direction
reducede1

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e1

“Increasing water deficiency reduced RWC, chlorophyll and carotenoids content, plant height, number of nodes and branches per plant, fruit yield, fruit diameter, seed yield, number of seed per fruit and weight of 1000 seeds while it and also increased the diameter of mesocarp especially in -1.8 MPa treated plants”

✓ located verbatim in the source · abstract, characters 472–785 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing water deficiency reduced plant height, nodes and branches per plant, and fruit yield of pumpkin.

Taxon
Pumpkine0
Treatment
Increasing water deficiencye1
Outcome
plant height, number of nodes and branches per plant, fruit yielde1
Direction
reducede1

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e1

“Increasing water deficiency reduced RWC, chlorophyll and carotenoids content, plant height, number of nodes and branches per plant, fruit yield, fruit diameter, seed yield, number of seed per fruit and weight of 1000 seeds while it and also increased the diameter of mesocarp especially in -1.8 MPa treated plants”

✓ located verbatim in the source · abstract, characters 472–785 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing water deficiency reduced fruit diameter, seed yield and number of seeds per fruit of pumpkin.

Taxon
Pumpkine0
Treatment
Increasing water deficiencye1
Outcome
fruit diameter, seed yield, number of seed per fruite1
Direction
reducede1

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e1

“Increasing water deficiency reduced RWC, chlorophyll and carotenoids content, plant height, number of nodes and branches per plant, fruit yield, fruit diameter, seed yield, number of seed per fruit and weight of 1000 seeds while it and also increased the diameter of mesocarp especially in -1.8 MPa treated plants”

✓ located verbatim in the source · abstract, characters 472–785 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing water deficiency reduced the weight of 1000 seeds of pumpkin.

Taxon
Pumpkine0
Treatment
Increasing water deficiencye1
Outcome
weight of 1000 seedse1
Direction
reducede1

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e1

“Increasing water deficiency reduced RWC, chlorophyll and carotenoids content, plant height, number of nodes and branches per plant, fruit yield, fruit diameter, seed yield, number of seed per fruit and weight of 1000 seeds while it and also increased the diameter of mesocarp especially in -1.8 MPa treated plants”

✓ located verbatim in the source · abstract, characters 472–785 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing water deficiency increased the diameter of pumpkin mesocarp, especially at -1.8 MPa.

Taxon
Pumpkine0
Treatment
Increasing water deficiencye1
Outcome
diameter of mesocarpe1
Direction
increasede1
Qualifier
-1.8 MPa treated plantse1

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e1

“Increasing water deficiency reduced RWC, chlorophyll and carotenoids content, plant height, number of nodes and branches per plant, fruit yield, fruit diameter, seed yield, number of seed per fruit and weight of 1000 seeds while it and also increased the diameter of mesocarp especially in -1.8 MPa treated plants”

✓ located verbatim in the source · abstract, characters 472–785 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying salicylic acid increased RWC, chlorophyll and carotenoids contents of pumpkin significantly.

Taxon
Pumpkine0
Treatment
spraying with salicylic acide2
Outcome
RWC, chlorophyll and carotenoids contentse2
Direction
increasee2

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e2

“spraying with salicylic acid resulted in significant increase in RWC, chlorophyll and carotenoids contents, plant height, number of nodes and branches per plant, fruit yield, diameter of fruit, seed yield, number of seed per fruit and weight of 1000 seeds”

✓ located verbatim in the source · abstract, characters 804–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying salicylic acid increased plant height, nodes and branches per plant, and fruit yield of pumpkin significantly.

Taxon
Pumpkine0
Treatment
spraying with salicylic acide2
Outcome
plant height, number of nodes and branches per plant, fruit yielde2
Direction
increasee2

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e2

“spraying with salicylic acid resulted in significant increase in RWC, chlorophyll and carotenoids contents, plant height, number of nodes and branches per plant, fruit yield, diameter of fruit, seed yield, number of seed per fruit and weight of 1000 seeds”

✓ located verbatim in the source · abstract, characters 804–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying salicylic acid increased diameter of fruit, seed yield and number of seeds per fruit of pumpkin significantly.

Taxon
Pumpkine0
Treatment
spraying with salicylic acide2
Outcome
diameter of fruit, seed yield, number of seed per fruite2
Direction
increasee2

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e2

“spraying with salicylic acid resulted in significant increase in RWC, chlorophyll and carotenoids contents, plant height, number of nodes and branches per plant, fruit yield, diameter of fruit, seed yield, number of seed per fruit and weight of 1000 seeds”

✓ located verbatim in the source · abstract, characters 804–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying salicylic acid increased the weight of 1000 seeds of pumpkin significantly.

Taxon
Pumpkine0
Treatment
spraying with salicylic acide2
Outcome
weight of 1000 seedse2
Direction
increasee2

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e2

“spraying with salicylic acid resulted in significant increase in RWC, chlorophyll and carotenoids contents, plant height, number of nodes and branches per plant, fruit yield, diameter of fruit, seed yield, number of seed per fruit and weight of 1000 seeds”

✓ located verbatim in the source · abstract, characters 804–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest salicylic acid effect on pumpkin was at 1.5 mM.

Taxon
Pumpkine0
Treatment
salicylic acide3
Outcome
salicylic acid effecte3
Direction
higherinferrede3
Qualifier
1.5 mM concentratione3

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e3

“Haghest salicylic acid effect observed at 1.5 mM concentration”

✓ located verbatim in the source · abstract, characters 1061–1123 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Most traits of pumpkin showed significant reduction at -1.8 MPa water deficiency.

Taxon
Pumpkine0
Treatment
-1.8 MPa water deficiencye4
Outcome
Most of traits under studye4
Direction
reductione4

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e4

“Most of traits under study depicated their significant reduction at -1.8 MPa water deficiency, while other traits like leaf water content, plant height, chlorophyll a, b and total chlorophyll content, nodes per plant, number of branches and mesocarp diameter were reduced at -1.2 MPa”

✓ located verbatim in the source · abstract, characters 1125–1408 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaf water content and plant height of pumpkin were reduced at -1.2 MPa.

Taxon
Pumpkine0
Treatment
-1.2 MPae4
Outcome
leaf water content, plant heighte4
Direction
reducede4

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e4

“Most of traits under study depicated their significant reduction at -1.8 MPa water deficiency, while other traits like leaf water content, plant height, chlorophyll a, b and total chlorophyll content, nodes per plant, number of branches and mesocarp diameter were reduced at -1.2 MPa”

✓ located verbatim in the source · abstract, characters 1125–1408 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chlorophyll a, b and total chlorophyll content of pumpkin were reduced at -1.2 MPa.

Taxon
Pumpkine0
Treatment
-1.2 MPae4
Outcome
chlorophyll a, b and total chlorophyll contente4
Direction
reducede4

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e4

“Most of traits under study depicated their significant reduction at -1.8 MPa water deficiency, while other traits like leaf water content, plant height, chlorophyll a, b and total chlorophyll content, nodes per plant, number of branches and mesocarp diameter were reduced at -1.2 MPa”

✓ located verbatim in the source · abstract, characters 1125–1408 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nodes per plant, number of branches and mesocarp diameter of pumpkin were reduced at -1.2 MPa.

Taxon
Pumpkine0
Treatment
-1.2 MPae4
Outcome
nodes per plant, number of branches and mesocarp diametere4
Direction
reducede4

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e4

“Most of traits under study depicated their significant reduction at -1.8 MPa water deficiency, while other traits like leaf water content, plant height, chlorophyll a, b and total chlorophyll content, nodes per plant, number of branches and mesocarp diameter were reduced at -1.2 MPa”

✓ located verbatim in the source · abstract, characters 1125–1408 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Seed number per fruit of pumpkin was significantly higher at -1.2 MPa than at -0.3 MPa.

Taxon
Pumpkine0
Treatment
-1.2 MPae5
Outcome
seed per fruite5
Direction
increasede5
Comparator
-0.3 MPae5

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e5

“On the other hand, seed per fruit was increased significantly at -1.2 MPa as compared to -0.3 MPa water deficiency”

✓ located verbatim in the source · abstract, characters 1410–1524 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Increased seed number per fruit at -1.2 MPa was due to reduced mesocarp diameter and weight.

Taxon
Pumpkine0
Outcome
seed number per fruite6
Qualifier
reduction in mesocarp diameter and its weighte6

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e6

“The main reason for increment of seed number per fruit was due to reduction in mesocarp diameter and its weight”

✓ located verbatim in the source · abstract, characters 1526–1637 · show in text ↑
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

Water deficiency probably shifted assimilates from the fruit to the seeds.

Taxon
Pumpkine0
Treatment
water deficiencye7
Outcome
partitioning pattern of assimilatese7
Qualifier
shifted them to seeds against mesocarp or other parts of fruite7

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e7

“It seems that water deficiency changed the partitioning pattern of assimilates from fruit and shifted them to seeds against mesocarp or other parts of fruit”

✓ located verbatim in the source · abstract, characters 1639–1795 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Seed number per fruit and number of fruit per land area had the most effect on pumpkin yield formation.

Taxon
Pumpkine0
Outcome
yield formatione1
Qualifier
seed number per fruit and number of fruit per land area had the most effecte1

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e1

“Among the yield components, seed number per fruit and number of fruit per land area had the most effect on yield formation”

✓ located verbatim in the source · abstract, characters 1797–1919 · show in text ↑
Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Seed weight of pumpkin showed no significant variation.

Taxon
Pumpkine0
Outcome
variation in seed weighte2

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e2

“The variation in seed weight was not significant”

✓ located verbatim in the source · abstract, characters 1921–1969 · show in text ↑
Intervention effectauthor interpretationoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Pumpkin may be considered tolerant to soil suction down to -1.2 MPa, without a significant reduction in seed yield.

Taxon
pumpkine1
Treatment
-1.2 MPae1
Outcome
seed yielde1
Direction
reductione1

Not reportedComparator

Verbatim

e0

“Pumpkin is one of the valuable medicinal plants which have high oil content in its seeds”

✓ located verbatim in the source · abstract, characters 0–88 · show in text ↑
e1

“pumpkin may considered as a tolerant plant to soil suction till -1.2 MPa, without a significant reduction in seed yield”

✓ located verbatim in the source · abstract, characters 1993–2112 · show in text ↑

salicylic acid · physiology: water · Cucurbita (pumpkins)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

salicylic acid · yield · Cucurbita (pumpkins)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

drought · yield · Cucurbita (pumpkins)Results differ

5 papers: 0 positive, 5 negative or no effect

4 papers in the same direction as this paper

  1. negative
  2. no effect
  3. negative

1 paper more in this group

See all 5 papers →

drought · physiology: water · Cucurbita (pumpkins)Positive and negative results

4 papers: 1 positive, 3 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. negative
See all 4 papers →

application · yield · Cucurbita (pumpkins)Positive and negative results

23 papers: 22 positive, 1 negative or no effect

21 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

19 papers more in this group

See all 23 papers →

application · physiology: water · Cucurbita (pumpkins)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.