Paper · 2012 · Zhongguo nongye Kexue

Method of Making Pear Fruit-Derived Nutrient Solution and Its Effect on Photosynthetic Characteristics and Fruit Quality

Rui Luo; Jie Zhang; Mingjuan Liu; et al.

12
claims
16
verbatim quotes
2
citations
4
research areas
—
Not open access

Abstract

【Objective】The purpose of this study is to explore the optimal method of making pear fruit-derived nutrient solution and its effect on photosynthetic characteristics and fruit quality.【Method】In the present study,the dropping and thinning fruits from pear tree,Pyrus pyrifolia(Burm.f.).cv.Nakai,were used as materials to make the nutrient solutions and different formula including content of sugar and water,disintegrating status of fruit,anaerobic or aerobic condition and fermentation days were designed to study their effects on the nutrition components in the solutions.Furthermore,in order to analyze the mineral element content,growth status and the photosynthetic characteristics of pear trees,a pear fruit-derived nutrient solution was made based on the optimal formula and sprayed with different concentrations of the pear fruit-derived nutrient solution(Tr1 for 500 times,Tr2 for 200 times,and Tr3 for 0 times as CK) on two-year-old pear trees and fifteen-year-old mature trees.【Result】The results indicated that young pear fruit,ferments,brown sugar and water according to the mass ratio of 50:1:10:35 in the fermentation conditions of fruit homogenate,aerobic conditions at room temperature of 25-28℃ for 30 to 45 days were the most suitable formula to make fruit-derived nutrient solution,and spray with pear fruit-derived nutrient solution significantly increased leaf thickness,the specific leaf weight,the content of chlorophyll,and the content of mineral element,such as N,P,K,Ca,Fe,Mn and so on.In addition,spray with pear fruit-derived nutrient solution not only enhanced the water use efficiency through increased the net photosynthetic rate and decreased the transpiration rate,but also significantly increased the average single fruit weight,fruit-based index,fruit hardness,soluble solids,titratable acid,sugar acid ratio and Vc content.【Conclusion】In conclusion,spraying on the surface of leaves significantly promoted the growth of pear trees,increased the content of mineral element in leaves,enhanced the photosynthetic performance of leaves,further then improved the quality of fruits,especially the 200 times nutrient solution.And the product made by the optimal formula had higher content of mineral elements,degree of decomposition and content of sugar than others.

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Claims 12

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The optimal nutrient solution formula used a 50:1:10:35 mass ratio and aerobic homogenate fermentation at 25-28℃ for 30 to 45 days.

Outcome
most suitable formulae0
Value
50:1:10:35e0
Qualifier
fruit homogenate,aerobic conditions at room temperature of 25-28℃ for 30 to 45 dayse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“young pear fruit,ferments,brown sugar and water according to the mass ratio of 50:1:10:35 in the fermentation conditions of fruit homogenate,aerobic conditions at room temperature of 25-28℃ for 30 to 45 days were the most suitable formula to make fruit-derived nutrient solution”

✓ located verbatim in the source · abstract, characters 1023–1301 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution spray significantly increased leaf thickness, specific leaf weight and chlorophyll content.

Treatment
spray with pear fruit-derived nutrient solutione0
Outcome
leaf thickness,the specific leaf weight,the content of chlorophylle0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spray with pear fruit-derived nutrient solution significantly increased leaf thickness,the specific leaf weight,the content of chlorophyll”

✓ located verbatim in the source · abstract, characters 1306–1444 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution spray significantly increased leaf N, P and K content.

Treatment
spray with pear fruit-derived nutrient solutione0
Outcome
N,P,Ke0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spray with pear fruit-derived nutrient solution significantly increased leaf thickness,the specific leaf weight,the content of chlorophyll,and the content of mineral element,such as N,P,K,Ca,Fe,Mn and so on.”

✓ located verbatim in the source · abstract, characters 1306–1513 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nutrient solution spray significantly increased leaf Ca, Fe and Mn content.

Treatment
spray with pear fruit-derived nutrient solutione0
Outcome
Ca,Fe,Mne0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spray with pear fruit-derived nutrient solution significantly increased leaf thickness,the specific leaf weight,the content of chlorophyll,and the content of mineral element,such as N,P,K,Ca,Fe,Mn and so on.”

✓ located verbatim in the source · abstract, characters 1306–1513 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient solution spray increased net photosynthetic rate.

Treatment
spray with pear fruit-derived nutrient solutione0
Outcome
net photosynthetic ratee0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spray with pear fruit-derived nutrient solution not only enhanced the water use efficiency through increased the net photosynthetic rate and decreased the transpiration rate”

✓ located verbatim in the source · abstract, characters 1525–1698 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient solution spray decreased transpiration rate.

Treatment
spray with pear fruit-derived nutrient solutione0
Outcome
transpiration ratee0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spray with pear fruit-derived nutrient solution not only enhanced the water use efficiency through increased the net photosynthetic rate and decreased the transpiration rate”

✓ located verbatim in the source · abstract, characters 1525–1698 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Nutrient solution spray enhanced water use efficiency through photosynthetic and transpiration changes.

Treatment
spray with pear fruit-derived nutrient solutione0
Outcome
water use efficiencye0
Direction
enhancede0
Qualifier
increased the net photosynthetic rate and decreased the transpiration ratee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spray with pear fruit-derived nutrient solution not only enhanced the water use efficiency through increased the net photosynthetic rate and decreased the transpiration rate”

✓ located verbatim in the source · abstract, characters 1525–1698 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying significantly increased average fruit weight, fruit-based index and hardness.

Treatment
spray with pear fruit-derived nutrient solutione1
Outcome
average single fruit weight,fruit-based index,fruit hardnesse0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“significantly increased the average single fruit weight,fruit-based index,fruit hardness,soluble solids,titratable acid,sugar acid ratio and Vc content”

✓ located verbatim in the source · abstract, characters 1708–1859 · show in text ↑
e1

“spray with pear fruit-derived nutrient solution not only enhanced”

✓ located verbatim in the source · abstract, characters 1525–1590 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying significantly increased soluble solids, titratable acid and sugar acid ratio.

Treatment
spray with pear fruit-derived nutrient solutione1
Outcome
soluble solids,titratable acid,sugar acid ratioe0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“significantly increased the average single fruit weight,fruit-based index,fruit hardness,soluble solids,titratable acid,sugar acid ratio and Vc content”

✓ located verbatim in the source · abstract, characters 1708–1859 · show in text ↑
e1

“spray with pear fruit-derived nutrient solution not only enhanced”

✓ located verbatim in the source · abstract, characters 1525–1590 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Spraying significantly increased Vc content.

Treatment
spray with pear fruit-derived nutrient solutione1
Outcome
Vc contente0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“significantly increased the average single fruit weight,fruit-based index,fruit hardness,soluble solids,titratable acid,sugar acid ratio and Vc content”

✓ located verbatim in the source · abstract, characters 1708–1859 · show in text ↑
e1

“spray with pear fruit-derived nutrient solution not only enhanced”

✓ located verbatim in the source · abstract, characters 1525–1590 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar spraying significantly promoted pear growth, especially at 200 times dilution.

Treatment
spraying on the surface of leavese0
Outcome
growthe0
Direction
promotede0
Qualifier
especially the 200 times nutrient solutione1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pyrus communis
Pyrus communis · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spraying on the surface of leaves significantly promoted the growth of pear trees”

✓ located verbatim in the source · abstract, characters 1886–1967 · show in text ↑
e1

“especially the 200 times nutrient solution”

✓ located verbatim in the source · abstract, characters 2113–2155 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The optimal formula product had higher mineral content, decomposition and sugar content than other products.

Outcome
content of mineral elements,degree of decomposition and content of sugare0
Direction
highere0
Comparator
otherse0

Not reportedTaxon

Verbatim

e0

“the product made by the optimal formula had higher content of mineral elements,degree of decomposition and content of sugar than others.”

✓ located verbatim in the source · abstract, characters 2160–2296 · show in text ↑

application · physiology: gas exchange · Pyrus communis (pear)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

fertilization · quality: postharvest · Pyrus communis (pear)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

1 paper more in this group

See all 5 papers →

fertilization · physiology: pigments · Pyrus communis (pear)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

application · molecular: metabolites · Pyrus communis (pear)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

8 papers more in this group

See all 12 papers →

application · quality: postharvest · Pyrus communis (pear)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

8 papers more in this group

See all 12 papers →

application · quality: sugar starch · Pyrus communis (pear)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

8 papers more in this group

See all 12 papers →

fertilization · molecular: metabolites · Pyrus communis (pear)Positive and negative results

18 papers: 13 positive, 5 negative or no effect

12 papers in the same direction as this paper · 5 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

14 papers more in this group

See all 18 papers →

application · growth · Pyrus communis (pear)Positive and negative results

20 papers: 16 positive, 4 negative or no effect

15 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. no effect
  3. negative

16 papers more in this group

See all 20 papers →

8 of 14 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.