Paper · 2007 · Journal of Yangtze University Agricultural Science Volume

Effect of Leave-zinc Spraying on Physiological Indexes in ‘Xiangnan’ Pear

Rui Du

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Abstract

The effect of spraying zinc fertilizer on leaves of ‘Xiangnan’ pear for the content of chlorophyll、soluble sugar and protein was studied.The results showed that spraying 0.5% Zinc fertilizer on leaves of pear 5 times was able to apparently increase the content of chlorophyll,soluble sugar and protein.Each tested indexes went up markedly.

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Claims 1

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spraying 0.5% zinc fertilizer on pear leaves five times increased chlorophyll, soluble sugar and protein content.

Treatment
spraying 0.5% Zinc fertilizer on leaves of pear 5 timese1
Outcome
content of chlorophyll,soluble sugar and proteine1
Direction
increasee1

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

e1

“spraying 0.5% Zinc fertilizer on leaves of pear 5 times was able to apparently increase the content of chlorophyll,soluble sugar and protein”

✓ located verbatim in the source · abstract, characters 161–301 · show in text ↑

zinc atom · physiology: pigments · Pyrus communis (pear)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
    Zinc spraying at 2 ml/L gave significantly higher leaf chlorophyll content (30.27 SPAD) than the comparison treatment.

    Effect of spraying with zinc nanoparticles, Humic acid, and adding the mineral fertilizer on the growth of pear seedlings (Hollywood cultivar) · 2020 · compared with by comparison treatment

    Same direction

See all 2 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
    BOF did not significantly influence leaf chlorophyll content.

    Effects of different organic fertilizers on tree growth, yield, fruit quality, and soil microorganisms in a pear orchard · 2012 · compared with unfertilized control

    Opposite direction

  2. positive
    NPK treatments significantly enhanced leaf total chlorophyll (SPAD) in 2009.

    Using of Natural Raw Material Mixture and Magnetite Raw (Magnetic Iron) as Substitute for Chemical Fertilizers in Feeding "Le Conte" Pear Trees Planted in Calcareous Soil · 2010

    Same direction

  3. positive
    Integrated plant nutrition increased NDVI and SPAD readings relative to chemical fertilization alone.

    INTEGRATED PLANT NUTRITION ON THE RECOVERY OF A PEAR (PYRUS COMMUNIS 'PACKAM'S TRIUMPH') ORCHARD · 2015 · compared with only the chemical fertilization at the same rates

    Same direction

5 papers more in this group

See all 9 papers →

application · physiology: pigments · Pyrus communis (pear)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
    Foliar application improved pear leaf growth and chlorophyll relative to soil application.

    Response of Pear (Le Conte cv.) Trees Grown in Calcareous Soil to Trunk Injection and Foliar Application of some Micronutrients · 2018 · compared with soil application

    Same direction

  2. positive
    The 1.5% salicylic acid treatment increased pear fruit chlorophyll a and b in 2015 versus other concentrations.

    EFFECTS OF FOLIAR SPRAYING WITH SALICYLIC ACID ON SOME QUANTITY AND QUALITY CHARACTERISTICS OF PEAR FRUITS · 2017 · compared with other concentrations

    Same direction

  3. positive
    Foliar application of the solutions and Nanguochun promoted new shoot growth, leaf area and chlorophyll contents of pear trees.

    Effect of aromatic plant-derived nutrient solution on the growth,fruit quality and disease prevention of pear trees · 2011

    Same direction

4 papers more in this group

See all 8 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.