Paper · 2013 · International Journal of Agronomy and Plant Production

Wheat performance as affected by foliar application of molybdenum (Mo) under drought stress condition.

A. H. Ghafarian; Reza Zarghami; Behnam Zand; et al.

18
claims
36
verbatim quotes
12
citations
2
research areas
—
Not open access

Abstract

An experiment was conducted in order to evaluate the effects of Mo spraying on quantitative and qualitative characteristics of wheat grain yield under water stress condition, in Varamin agricultural resspikech center in 2011. A split plot layout within randomized complete block design with three replications was used. Main plots were three irrigation treatments (normal irrigation, non-irrigation at start of grain filling stage and non-irrigation at start of flowering stage) and sub plots were Mo spraying with three levels including spraying with pure water, Mo spraying with 0.5% concentration and Mo spraying with 1% concentration. The result showed that, grain yield and many of yield components affected by drought stress, significantly, on reproductive growth stage. Grain yield had significantly decreased by light and severe stress by 14.6% and 26.7% respectively. The most effect of stress at filling stage treatment were on thousand kernel weight leaf area duration and day to maturity, whereas, number grain per spike and number of fertile spike affected with stress at flowering stage treatment. Severe stress treatment had a significant effect on maximum amount of LAI and CGR. Leaf area duration decreased for both two stress treatments and leaf defoliation started so spikelier than normal treatment. Mo spraying has significant effects on grain yield and many yield components and also caused a significant decrease of water stress damages. 1% concentration of Mo spraying caused significant increase in total kernel weight, pedancle length, number of fertile spike and number of kernel per spike by 6.7%, 13.9%, 5.7%, 6.5% and 17.4% respectively. Day to maturity increased for 4 days in this treatment. Mo spraying with 1% concentration increased the grain yield from 5699 kg ha -1 to 6065 kg ha -1 significantly. There was no significant difference between to spraying concentrations (0.5% and 1%) for number of kernel per spike, total kernel weight, peduncle length, grain yield, biological yield, harvest index, protein yield and protein percentage. Also, the effect of Mo spraying was not significant for biological yield and harvest index. The manner of LAI and CGR changes during wheat growth period had significantly affected by Mo spraying. Protein percentage of wheat grain increased in both two irrigation and Mo spraying treatments.

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Claims 18

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Light stress reduced grain yield 14.6%.

Treatment
lighte0
Outcome
Grain yielde0
Direction
decreasede0
Value
14.6%e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yield had significantly decreased by light and severe stress by 14.6% and 26.7% respectively.”

✓ located verbatim in the source · abstract, characters 777–876 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Severe stress reduced grain yield 26.7%.

Treatment
severe stresse0
Outcome
Grain yielde0
Direction
decreasede0
Value
26.7%e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yield had significantly decreased by light and severe stress by 14.6% and 26.7% respectively.”

✓ located verbatim in the source · abstract, characters 777–876 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Filling-stage stress affected kernel weight, leaf area duration and maturity most.

Treatment
stress at filling stagee0
Outcome
thousand kernel weight leaf area duration and day to maturitye0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The most effect of stress at filling stage treatment were on thousand kernel weight leaf area duration and day to maturity”

✓ located verbatim in the source · abstract, characters 877–999 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Flowering-stage stress affected grains per spike and fertile spike number.

Treatment
stress at flowering stagee0
Outcome
number grain per spike and number of fertile spikee0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“number grain per spike and number of fertile spike affected with stress at flowering stage treatment”

✓ located verbatim in the source · abstract, characters 1010–1110 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Severe stress significantly affected maximal LAI and CGR.

Treatment
Severe stress treatmente0
Outcome
maximum amount of LAI and CGRe0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Severe stress treatment had a significant effect on maximum amount of LAI and CGR.”

✓ located verbatim in the source · abstract, characters 1112–1194 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Both stresses reduced leaf area duration.

Treatment
both two stress treatmentse0
Outcome
Leaf area duratione0
Direction
decreasede0
Comparator
normal treatmente0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Leaf area duration decreased for both two stress treatments and leaf defoliation started so spikelier than normal treatment.”

✓ located verbatim in the source · abstract, characters 1195–1319 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Defoliation began earlier under stress.

Outcome
leaf defoliatione0
Comparator
normal treatmente0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“leaf defoliation started so spikelier than normal treatment”

✓ located verbatim in the source · abstract, characters 1259–1318 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Molybdenum spraying reduced water-stress damage.

Treatment
Mo sprayinge0
Outcome
water stress damagese0
Direction
decreasee0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Mo spraying has significant effects on grain yield and many yield components and also caused a significant decrease of water stress damages.”

✓ located verbatim in the source · abstract, characters 1320–1460 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent molybdenum increased total kernel weight.

Treatment
1% concentration of Mo sprayinge0
Outcome
total kernel weighte0
Direction
increasee0
Value
6.7%e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“1% concentration of Mo spraying caused significant increase in total kernel weight, pedancle length, number of fertile spike and number of kernel per spike by 6.7%, 13.9%, 5.7%, 6.5% and 17.4% respectively.”

✓ located verbatim in the source · abstract, characters 1461–1667 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent molybdenum increased peduncle length.

Treatment
1% concentration of Mo sprayinge0
Outcome
pedancle lengthe0
Direction
increasee0
Value
13.9%e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“1% concentration of Mo spraying caused significant increase in total kernel weight, pedancle length, number of fertile spike and number of kernel per spike by 6.7%, 13.9%, 5.7%, 6.5% and 17.4% respectively.”

✓ located verbatim in the source · abstract, characters 1461–1667 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent molybdenum increased fertile spike number.

Treatment
1% concentration of Mo sprayinge0
Outcome
number of fertile spikee0
Direction
increasee0
Value
5.7%e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“1% concentration of Mo spraying caused significant increase in total kernel weight, pedancle length, number of fertile spike and number of kernel per spike by 6.7%, 13.9%, 5.7%, 6.5% and 17.4% respectively.”

✓ located verbatim in the source · abstract, characters 1461–1667 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent molybdenum increased kernels per spike.

Treatment
1% concentration of Mo sprayinge0
Outcome
number of kernel per spikee0
Direction
increasee0
Value
6.5%e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“1% concentration of Mo spraying caused significant increase in total kernel weight, pedancle length, number of fertile spike and number of kernel per spike by 6.7%, 13.9%, 5.7%, 6.5% and 17.4% respectively.”

✓ located verbatim in the source · abstract, characters 1461–1667 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Maturity was delayed four days under the treatment.

Treatment
this treatmente0
Outcome
Day to maturitye0
Direction
increasede0
Value
4 dayse0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Day to maturity increased for 4 days in this treatment.”

✓ located verbatim in the source · abstract, characters 1668–1723 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

One percent molybdenum raised grain yield from 5699 to 6065 kg per hectare.

Treatment
Mo spraying with 1% concentratione0
Outcome
grain yielde0
Direction
increasede0
Value
6065 kg ha -1e0
Qualifier
5699 kg ha -1e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Mo spraying with 1% concentration increased the grain yield from 5699 kg ha -1 to 6065 kg ha -1 significantly.”

✓ located verbatim in the source · abstract, characters 1724–1834 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The two molybdenum concentrations did not differ significantly on listed yield and protein traits.

Treatment
0.5%e0
Outcome
number of kernel per spike, total kernel weight, peduncle length, grain yield, biological yield, harvest index, protein yield and protein percentagee0
Direction
no significant differencee0
Comparator
1%e0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“There was no significant difference between to spraying concentrations (0.5% and 1%) for number of kernel per spike, total kernel weight, peduncle length, grain yield, biological yield, harvest index, protein yield and protein percentage.”

✓ located verbatim in the source · abstract, characters 1835–2073 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Molybdenum did not significantly affect biological yield or harvest index.

Treatment
Mo sprayinge0
Outcome
biological yield and harvest indexe0

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the effect of Mo spraying was not significant for biological yield and harvest index.”

✓ located verbatim in the source · abstract, characters 2080–2165 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Molybdenum significantly altered LAI and CGR trajectories.

Treatment
Mo sprayinge0
Outcome
LAI and CGR changese0

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The manner of LAI and CGR changes during wheat growth period had significantly affected by Mo spraying.”

✓ located verbatim in the source · abstract, characters 2166–2269 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation and molybdenum treatments increased grain protein percentage.

Treatment
irrigation and Mo spraying treatmentse0
Outcome
Protein percentage of wheat graine0
Direction
increasede0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Protein percentage of wheat grain increased in both two irrigation and Mo spraying treatments.”

✓ located verbatim in the source · abstract, characters 2270–2364 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑

molybdenum atom · yield · Triticum aestivum (wheat)Results differ

26 papers: 19 positive, 7 negative or no effect

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

  1. positive
    Molybdenum deficiency and excess significantly decreased wheat biomass and grain yield.

    MOLYBDENUM STRESS AFFECTS VIABILITY AND VIGOR OF WHEAT SEEDS · 2001

    Same directionCited by this paperAbout lacking this nutrient, so it counts the other way round

  2. negative
  3. no effect

22 papers more in this group

See all 26 papers →

light · yield · Triticum aestivum (wheat)Positive and negative results

68 papers: 33 positive, 35 negative or no effect

34 papers in the same direction as this paper · 33 in the opposite direction

  1. positive
  2. positive
  3. positive

64 papers more in this group

See all 68 papers →

application · yield · Triticum aestivum (wheat)Positive and negative results

877 papers: 795 positive, 82 negative or no effect

794 papers in the same direction as this paper · 75 in the opposite direction · 7 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

873 papers more in this group

See all 877 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.