Abstract
Drought is a major abiotic stress, severely affecting the physiological processes and growth of plants. The present investigation aimed to evaluate the impacts of drought stress with three periods for irrigation: every 3 days(control), every 6 days, and every 12 days and foliar spray with different concentrations of ascorbic acid (0, 75, 150, 225) mg.L-1 on the wheat plant. Pots experiment was conducted as a completely randomized design with three replications in the green house, Department of Biology, College of Education for Pure Science (Ibn Al- Haitham), University of Baghdad, during the growing season, 2018 – 2019. The results indicated that drought stress decreased plant growth and hastened the senescence of flag leaves, which is significantly associated with a decrease in the quality and quantity of grain yield. Foliar spray with ascorbic acid enhanced plant drought tolerance in terms of plant height, shoot dry weight, flag leaf traits (flag leaf area, flag leaf chlorophyll and the concentration of macronutrients such as nitrogen, phosphorous, potassium) and some yield components (spike length, grain weight. pot-1 and protein percentage of grains). The results indicated the efficiency of ascorbic acid foliar spray on vegetative growth, flag leaf traits and some yield components of wheat plants affected by drought stress and the superiority to 150 mg.L-1 ascorbic acid in which plants can resist the unfavorable drought stress periods(12 days).
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
Drought stress decreased wheat growth.
- Taxon
- Wheat Plant Triticum aestivum L.
Triticum aestivumt0 - Treatment
- drought stresse0
- Outcome
- plant growthe0
- Direction
- decreasede0
- Comparator
- every 3 days(control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicated that drought stress decreased plant growth”
t0“Wheat Plant Triticum aestivum L.”
e1“every 3 days(control), every 6 days, and every 12 days”
Claim · model-written summary
Drought stress hastened flag leaf senescence.
- Taxon
- Wheat Plant Triticum aestivum L.Triticum aestivumt0
- Treatment
- drought stresse0
- Outcome
- senescence of flag leavese0
- Direction
- hastenede0
- Comparator
- every 3 days(control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought stress decreased plant growth and hastened the senescence of flag leaves”
e1“every 3 days(control), every 6 days, and every 12 days”
t0“Wheat Plant Triticum aestivum L.”
Claim · model-written summary
Flag leaf senescence was significantly associated with lower grain yield quality and quantity.
- Taxon
- Wheat Plant Triticum aestivum L.Triticum aestivumt0
- Organ / stage
- flag leavese0
- Outcome
- quality and quantity of grain yielde0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hastened the senescence of flag leaves, which is significantly associated with a decrease in the quality and quantity of grain yield.”
t0“Wheat Plant Triticum aestivum L.”
Claim · model-written summary
Ascorbic acid spray improved wheat height and shoot dry weight under drought.
- Taxon
- Wheat Plant Triticum aestivum L.Triticum aestivumt0
- Treatment
- Foliar spray with ascorbic acide0
- Outcome
- plant height, shoot dry weighte0
- Direction
- enhancede0
- Comparator
- 0, 75, 150, 225) mg.L-1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar spray with ascorbic acid enhanced plant drought tolerance in terms of plant height, shoot dry weight, flag leaf traits (flag leaf area, flag leaf chlorophyll and the concentration of macronutrients such as nitrogen, phosphorous, potassium) and some yield components (spike length, grain weight. pot-1 and protein percentage of grains).”
e1“0, 75, 150, 225) mg.L-1”
t0“Wheat Plant Triticum aestivum L.”
Claim · model-written summary
Ascorbic acid spray improved flag leaf area, chlorophyll and macronutrient concentration under drought.
- Taxon
- Wheat Plant Triticum aestivum L.Triticum aestivumt0
- Treatment
- Foliar spray with ascorbic acide0
- Outcome
- flag leaf area, flag leaf chlorophyll and the concentration of macronutrientse0
- Direction
- enhancede0
- Comparator
- 0, 75, 150, 225) mg.L-1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar spray with ascorbic acid enhanced plant drought tolerance in terms of plant height, shoot dry weight, flag leaf traits (flag leaf area, flag leaf chlorophyll and the concentration of macronutrients such as nitrogen, phosphorous, potassium) and some yield components (spike length, grain weight. pot-1 and protein percentage of grains).”
e1“0, 75, 150, 225) mg.L-1”
t0“Wheat Plant Triticum aestivum L.”
Claim · model-written summary
Ascorbic acid spray improved spike length, grain weight and grain protein percentage under drought.
- Taxon
- Wheat Plant Triticum aestivum L.Triticum aestivumt0
- Treatment
- Foliar spray with ascorbic acide0
- Outcome
- spike length, grain weight. pot-1 and protein percentage of grainse0
- Direction
- enhancede0
- Comparator
- 0, 75, 150, 225) mg.L-1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar spray with ascorbic acid enhanced plant drought tolerance in terms of plant height, shoot dry weight, flag leaf traits (flag leaf area, flag leaf chlorophyll and the concentration of macronutrients such as nitrogen, phosphorous, potassium) and some yield components (spike length, grain weight. pot-1 and protein percentage of grains).”
e1“0, 75, 150, 225) mg.L-1”
t0“Wheat Plant Triticum aestivum L.”
Claim · model-written summary
The 150 mg.L-1 dose was superior for drought resistance at 12-day irrigation intervals.
- Taxon
- Wheat Plant Triticum aestivum L.Triticum aestivumt0
- Treatment
- 150 mg.L-1 ascorbic acide0
- Outcome
- superioritye0
- Direction
- superioritye0
- Qualifier
- 12 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the superiority to 150 mg.L-1 ascorbic acid in which plants can resist the unfavorable drought stress periods(12 days).”
t0“Wheat Plant Triticum aestivum L.”
The same questions in other papers
ascorbic acid · growth · Triticum aestivum (wheat)Results differ
20 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
18 papers more in this group
See all 22 papers →ascorbic acid · quality: protein · Triticum aestivum (wheat)Results agree
2 papers in the same direction as this paper
- positive
- positive
ascorbic acid · physiology: pigments · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
drought · quality: postharvest · Triticum aestivum (wheat)Positive and negative results
11 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- negative
9 papers more in this group
See all 13 papers →application · physiology: pigments · Triticum aestivum (wheat)Positive and negative results
97 papers in the same direction as this paper · 6 in the opposite direction · 2 reporting no difference from an alternative
- negative
- negative
- negative
102 papers more in this group
See all 106 papers →application · quality: protein · Triticum aestivum (wheat)Positive and negative results
109 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
121 papers more in this group
See all 125 papers →application · growth · Triticum aestivum (wheat)Positive and negative results
272 papers in the same direction as this paper · 32 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
303 papers more in this group
See all 307 papers →drought · growth · Triticum aestivum (wheat)Positive and negative results
344 papers in the same direction as this paper · 86 in the opposite direction
- positive
- positive
- positive
427 papers more in this group
See all 431 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.