Abstract
In order to evaluate the effects of bio-priming by Trichoderma harzianum on copper tolerance of barley seedlings, a factorial experiment was conducted based on randomized complete block design, with three replications in Research Farm of faculty of Agriculture and Natural Resources in University of Mohaghegh Ardabili in year 2016. Experimental factors included pre-treatment (non-priming, hydro-priming, bio-priming, exogenous application of Trichoderma) and copper stress (0.29, 2.9, 29, 290 µM). In the main experiment after seed pre-treatments, barley seeds were sown in plastic pots. After seed planting, the different copper concentrations (as CuCl2) were applied along with hoagland-arnon nutrient solution. The results indicated that the length and dry weight of plants and the length of leaves were significantly decreased when the concentration of copper was increased. So that, plant dry weight was significantly reduced at 29 and 290 μM concentrations of copper and plant and leaf length were further declined at 290 µM. On the other hand, external use of Trichoderma alleviated the deterrent impacts of copper toxicity on plant and leaf length. Bio-priming and hydro-priming of seeds significantly increased emergence percentage and rate. The seedlings obtained from barley seeds, which were primed with Trichoderma, were heavier than seedlings produced from untreated (control) seeds.
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Claims 7
Claim · model-written summary
Higher copper concentration significantly decreased plant length, leaf length, and plant dry weight.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- coppere0
- Outcome
- length and dry weight of plants and the length of leavese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The results indicated that the length and dry weight of plants and the length of leaves were significantly decreased when the concentration of copper was increased.”
t0“barley”
Claim · model-written summary
At 29 and 290 μM copper, plant dry weight was significantly reduced.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- 29 and 290 μM concentrations of coppere0
- Outcome
- plant dry weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant dry weight was significantly reduced at 29 and 290 μM concentrations of copper”
t0“barley”
Claim · model-written summary
At 290 µM copper, plant and leaf length declined further.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- 290 µMe0
- Outcome
- plant and leaf lengthe0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant and leaf length were further declined at 290 µM”
t0“barley”
Claim · model-written summary
External Trichoderma use alleviated copper toxicity effects on plant and leaf length.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- external use of Trichodermae0
- Interactor
- Trichoderma
Trichodermae0symbiont - Outcome
- plant and leaf lengthe0
- Direction
- alleviatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“external use of Trichoderma alleviated the deterrent impacts of copper toxicity on plant and leaf length”
t0“barley”
Claim · model-written summary
Seed bio-priming significantly increased emergence percentage and rate.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Bio-priminge0
- Interactor
- Trichoderma harzianumTrichoderma harzianumt1symbiont
- Outcome
- emergence percentage and ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bio-priming and hydro-priming of seeds significantly increased emergence percentage and rate.”
t0“barley”
t1“Trichoderma harzianum”
Claim · model-written summary
Seed hydro-priming significantly increased emergence percentage and rate.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- hydro-priminge0
- Outcome
- emergence percentage and ratee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bio-priming and hydro-priming of seeds significantly increased emergence percentage and rate.”
t0“barley”
Claim · model-written summary
Trichoderma-primed barley seeds produced heavier seedlings than untreated seeds.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- primed with Trichodermae0
- Interactor
- TrichodermaTrichodermae0symbiont
- Outcome
- seedlingse0
- Direction
- heaviere0
- Comparator
- untreated (control) seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The seedlings obtained from barley seeds, which were primed with Trichoderma, were heavier than seedlings produced from untreated (control) seeds.”
The same questions in other papers
copper atom · growth · Hordeum vulgare (barley)Positive and negative results
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- positive
- positive
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See all 26 papers →Trichoderma · growth · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
seed treatment · growth · Hordeum vulgare (barley)Positive and negative results
46 papers in the same direction as this paper · 11 in the opposite direction
- no effect
- negative
- no effect
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See all 58 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.