Abstract
Maize is one of the major crops in China, but maize stalk rot occurs nationwide and has become one of the major challenges in maize production in China. In order to find an environment-friendly and feasible technology to control this disease, a Trichoderma-based biocontrol agent was selected. Forty-eight strains with various inhibition activities to Fusarium graminearum, and Fusarium verticillioides were tested. A group of Trichoderma strains (DLY31, SG3403, DLY1303 and GDFS1009) were found to provide an inhibition rate to pathogen growth in vitro of over 70%. These strains also prevented pathogen infection over 65% and promoted the maize seedling growth for the main root in vivo by over 50%. Due to its advantage in antifungal activity against pathogens and promotion activity to maize, Trichoderma asperellum GDSF1009 was selected as the most promising strain of the biocontrol agent in the Trichoderma spectrum. Pot experiments showed that the Trichoderma agent at 2–3 g/pot could achieve the best control of seedling stalk rot and promotion of maize seedling growth. In the field experiments, 8–10 g/hole was able to achieve over 65% control to stalk rot, and yield increased by 2–11%. In the case of natural morbidity, the control efficiency ranged from 27.23 to 48.84%, and the rate of yield increase reached 11.70%, with a dosage of Trichoderma granules at 75 kg ha−1. Based on these results, we concluded that the Trichoderma agent is a promising biocontrol approach to stalk rot in maize.
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Claims 9
Claim · model-written summary
Four Trichoderma strains inhibited pathogen growth in vitro by over 70%.
- Interactor
- Trichoderma strainse0biocontrol_agent
- Outcome
- inhibition rate to pathogen growthe0
- Value
- over 70%e0
- Setting
- in vitroe0
Zea maysNot reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“A group of Trichoderma strains (DLY31, SG3403, DLY1303 and GDFS1009) were found to provide an inhibition rate to pathogen growth in vitro of over 70%.”
Claim · model-written summary
The strains prevented pathogen infection by over 65%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“These strains also prevented pathogen infection over 65%”
Claim · model-written summary
The strains promoted maize seedling main root growth by over 50%.
- Organ / stage
- main roote0
- Outcome
- maize seedling growth for the main roote0
- Direction
- promotede0
- Value
- over 50%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“promoted the maize seedling growth for the main root in vivo by over 50%”
Claim · model-written summary
Trichoderma asperellum GDSF1009 was selected as the most promising strain.
- Interactor
- Trichoderma asperellum GDSF1009
Trichoderma asperellume0biocontrol_agent - Outcome
- most promising straine0
- Comparator
- Trichoderma spectrume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“Trichoderma asperellum GDSF1009 was selected as the most promising strain of the biocontrol agent in the Trichoderma spectrum.”
Claim · model-written summary
At 2–3 g/pot, the agent gave the best seedling stalk rot control and seedling growth promotion in pots.
- Treatment
- Trichoderma agent at 2–3 g/pote0
- Interactor
- Trichoderma
Trichodermae0biocontrol_agent - Outcome
- control of seedling stalk rot and promotion of maize seedling growthe0
- Direction
- beste0
- Setting
- Pot experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“Pot experiments showed that the Trichoderma agent at 2–3 g/pot could achieve the best control of seedling stalk rot and promotion of maize seedling growth.”
Claim · model-written summary
At 8–10 g/hole in fields, the agent gave over 65% stalk rot control.
- Treatment
- 8–10 g/holee0
- Outcome
- control to stalk rote0
- Direction
- controle0
- Value
- over 65%e0
- Setting
- field experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“In the field experiments, 8–10 g/hole was able to achieve over 65% control to stalk rot”
Claim · model-written summary
Field application at 8–10 g/hole increased yield by 2–11%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“In the field experiments, 8–10 g/hole was able to achieve over 65% control to stalk rot, and yield increased by 2–11%.”
Claim · model-written summary
Under natural morbidity, granules at 75 kg ha−1 controlled stalk rot by 27.23 to 48.84%.
- Treatment
- Trichoderma granules at 75 kg ha−1e0
- Interactor
- TrichodermaTrichodermae0biocontrol_agent
- Outcome
- control efficiencye0
- Direction
- controle0
- Value
- 27.23 to 48.84%e0
- Qualifier
- natural morbiditye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“In the case of natural morbidity, the control efficiency ranged from 27.23 to 48.84%, and the rate of yield increase reached 11.70%, with a dosage of Trichoderma granules at 75 kg ha−1.”
Claim · model-written summary
Under natural morbidity, granules at 75 kg ha−1 increased yield by 11.70%.
- Treatment
- Trichoderma granules at 75 kg ha−1e0
- Outcome
- yield increasee0
- Direction
- increasee0
- Value
- 11.70%e0
- Qualifier
- natural morbiditye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize”
e0“In the case of natural morbidity, the control efficiency ranged from 27.23 to 48.84%, and the rate of yield increase reached 11.70%, with a dosage of Trichoderma granules at 75 kg ha−1.”
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See all 11 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.