Abstract
[Objective] The aim was to explore effects of nitrogen levels on P. infestans resistance and tuber yield of potato plant. [Method]Effects of nitrogen levels on P. infestans resistance,defensive substance and tuber yield of potato plant through inoculating P. infestans into potato leaves treated by three levels( 90,145 and 180 kg/hm2) of nitrogen. [Result]The moderate level of nitrogen could confer plant the highest pathogen resistance coupled with higher activity of defense enzymes( PPO,PAL,Glu and Chi) and accumulation of secondary metabolites under pathogen or pathogen-free conditions than the other two levels of nitrogen treated plants. The highest tuber yield and the maximum proportion of big size tuber were observed in the moderate nitrogen treated plants. [Conclusion]The research results provide theoretical basis for understanding effects of nitrogen on resistant response and yield of plant and the relationship between them.
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Claims 5
Claim · model-written summary
Moderate nitrogen gave the highest pathogen resistance among three nitrogen levels.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- moderate level of nitrogene0
- Interactor
- Phytophthora infestans
Phytophthora infestanst0pathogene0 - Outcome
- pathogen resistancee0
- Direction
- higheste0
- Comparator
- other two levels of nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The moderate level of nitrogen could confer plant the highest pathogen resistance coupled with higher activity of defense enzymes( PPO,PAL,Glu and Chi) and accumulation of secondary metabolites under pathogen or pathogen-free conditions than the other two levels of nitrogen treated plants.”
t0“Phytophthora infestans Resistance and Tuber Yield of Potato Plant”
Claim · model-written summary
Moderate nitrogen raised defense enzyme activity relative to the other levels.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- activity of defense enzymes( PPO,PAL,Glu and Chi)e0
- Direction
- highere0
- Qualifier
- under pathogen or pathogen-free conditionse0
- Comparator
- other two levels of nitrogene0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher activity of defense enzymes( PPO,PAL,Glu and Chi) and accumulation of secondary metabolites under pathogen or pathogen-free conditions than the other two levels of nitrogen treated plants.”
t0“Phytophthora infestans Resistance and Tuber Yield of Potato Plant”
Claim · model-written summary
Moderate nitrogen increased secondary metabolite accumulation relative to other nitrogen levels.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- accumulation of secondary metabolitese0
- Qualifier
- under pathogen or pathogen-free conditionse0
- Comparator
- other two levels of nitrogene0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulation of secondary metabolites under pathogen or pathogen-free conditions than the other two levels of nitrogen treated plants.”
t0“Phytophthora infestans Resistance and Tuber Yield of Potato Plant”
Claim · model-written summary
Moderate nitrogen gave the highest tuber yield.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- moderate nitrogene0
- Outcome
- tuber yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest tuber yield and the maximum proportion of big size tuber were observed in the moderate nitrogen treated plants.”
t0“Potato Plant”
Claim · model-written summary
Moderate nitrogen gave the maximum proportion of big tubers.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- moderate nitrogene0
- Outcome
- proportion of big size tubere0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest tuber yield and the maximum proportion of big size tuber were observed in the moderate nitrogen treated plants.”
t0“Potato Plant”
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- no effect
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See all 51 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.