Abstract
[Objective] The effect of the different fertilization rate on the photosynthesis of seedless grape——Crimson under the condition of dripping irrigation in arid desert area of Xinjiang was investigated. [Method] Under the condition of dripping irrigation,5-year old variety grape——Crimson in the desert land being used as experimental material and treated with 3414 formula fertilization,the effect of the NPK fertilization on the photosynthetic characteristics and the variation principle of the photosynthetic characteristics from the 1st to 9th leaf above the fruiting branch were studied. [Results] The NPK fertilization could play a role in the adjustment of the net photosynthetic rate,the transpiration rate,the stomatal conductance and the intercellular CO2 concentration of grape leaf. From low to middle nitrogen fertilization level,the net photosynthetic rate and the transpiration rate of leaf was increased with its increment; however,from middle to high nitrogen fertilization level,they were decreased with its increment. The phosphorus fertilization did not obviously affect the net photosynthetic rate of the grape and with the increment of potassium fertilization,the level of net photosynthetic rate and transpiration rate showed a downward trend. In addition,net the photosynthetic rate at the 1st to 9th leaf above the fruiting branch was firstly increased and then decreased,and the maximum of net photosynthetic rate appeared in the 4th leaf above the fruiting branch. [Conclusion] The reference for the rational NPK fertilization for the high-yielding,good-quality and high efficiency seedless grape variety——Crimson production was provided.
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Claims 9
Claim · model-written summary
NPK fertilization adjusted net photosynthetic rate.
Not reportedComparatorDirection
Verbatim
e0“The NPK fertilization could play a role in the adjustment of the net photosynthetic rate,the transpiration rate,the stomatal conductance and the intercellular CO2 concentration of grape leaf”
Claim · model-written summary
NPK fertilization adjusted transpiration rate.
Not reportedComparatorDirection
Verbatim
e0“The NPK fertilization could play a role in the adjustment of the net photosynthetic rate,the transpiration rate,the stomatal conductance and the intercellular CO2 concentration of grape leaf”
Claim · model-written summary
NPK fertilization adjusted stomatal conductance.
Not reportedComparatorDirection
Verbatim
e0“The NPK fertilization could play a role in the adjustment of the net photosynthetic rate,the transpiration rate,the stomatal conductance and the intercellular CO2 concentration of grape leaf”
Claim · model-written summary
NPK fertilization adjusted intercellular CO2 concentration.
Not reportedComparatorDirection
Verbatim
e0“The NPK fertilization could play a role in the adjustment of the net photosynthetic rate,the transpiration rate,the stomatal conductance and the intercellular CO2 concentration of grape leaf”
Claim · model-written summary
From low to middle nitrogen fertilization, net photosynthetic rate increased.
Verbatim
e0“From low to middle nitrogen fertilization level,the net photosynthetic rate and the transpiration rate of leaf was increased with its increment”
t0“Grape”
Claim · model-written summary
From low to middle nitrogen fertilization, transpiration rate increased.
Verbatim
e0“From low to middle nitrogen fertilization level,the net photosynthetic rate and the transpiration rate of leaf was increased with its increment”
t0“Grape”
Claim · model-written summary
Phosphorus fertilization did not obviously affect grape net photosynthetic rate.
- Taxon
- grapee0
- Treatment
- phosphorus fertilizatione0
- Outcome
- net photosynthetic ratee0
- Direction
- did not obviously affecte0
Not reportedComparator
Verbatim
e0“The phosphorus fertilization did not obviously affect the net photosynthetic rate of the grape”
Claim · model-written summary
Increasing potassium fertilization reduced net photosynthetic rate and transpiration rate.
- Taxon
- Grapet0
- Treatment
- potassium fertilizatione0
- Outcome
- net photosynthetic rate and transpiration ratee0
- Direction
- downward trende0
Not reportedComparator
Verbatim
e0“with the increment of potassium fertilization,the level of net photosynthetic rate and transpiration rate showed a downward trend”
t0“Grape”
Claim · model-written summary
Net photosynthetic rate across leaves 1–9 rose then fell, peaking at leaf 4.
Verbatim
e0“net the photosynthetic rate at the 1st to 9th leaf above the fruiting branch was firstly increased and then decreased,and the maximum of net photosynthetic rate appeared in the 4th leaf above the fruiting branch”
t0“Grape”
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See all 6 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.