Abstract
This study was conducted to improve a nutrient solution composition to grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation. From September in 2020 to late May (40 days after harvest) in 2022, young blueberry plants were supplied with different compositions of nutrient solution, a 25% increase (NK increase) and a 25% decrease (NK decrease) in N and K concentrations, compared with a nutrient solution for the unheated greenhouse cultivation (control). Fruit size was not consistently affected by the nutrient compositions in the two seasons. Fruit yield in both 2021 and 2022 increased by 14 -22% for the NK increase, but decreased by 13 -59% for the NK decrease, compared with the control. Total shoot length per plant was 28 -56% longer for the NK increase than the control, while it was 33 -47% shorter for the NK decrease. Total dry weight per plant increased by 25% for the NK increase, especially 2.4-fold greater in root, which contrasted with a 17% reduction for the NK decrease. 7.2% and 51.2% of the total dry weight of a plant were partitioned to root and fruit for the control, respectively. The root partitioning of the dry weight increased to 14.1% for the NK increase, while the fruit partitioning increased to 54.1% for the NK decrease. The NK increase resulted in 49% and 30% increases in the total N and K contents per plant, respectively, compared with those of the control, while the NK decrease caused 41% and 21% reduction in the respective total content. When N and K increased in the nutrient solution, the root partitioning increased with lower leaf and fruit partitioning of inorganic elements, compared with the control. However, the root partitioning decreased with higher fruit partitioning for the NK decrease. The result indicated that the NK 25% increase of nutrient solution helps promote root growth with higher nutrient absorption, increasing the whole plant growth and the yield.
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Claims 19
Claim · model-written summary
Fruit yield increased by 14 to 22% under the NK increase compared with the control.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e2“Fruit yield in both 2021 and 2022 increased by 14 -22% for the NK increase, but decreased by 13 -59% for the NK decrease, compared with the control”
Claim · model-written summary
Fruit yield decreased by 13 to 59% under the NK decrease compared with the control.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e2“Fruit yield in both 2021 and 2022 increased by 14 -22% for the NK increase, but decreased by 13 -59% for the NK decrease, compared with the control”
Claim · model-written summary
Fruit size was not consistently affected by the nutrient compositions across the two seasons.
- Taxon
- southern highbush blueberrye1
- Treatment
- nutrient compositionse3
- Outcome
- Fruit sizee3
- Direction
- no_changeinferrede3
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e3“Fruit size was not consistently affected by the nutrient compositions in the two seasons”
Claim · model-written summary
Total shoot length per plant was 28 to 56% longer under the NK increase than the control.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e4“Total shoot length per plant was 28 -56% longer for the NK increase than the control, while it was 33 -47% shorter for the NK decrease”
Claim · model-written summary
Total shoot length per plant was 33 to 47% shorter under the NK decrease.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e4“Total shoot length per plant was 28 -56% longer for the NK increase than the control, while it was 33 -47% shorter for the NK decrease”
Claim · model-written summary
Total dry weight per plant increased by 25% under the NK increase.
- Taxon
- southern highbush blueberrye1
- Treatment
- NK increasee5
- Outcome
- Total dry weight per plante5
- Direction
- increasede5
- Value
- 25%e5
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e5“Total dry weight per plant increased by 25% for the NK increase, especially 2.4-fold greater in root, which contrasted with a 17% reduction for the NK decrease”
Claim · model-written summary
Root dry weight per plant was 2.4-fold greater under the NK increase.
- Taxon
- southern highbush blueberrye1
- Organ / stage
- roote5
- Treatment
- NK increasee5
- Outcome
- roote5
- Direction
- greatere5
- Value
- 2.4-folde5
- Qualifier
- dry weight per plante5
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e5“Total dry weight per plant increased by 25% for the NK increase, especially 2.4-fold greater in root, which contrasted with a 17% reduction for the NK decrease”
Claim · model-written summary
Total dry weight per plant was reduced by 17% under the NK decrease.
- Taxon
- southern highbush blueberrye1
- Treatment
- NK decreasee5
- Outcome
- Total dry weight per plante5
- Direction
- reductione5
- Value
- 17%e5
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e5“Total dry weight per plant increased by 25% for the NK increase, especially 2.4-fold greater in root, which contrasted with a 17% reduction for the NK decrease”
Claim · model-written summary
Control plants partitioned 7.2% of total dry weight to root.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e6“7.2% and 51.2% of the total dry weight of a plant were partitioned to root and fruit for the control, respectively”
Claim · model-written summary
Control plants partitioned 51.2% of total dry weight to fruit.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e6“7.2% and 51.2% of the total dry weight of a plant were partitioned to root and fruit for the control, respectively”
Claim · model-written summary
Root partitioning of dry weight increased to 14.1% under the NK increase.
- Taxon
- southern highbush blueberrye1
- Organ / stage
- roote7
- Treatment
- NK increasee7
- Outcome
- root partitioning of the dry weighte7
- Direction
- increasede7
- Value
- 14.1%e7
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e7“The root partitioning of the dry weight increased to 14.1% for the NK increase, while the fruit partitioning increased to 54.1% for the NK decrease”
Claim · model-written summary
Fruit partitioning of dry weight increased to 54.1% under the NK decrease.
- Taxon
- southern highbush blueberrye1
- Organ / stage
- fruite7
- Treatment
- NK decreasee7
- Outcome
- fruit partitioninge7
- Direction
- increasede7
- Value
- 54.1%e7
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e7“The root partitioning of the dry weight increased to 14.1% for the NK increase, while the fruit partitioning increased to 54.1% for the NK decrease”
Claim · model-written summary
Total N content per plant increased by 49% under the NK increase compared with the control.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e0“The NK increase resulted in 49% and 30% increases in the total N and K contents per plant, respectively, compared with those of the control”
Claim · model-written summary
Total K content per plant increased by 30% under the NK increase compared with the control.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e0“The NK increase resulted in 49% and 30% increases in the total N and K contents per plant, respectively, compared with those of the control”
Claim · model-written summary
Total N content per plant was reduced by 41% under the NK decrease.
- Taxon
- southern highbush blueberrye1
- Treatment
- NK decreasee2
- Outcome
- total contente2
- Direction
- reductione2
- Value
- 41%e2
- Qualifier
- respective total contente2
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e2“while the NK decrease caused 41% and 21% reduction in the respective total content”
Claim · model-written summary
Total K content per plant was reduced by 21% under the NK decrease.
- Taxon
- southern highbush blueberrye1
- Treatment
- NK decreasee2
- Outcome
- total contente2
- Direction
- reductione2
- Value
- 21%e2
- Qualifier
- respective total contente2
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e2“while the NK decrease caused 41% and 21% reduction in the respective total content”
Claim · model-written summary
Under the N and K increase, leaf and fruit partitioning of inorganic elements was lower than in the control.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e2“When N and K increased in the nutrient solution, the root partitioning increased with lower leaf and fruit partitioning of inorganic elements, compared with the control”
Claim · model-written summary
Under the N and K decrease, root partitioning decreased with higher fruit partitioning.
- Taxon
- southern highbush blueberrye1
- Organ / stage
- fruite2
- Treatment
- NK decreasee2
- Outcome
- root partitioninge2
- Direction
- decreasede2
- Setting
- heated greenhouse cultivatione1
Not reportedComparator
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e2“However, the root partitioning decreased with higher fruit partitioning for the NK decrease”
Claim · model-written summary
The NK 25% increase of nutrient solution is interpreted to promote root growth with higher nutrient absorption and thereby whole plant growth and yield.
Verbatim
e1“grow southern highbush blueberry cultivar 'Scintilla' in a pot in the heated greenhouse cultivation”
e2“The result indicated that the NK 25% increase of nutrient solution helps promote root growth with higher nutrient absorption, increasing the whole plant growth and the yield”