Abstract
In this study, we investigated the effect of nutrient supply periods on the fruit growth and quality of 'Duke' blueberry. The nutrient solution was contained with NO 3 -N 4.6, NH 4 -N 3.4, PO 4 -P 3.3, K 3.0, Ca 4.6, and Mg 2.2 mmolL -1 , and EC in the nutrient solution was 1.5 ds.m -1 . In 2017 and 2018, an individual blueberry bush was supplied with 8 L of the nutrient solution per week. In 2018, the drainage water quality of growing medium and fruit quality was investigated. The nutrient supply was started from April 01, and stopped at 15 days intervals as follows, 15 days before final harvest, at the final harvest date (June 30), 15 days after final harvest (DAFH), 30 DAFH, 45 DAFH, and 60 DAFH. The content of inorganic components in the growing medium was not significantly different by the stop time of nutrient supply, but the content of phosphorus (P 2 O 5 ) tended to increase with the delay of stop time of nutrient supply. There were no significant differences in the fruit quality characteristics in terms of size, sugar content, and acidity among the different stop time of nutrient supply. The blueberry yield was tended to decrease with the delay of periods of nutrient supply, while the lowest yield of 1.8 kg was recorded when nutrient supply stopped at 45 and 60 DAFH.
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Claims 5
Claim · model-written summary
Stop time of nutrient supply did not significantly change Duke blueberry fruit size, sugar content or acidity.
- Taxon
- blueberrye0
- Material
- Dukee0
- Treatment
- stop time of nutrient supplye1
- Outcome
- fruit quality characteristics in terms of size, sugar content, and aciditye1
- Direction
- no significant differencese1
- Setting
- Unheated Plastic Houset1
Not reportedComparator
Verbatim
e0“fruit growth and quality of 'Duke' blueberry”
e1“There were no significant differences in the fruit quality characteristics in terms of size, sugar content, and acidity among the different stop time of nutrient supply”
t1“Unheated Plastic House”
Claim · model-written summary
Stop time of nutrient supply did not significantly change inorganic components in the growing medium.
- Taxon
- blueberrye0
- Material
- Dukee0
- Treatment
- stop time of nutrient supplye1
- Outcome
- content of inorganic components in the growing mediume1
- Direction
- not significantly differente1
- Setting
- Unheated Plastic Houset1
Not reportedComparator
Verbatim
e0“fruit growth and quality of 'Duke' blueberry”
e1“The content of inorganic components in the growing medium was not significantly different by the stop time of nutrient supply”
t1“Unheated Plastic House”
Claim · model-written summary
Delaying the stop time of nutrient supply tended to increase phosphorus content in the growing medium.
- Taxon
- blueberrye0
- Material
- Dukee0
- Treatment
- delay of stop time of nutrient supplye1
- Outcome
- content of phosphorus (P 2 O 5 )e1
- Direction
- tended to increasee1
- Setting
- Unheated Plastic Houset1
Not reportedComparator
Verbatim
e0“fruit growth and quality of 'Duke' blueberry”
e1“the content of phosphorus (P 2 O 5 ) tended to increase with the delay of stop time of nutrient supply”
t1“Unheated Plastic House”
Claim · model-written summary
Delaying the periods of nutrient supply tended to decrease blueberry yield.
- Taxon
- blueberrye0
- Material
- Dukee0
- Treatment
- delay of periods of nutrient supplye1
- Outcome
- blueberry yielde1
- Direction
- tended to decreasee1
- Setting
- Unheated Plastic Houset1
Not reportedComparator
Verbatim
e0“fruit growth and quality of 'Duke' blueberry”
e1“The blueberry yield was tended to decrease with the delay of periods of nutrient supply”
t1“Unheated Plastic House”
Claim · model-written summary
Stopping nutrient supply at 45 and 60 days after harvest gave the lowest blueberry yield, 1.8 kg.
- Taxon
- blueberrye0
- Material
- Dukee0
- Treatment
- nutrient supply stopped at 45 and 60 DAFHe1
- Outcome
- yielde1
- Direction
- loweste1
- Value
- 1.8 kge1
- Setting
- Unheated Plastic Houset1
Not reportedComparator
Verbatim
e0“fruit growth and quality of 'Duke' blueberry”
e1“the lowest yield of 1.8 kg was recorded when nutrient supply stopped at 45 and 60 DAFH”
t1“Unheated Plastic House”
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