Abstract
Nutrient solution concentration (NSC) is a critical factor affecting plant growth in hydroponics. Here, we investigated the effects of hydroponic NSC on the growth and yield of sweetpotato (Ipomoea batatas (L.) Lam.) plants. First, sweetpotato cuttings were cultivated hydroponically in three different NSCs with low, medium, or high electrical conductivity (EC; 0.8, 1.4, and 2.6 dS m−1, respectively). Shoot growth and storage root yield increased at 143 days after plantation (DAP), depending on the NSC. Next, we examined the effect of NSC changes at half of the cultivation period on the growth and yield, using high and low NSC conditions. In plants transferred from high to low EC (HL plants), the number of attached leaves increased toward the end of the first half of the cultivation period (73 DAP), compared with plants transferred from low to high EC (LH plants). Additionally, the number of attached leaves decreased in HL plants from 73 DAP to the end of the cultivation period (155 DAP), whereas this value increased in LH plants. These changes occurred due to a high leaf abscission ratio in HL plants. The storage root yield showed no significant difference between HL and LH plants. Our results suggest that the regulation of hydroponic NSC during the cultivation period affects the growth characteristics of sweetpotato.
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Claims 6
Claim · model-written summary
Shoot growth and storage root yield increased with nutrient solution concentration at 143 days.
- Taxon
- sweetpotato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- NSCe0
- Outcome
- Shoot growth and storage root yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Shoot growth and storage root yield increased at 143 days after plantation (DAP), depending on the NSC.”
t0“sweetpotato”
Claim · model-written summary
High to low EC plants had more attached leaves than low to high EC plants at 73 days.
- Taxon
- sweetpotatoIpomoea batatast0
- Treatment
- high to low EC (HL plants)e0
- Outcome
- number of attached leavese0
- Direction
- increasede0
- Comparator
- plants transferred from low to high EC (LH plants)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In plants transferred from high to low EC (HL plants), the number of attached leaves increased toward the end of the first half of the cultivation period (73 DAP), compared with plants transferred from low to high EC (LH plants).”
t0“Effect of Nutrient Solution Concentration on the Growth of Hydroponic Sweetpotato”
Claim · model-written summary
Attached leaves decreased in HL plants through 155 days.
- Taxon
- sweetpotatoIpomoea batatast0
- Material
- HL plantse0
- Outcome
- number of attached leavese0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the number of attached leaves decreased in HL plants from 73 DAP to the end of the cultivation period (155 DAP)”
t0“Sweetpotato”
Claim · model-written summary
Attached leaves increased in LH plants.
- Taxon
- SweetpotatoIpomoea batatast0
- Material
- LH plantse0
- Outcome
- this valuee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this value increased in LH plants.”
t0“Sweetpotato”
Claim · model-written summary
HL plants had a high leaf abscission ratio.
- Taxon
- SweetpotatoIpomoea batatast0
- Material
- HL plantse0
- Outcome
- high leaf abscission ratioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These changes occurred due to a high leaf abscission ratio in HL plants.”
t0“Sweetpotato”
Claim · model-written summary
Storage root yield did not differ significantly between HL and LH plants.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- HLe0
- Outcome
- storage root yielde0
- Direction
- no significant differencee0
- Comparator
- LH plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The storage root yield showed no significant difference between HL and LH plants.”
t0“Sweetpotato”
The same questions in other papers
fertilization · yield · Ipomoea batatas (sweet potato)Positive and negative results
125 papers in the same direction as this paper · 18 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- negative
141 papers more in this group
See all 145 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.