Abstract
ABSTRACT To increase genetic variability, sweet potato needs to be sexually propagated in breeding programs. However, its seeds have a hard and thick integument, requiring some dormancy breaking method. Chemical treatment of seeds allows greater efficiency of the relationship between seeds obtained in crosses and those that germinate, providing genotypes to be tested for their potential, aiming at developing a new commercial cultivar. Thus, the objective of this study was to identify the effects of immersion times of seeds in sulfuric acid (98%) on the germination and initial growth of sweet potato seedlings. The seeds were immersed for five different times: 0 (control), 20, 40, 60, and 80 min. The experiment was carried out in a completely randomized design with ten repetitions consisting of 25 seeds each experimental plot. The germination percentage, germination speed index (GSI), dry mass of whole seedlings, and length of the largest root and shoot of the seedlings were evaluated. The germination percentage and GSI increased with immersion time until 53.30 min, with maximum estimated values of 85.39 and 25.10%, respectively. For the parameters dry mass of whole seedlings, length of the largest root, and shoot length, increases were observed up to 55.00, 37.63, and 44.44 min, respectively. In conclusion, the immersion of sweet potato seeds in sulfuric acid (98%) for 53 min is ideal for breaking dormancy and providing better conditions for the initial development of seedlings.
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Claims 6
Claim · model-written summary
Seed germination percentage rose with immersion time to 53.30 min, reaching an estimated maximum of 85.39%.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatase1 - Treatment
- immersion timee0
- Outcome
- germination percentagee0
- Direction
- increasede0
- Value
- 85.39e0
- Qualifier
- 53.30 mine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“The germination percentage and GSI increased with immersion time until 53.30 min, with maximum estimated values of 85.39 and 25.10%, respectively”
e1“sweet potato seeds in sulfuric acid (98%)”
Claim · model-written summary
Germination speed index rose with immersion time to 53.30 min, reaching an estimated maximum of 25.10%.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- immersion timee0
- Outcome
- GSIe0
- Direction
- increasede0
- Value
- 25.10%e0
- Qualifier
- 53.30 mine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage and GSI increased with immersion time until 53.30 min, with maximum estimated values of 85.39 and 25.10%, respectively”
e1“sweet potato seeds in sulfuric acid (98%)”
Claim · model-written summary
Seedling dry mass increased with soaking times up to 55.00 min.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- sulfuric acid (98%)e1
- Outcome
- dry mass of whole seedlingse0
- Direction
- increasese0
- Value
- 55.00e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry mass of whole seedlings, length of the largest root, and shoot length, increases were observed up to 55.00, 37.63, and 44.44 min, respectively”
e1“sweet potato seeds in sulfuric acid (98%)”
Claim · model-written summary
Largest root length increased with soaking times up to 37.63 min.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- sulfuric acid (98%)e1
- Outcome
- length of the largest roote0
- Direction
- increasese0
- Value
- 37.63e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“length of the largest root, and shoot length, increases were observed up to 55.00, 37.63, and 44.44 min, respectively”
e1“sweet potato seeds in sulfuric acid (98%)”
Claim · model-written summary
Shoot length increased with soaking times up to 44.44 min.
- Taxon
- sweet potatoIpomoea batatase1
- Treatment
- sulfuric acid (98%)e1
- Outcome
- shoot lengthe0
- Direction
- increasese0
- Value
- 44.44 mine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot length, increases were observed up to 55.00, 37.63, and 44.44 min, respectively”
e1“sweet potato seeds in sulfuric acid (98%)”
Claim · model-written summary
The authors recommend 53 min in 98% sulfuric acid to break dormancy and improve early seedling development.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- sulfuric acid (98%) for 53 mine0
- Outcome
- breaking dormancy and providing better conditions for the initial development of seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“immersion of sweet potato seeds in sulfuric acid (98%) for 53 min is ideal for breaking dormancy and providing better conditions for the initial development of seedlings”
The same questions in other papers
sulfuric acid · growth · Ipomoea batatas (sweet potato)Results agree
2 papers in the same direction as this paper
- positive
- positive
application · growth · Ipomoea batatas (sweet potato)Positive and negative results
10 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
9 papers more in this group
See all 13 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.