Abstract
Single‐node leafy cuttings of sweetpotato [ Ipomoea batatas (L.) Lam. cv. Beniazuma] plants can be used to produce low‐cost, pathogen‐free sweetpotato plug transplants. This study was conducted to determine the effects of plug volume and root removal on sweetpotato growth and yield after planting in the field. The yield and growth of sweetpotato plants from transplants with 4 to 6 unfolded leaves (about 0.14‐m shoot length) produced in 55‐ or 35‐mL multicell plug trays, then planted intact or without roots were compared with a control treatment of unrooted conventional cuttings (about 0.3‐m‐long terminal vine cutting with 7 to 8 unfolded leaves). The plug transplants were grown from single node leafy cuttings under artificial light. Intact plug transplants (35 or 55 mL) produced 39 to 40 Mg ha −1 of storage roots 128 d after planting in the field, 11 to 12 Mg ha −1 greater than the control treatment. After 128 d of field growth, plug transplants (35 mL, with roots) gave a percent harvest index of 79%, 7% greater than the control. The maximum length and diameter of storage roots were, respectively, 271 and 68 mm when plug transplants were used (35 mL, with roots), and were, respectively, 58 mm longer and 18 mm wider than the control. Overall, growth and yield from plug transplants were significantly higher than from conventional cuttings, regardless of the plug volume or root removal. Plug transplants with intact roots produced greater growth and yield regardless of plug volume than did plug transplants without roots.
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Claims 6
Claim · model-written summary
Intact plug transplants yielded 39 to 40 Mg ha −1 of storage roots, 11 to 12 Mg ha −1 above conventional cuttings.
- Taxon
- Sweetpotato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- Intact plug transplants (35 or 55 mL)e0
- Outcome
- storage rootse0
- Direction
- greatere0
- Value
- 39 to 40 Mg ha −1e0
- Qualifier
- 128 d after planting in the fielde0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Intact plug transplants (35 or 55 mL) produced 39 to 40 Mg ha −1 of storage roots 128 d after planting in the field, 11 to 12 Mg ha −1 greater than the control treatment”
t0“Sweetpotato”
Claim · model-written summary
The 35 mL rooted plug transplant had a 79% harvest index, 7% greater than the control.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- plug transplants (35 mL, with roots)e0
- Outcome
- percent harvest indexe0
- Direction
- greatere0
- Value
- 79%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plug transplants (35 mL, with roots) gave a percent harvest index of 79%, 7% greater than the control”
t0“Sweetpotato”
Claim · model-written summary
Storage roots from 35 mL rooted plugs reached 271 mm maximum length, 58 mm longer than control.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- plug transplants were used (35 mL, with roots)e0
- Outcome
- maximum lengthe0
- Direction
- longere0
- Value
- 271e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum length and diameter of storage roots were, respectively, 271 and 68 mm when plug transplants were used (35 mL, with roots), and were, respectively, 58 mm longer and 18 mm wider than the control”
t0“Sweetpotato”
Claim · model-written summary
Storage roots from 35 mL rooted plugs reached 68 mm maximum diameter, 18 mm wider than control.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- plug transplants were used (35 mL, with roots)e0
- Outcome
- diameter of storage rootse0
- Direction
- widere0
- Value
- 68 mme0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum length and diameter of storage roots were, respectively, 271 and 68 mm when plug transplants were used (35 mL, with roots), and were, respectively, 58 mm longer and 18 mm wider than the control”
t0“Sweetpotato”
Claim · model-written summary
Plug transplants had significantly higher growth and yield than conventional cuttings regardless of plug volume or root removal.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- plug transplantse0
- Outcome
- growth and yielde0
- Direction
- highere0
- Qualifier
- regardless of the plug volume or root removale0
- Comparator
- conventional cuttingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth and yield from plug transplants were significantly higher than from conventional cuttings, regardless of the plug volume or root removal”
t0“Sweetpotato”
Claim · model-written summary
Rooted plug transplants had greater growth and yield than rootless plugs at either volume.
- Taxon
- SweetpotatoIpomoea batatast0
- Treatment
- Plug transplants with intact rootse0
- Outcome
- growth and yielde0
- Direction
- greatere0
- Comparator
- plug transplants without rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plug transplants with intact roots produced greater growth and yield regardless of plug volume than did plug transplants without roots”
t0“Sweetpotato”
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See all 18 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.