Paper · 2000 · Plant Production Science

Nurturing of Plantlets Using Cut Pieces from the Storage Roots of Sweet Potatoes (Ipomoea batatas(L.) Lam.) and their Productivity in the Field

Masataka Yamashita

7
claims
17
verbatim quotes
6
citations
3
research areas
✓
Open access · cc-by

Abstract

A new nurturing method was studied using pieces cut from storage roots to reduce the time-consuming and laborious works (raising, preparing, and transplanting of cut sprouts), which accounts for about 60% of the total working hours in sweet potato production by the conventional method. The experiments were conducted in 1997 and 1998 using 1– and 10–g (fresh weight) cut pieces from storage roots (cultivar ; Koganesengan). Five kinds of growth regulators were applied at the concentrations ranging from 0 to 200 mg L–1 to promote rooting and shooting from the pieces. After the treatment with growth regulators, the pieces were subjected to an antiseptic curing treatment, and then incubated on wet vermiculite at 30°C. Rooting was effectively induced by IAA, and shooting by ABA, within one to two weeks. The plantlets were developed from 10–g pieces with periderm after the treatment with ABA, and were nurtured for 10, 30 and 50 days. They vigorously grew with no transplanting injury after being planted in the field in early May. They were harvested in late October and were compared for shoot growth and productivity with the control (the conventional method using cut sprouts). The plantlets nurtured for 50 days achieved the highest yield and the best qualities and did not show the thickening of mother roots obserbed in direct planting using whole storage roots. In conclusion, the new nurturing method is superior to conventional methods in both productivity and quality. However, there are still several problems to be solved, such as low shooting rate and so on.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

IAA effectively induced rooting of sweet potato storage-root pieces within one to two weeks.

Taxon
sweet potatoIpomoea batatase2
Treatment
IAAe1
Outcome
Rootinge1
Direction
effectively inducede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Rooting was effectively induced by IAA, and shooting by ABA, within one to two weeks”

✓ located verbatim in the source · abstract, characters 722–806 · show in text ↑
e2

“sweet potato production”

✓ located verbatim in the source · abstract, characters 235–258 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA induced shooting of sweet potato storage-root pieces within one to two weeks.

Taxon
sweet potatoIpomoea batatase2
Treatment
ABAe1
Outcome
shootinge1
Direction
inducede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Rooting was effectively induced by IAA, and shooting by ABA, within one to two weeks”

✓ located verbatim in the source · abstract, characters 722–806 · show in text ↑
e2

“sweet potato production”

✓ located verbatim in the source · abstract, characters 235–258 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Plantlets nurtured for 50 days achieved the highest yield compared with the control.

Taxon
sweet potatoIpomoea batatase3
Treatment
nurtured for 50 dayse1
Outcome
yielde1
Direction
higheste1
Comparator
controle2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“The plantlets nurtured for 50 days achieved the highest yield and the best qualities”

✓ located verbatim in the source · abstract, characters 1187–1271 · show in text ↑
e2

“were compared for shoot growth and productivity with the control”

✓ located verbatim in the source · abstract, characters 1077–1141 · show in text ↑
e3

“sweet potato production”

✓ located verbatim in the source · abstract, characters 235–258 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Plantlets nurtured for 50 days had the best quality compared with the control.

Taxon
sweet potatoIpomoea batatase3
Treatment
nurtured for 50 dayse1
Outcome
qualitiese1
Direction
beste1
Comparator
controle2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“The plantlets nurtured for 50 days achieved the highest yield and the best qualities”

✓ located verbatim in the source · abstract, characters 1187–1271 · show in text ↑
e2

“were compared for shoot growth and productivity with the control”

✓ located verbatim in the source · abstract, characters 1077–1141 · show in text ↑
e3

“sweet potato production”

✓ located verbatim in the source · abstract, characters 235–258 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Plantlets grew vigorously with no transplanting injury after planting in the field.

Taxon
sweet potatoIpomoea batatase3
Outcome
vigorously grewe4
Qualifier
no transplanting injurye4
Setting
in the fielde4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“sweet potato production”

✓ located verbatim in the source · abstract, characters 235–258 · show in text ↑
e4

“They vigorously grew with no transplanting injury after being planted in the field in early May”

✓ located verbatim in the source · abstract, characters 940–1035 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nurtured plantlets did not show thickening of mother roots, unlike direct planting of whole storage roots.

Taxon
sweet potatoIpomoea batatase3
Treatment
pieces cut from storage rootse6
Outcome
thickening of mother rootse5
Direction
decreaseinferrede5
Comparator
direct planting using whole storage rootse5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“sweet potato production”

✓ located verbatim in the source · abstract, characters 235–258 · show in text ↑
e5

“did not show the thickening of mother roots obserbed in direct planting using whole storage roots”

✓ located verbatim in the source · abstract, characters 1276–1373 · show in text ↑
e6

“using pieces cut from storage roots”

✓ located verbatim in the source · abstract, characters 35–70 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The new nurturing method is superior to conventional methods in productivity and quality of sweet potato.

Taxon
sweet potatoIpomoea batatase3
Treatment
new nurturing methode7
Outcome
productivity and qualitye7
Direction
superiore7
Comparator
conventional methodse7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“sweet potato production”

✓ located verbatim in the source · abstract, characters 235–258 · show in text ↑
e7

“the new nurturing method is superior to conventional methods in both productivity and quality”

✓ located verbatim in the source · abstract, characters 1390–1483 · show in text ↑

indole-3-acetic acid · growth · Ipomoea batatas (sweet potato)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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.