Paper · 2023 · Crop Science

Early generation seed starter materials and approaches to seed production: Challenge for improving the potato seed system in Uganda

Prossy Namugga; Son Aijuka; Osbert Arinda; et al.

10
claims
20
verbatim quotes
4
citations
1
research areas
✓
Open access

Abstract

Abstract Quality seed is one of the key inputs for increasing potato ( Solanum tuberosum L .) productivity; however, its limited availability is widely recognized as a major constraint to potato production. In Uganda, certified seed production meets approximately 1.5% of effective demand implying most farmers use home‐saved seed. This practice encourages the buildup of degenerative seed‐borne diseases which ultimately affect productivity. Consequently, a study was conducted to determine the productivity of different seed potato production starting stock: tissue culture plantlets (TC) and rooted apical cuttings. Fifty plants of two potato varieties, NAROPOT1 and NAROPOT4, and for each starter material were evaluated both in the field and screen house for two seasons at Kachwekano and Karengyere research stations. Data were collected on the number of tubers per plant and tuber weight. Highly significant differences were observed for the type of starter materials and varieties for the number of tubers per plant ( p ≤ 0.001) from both the screen house and field environments. More tubers per plant were obtained from TC for both varieties and the highest recorded was (24.5) for NAROPOT4 and (15.5) for NAROPOT1 in the screen house. Tuber weight was higher from rooted apical cuttings for both varieties NAROPOT1 (153.3 g) and NAROPOT4 (167.7 g). The correlation between the number of tubers per plant and weight was highly significant at p ≤ 0.001. Tissue culture raised plants were more productive in terms of tuber, and numbers are more important in seed production than weight and mini‐tuber production can be done by farmers under affordable conditions.

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Claims 10

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Certified potato seed production in Uganda meets approximately 1.5% of effective demand.

Outcome
certified seed productione0
Value
approximately 1.5%e0
Setting
Ugandae0

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“In Uganda, certified seed production meets approximately 1.5% of effective demand”

✓ located verbatim in the source · abstract, characters 207–288 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Starter material and variety significantly differed in tubers per plant in screen house and field.

Material
varietiese0
Treatment
type of starter materialse0
Outcome
number of tubers per plante0
Setting
screen house and field environmentse0

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Highly significant differences were observed for the type of starter materials and varieties for the number of tubers per plant ( p ≤ 0.001) from both the screen house and field environments.”

✓ located verbatim in the source · abstract, characters 896–1087 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tissue culture produced more tubers per plant for NAROPOT4 than rooted apical cuttings, reaching 24.5 in the screen house.

Material
NAROPOT4e0
Treatment
TCe0
Outcome
tubers per plante0
Direction
Moree0
Value
24.5e0
Setting
screen housee0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“More tubers per plant were obtained from TC for both varieties and the highest recorded was (24.5) for NAROPOT4 and (15.5) for NAROPOT1 in the screen house.”

✓ located verbatim in the source · abstract, characters 1088–1244 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tissue culture produced more tubers per plant for NAROPOT1 than rooted apical cuttings, reaching 15.5 in the screen house.

Material
NAROPOT1e0
Treatment
TCe0
Outcome
tubers per plante0
Direction
Moree0
Value
15.5e0
Setting
screen housee0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“More tubers per plant were obtained from TC for both varieties and the highest recorded was (24.5) for NAROPOT4 and (15.5) for NAROPOT1 in the screen house.”

✓ located verbatim in the source · abstract, characters 1088–1244 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rooted apical cuttings produced higher tuber weight for NAROPOT1, at 153.3 g.

Material
NAROPOT1e0
Treatment
rooted apical cuttingse0
Outcome
Tuber weighte0
Direction
highere0
Value
153.3 ge0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Tuber weight was higher from rooted apical cuttings for both varieties NAROPOT1 (153.3 g) and NAROPOT4 (167.7 g).”

✓ located verbatim in the source · abstract, characters 1245–1358 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rooted apical cuttings produced higher tuber weight for NAROPOT4, at 167.7 g.

Material
NAROPOT4e0
Treatment
rooted apical cuttingse0
Outcome
Tuber weighte0
Direction
highere0
Value
167.7 ge0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Tuber weight was higher from rooted apical cuttings for both varieties NAROPOT1 (153.3 g) and NAROPOT4 (167.7 g).”

✓ located verbatim in the source · abstract, characters 1245–1358 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Tuber number and weight were significantly correlated.

Organ / stage
tuberse0
Outcome
number of tubers per plant and weighte0

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The correlation between the number of tubers per plant and weight was highly significant at p ≤ 0.001.”

✓ located verbatim in the source · abstract, characters 1359–1461 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Observationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors judged tissue culture raised plants more productive for tuber number.

Treatment
Tissue culturee0
Outcome
tubere0
Direction
more productivee0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Tissue culture raised plants were more productive in terms of tuber, and numbers are more important in seed production than weight and mini‐tuber production can be done by farmers under affordable conditions.”

✓ located verbatim in the source · abstract, characters 1462–1670 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors considered tuber number more important than weight in seed production.

Outcome
numbers are more important in seed production than weighte0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“numbers are more important in seed production than weight”

✓ located verbatim in the source · abstract, characters 1535–1592 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors concluded farmers can produce mini-tubers under affordable conditions.

Outcome
mini‐tuber production can be done by farmers under affordable conditionse0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“mini‐tuber production can be done by farmers under affordable conditions”

✓ located verbatim in the source · abstract, characters 1597–1669 · show in text ↑
t0

“potato seed system in Uganda”

✓ located verbatim in the source · title, characters 103–131 · show in text ↑

in vitro · yield · Solanum tuberosum (potato)Positive and negative results

25 papers: 24 positive, 1 negative or no effect

23 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. positive

21 papers more in this group

See all 25 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.