Abstract
Introduction. The effective use of mycorrhizal inoculants poses a challenge for Cuban agriculture. Sweet potato is an important crop for human and animal nutrition, being a mycorrhizal crop with a successful breeding program. Objective. To determine whether all sweet potato cultivars respond to inoculation and if the effectiveness of inoculants varies among cultivars and planting seasons. Materials and methods. Two experiments were conducted during 2010 - 2012 in Eutric Cambisols in Villa Clara, Cuba, one for each planting season and repeated twice. Seventeen cultivars were evaluated for their response to the application of three inoculants, in the presence of a half the fertilization dose, and three non-inoculated treatments with fertilization levels of 0, 50, and 100 % of the nitrogen, phosphorus, and potassium dose (100 % NPK). A split plot design was used. Root yields, colonization frequency, and mycorrizal spore production were evaluated as response variables. Results. Cultivars responded positively to inoculation and fertilization, showing differences in yields. However, the highest yields were obtained when inoculated with Rhizoglomus irregulare/ INCAM-11, surpassing (p≤0.05) those obtained with only 50 % of the NPK dose. In the rainy season with higher yields, the differentiation between inoculants was more pronounced, and in thirteen and nine of the cultivars, yields obtained with INCAM-11 were higher (p≤0.05) to those obtained with Glomus cubense/ INCAM-4 and 100 % NPK, respectively. In the dry season, no significant differences were found between yields obtained by inoculating INCAM-11 or INCAM-4 or applying 100 % NPK. In both seasons, inoculation with Funneliformis mosseae/ INCAM-2 was consistently lower. Colonization frequencies and spore production were always higher (p≤0.05) when INCAM-11 was inoculated. Conclusion. Under these soil conditions evaluated, inoculation with INCAM-11 showed higher effectiviveness for all cultivars and planting seasons, resulting in a higher yields and mycorrhizal performance indicators.
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Claims 8
Claim · model-written summary
Cultivars responded positively to inoculation and fertilization, with differing yields.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- inoculation and fertilizatione0
- Outcome
- yieldse0
- Direction
- positivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“Cultivars responded positively to inoculation and fertilization, showing differences in yields.”
Claim · model-written summary
Rhizoglomus irregulare/ INCAM-11 produced the highest yields, exceeding 50 % NPK alone.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- inoculated with Rhizoglomus irregulare/ INCAM-11e0
- Interactor
- Rhizoglomus irregulare/ INCAM-11e0symbiont
- Outcome
- yieldse0
- Direction
- surpassinge0
- Comparator
- 50 % of the NPK dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“the highest yields were obtained when inoculated with Rhizoglomus irregulare/ INCAM-11, surpassing (p≤0.05) those obtained with only 50 % of the NPK dose”
Claim · model-written summary
Rainy season yields were higher and inoculant differences more pronounced.
- Taxon
- sweet potatoIpomoea batatast0
- Outcome
- yieldse0
- Direction
- highere0
- Setting
- rainy seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“In the rainy season with higher yields, the differentiation between inoculants was more pronounced”
Claim · model-written summary
In thirteen cultivars, rainy season yields with INCAM-11 exceeded INCAM-4.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- INCAM-11e0
- Interactor
- Glomus cubense/ INCAM-4Glomus cubensee0symbiont
- Outcome
- yieldse0
- Direction
- highere0
- Value
- thirteene0
- Comparator
- Glomus cubense/ INCAM-4e0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“in thirteen and nine of the cultivars, yields obtained with INCAM-11 were higher (p≤0.05) to those obtained with Glomus cubense/ INCAM-4 and 100 % NPK, respectively”
Claim · model-written summary
In nine cultivars, rainy season yields with INCAM-11 exceeded 100 % NPK.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- INCAM-11e0
- Outcome
- yieldse0
- Direction
- highere0
- Value
- ninee0
- Comparator
- 100 % NPKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“in thirteen and nine of the cultivars, yields obtained with INCAM-11 were higher (p≤0.05) to those obtained with Glomus cubense/ INCAM-4 and 100 % NPK, respectively”
Claim · model-written summary
Dry season yields did not differ significantly among INCAM-11, INCAM-4 and 100 % NPK.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- inoculating INCAM-11e0
- Outcome
- yieldse0
- Direction
- no significant differencese0
- Comparator
- INCAM-4 or applying 100 % NPKe0
- Setting
- dry seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“In the dry season, no significant differences were found between yields obtained by inoculating INCAM-11 or INCAM-4 or applying 100 % NPK.”
Claim · model-written summary
Funneliformis mosseae/ INCAM-2 yielded consistently lower results in both seasons.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- inoculation with Funneliformis mosseae/ INCAM-2e0
- Interactor
- Funneliformis mosseae/ INCAM-2
Funneliformis mosseaee0symbiont - Outcome
- inoculation with Funneliformis mosseae/ INCAM-2 was consistently lowere0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“In both seasons, inoculation with Funneliformis mosseae/ INCAM-2 was consistently lower.”
Claim · model-written summary
INCAM-11 increased colonization frequency and spore production.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- INCAM-11 was inoculatede0
- Outcome
- Colonization frequencies and spore productione0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“sweet potato (Ipomoea batata)”
e0“Colonization frequencies and spore production were always higher (p≤0.05) when INCAM-11 was inoculated.”
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