Abstract
Effects of stages of growth and intercropping of two sweet potato varieties (Hawassi-83 and Tula) (alone or with coffee or maize-haricot bean) on biomass yield and in vitro dry matter digestibility (IVDMD) of morphological fractions were assessed in Southern Ethiopia. Similar coffee plantations (age, density, soil type, topography) were selected for intercropping. Vines were planted on three plots per intercropping type at 15 days interval, and cultivated three times. Morphological fractions were collected from 1.0 m2 of land on 4th, 5th and 6th months for nutrient and partial budget analyses (revenue estimated for 100 m2 of land). Ten elders evaluated varieties at 2nd, 4th and 6th months after planting. Lowest DM (77 g/kg) was obtained from fresh Tula stem-petiole (FTSP) but highest (190 g/kg) from fresh Tula leaf (FTL) (p<0.05). Fresh Tula vine (FTV) had lowest (840 g/kg DM) organic matter and FTL (p<0.05) highest (914 g/kg DM). Crude protein content of fresh Hawassi-83 stem-petiole (FHSP) was lowest (113 g/kg DM) but that of FTL highest (269 g/kg DM). Lowest vine yield (0.27 kg/m2) was from Tula intercropped with coffee but highest (0.82 kg/m2) from maize-haricot bean intercropping followed by sole Hawassi-83 (0.56 kg/M2). Overall mean vine DM yield (333.6 g/m2) of maize-haricot bean intercropping was greater (p<0.05) than that of intercropping (174.0 g/m2) with coffee. IVDMD of fresh Hawassi-83 leaf (FHL) (78.0±0.27) and FTSP (77.0±0.10) were lowest but that of FHSP (84.3±0.59) and FTL (84.3±0.04) highest. Both Hawassi-83 and Tula vine were best produced when intercropped with maize-haricot bean, although Hawassi-83 was more profitable and preferred by respondents than Tula. Key words: Intercropping, morphological fractions, nutrients, stage of maturity, sweet potato vine.
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Claims 14
Claim · model-written summary
Fresh Tula stem-petiole had the lowest dry matter content, 77 g/kg.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Tulae0
- Organ / stage
- stem-petiolee0
- Outcome
- DMe0
- Direction
- Loweste0
- Value
- 77 g/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Lowest DM (77 g/kg) was obtained from fresh Tula stem-petiole (FTSP) but highest (190 g/kg) from fresh Tula leaf (FTL) (p<0.05)”
t0“sweet potato”
Claim · model-written summary
Fresh Tula leaves had the highest dry matter content, 190 g/kg.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Tulae0
- Organ / stage
- leafe0
- Outcome
- DMe0
- Direction
- higheste0
- Value
- 190 g/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Lowest DM (77 g/kg) was obtained from fresh Tula stem-petiole (FTSP) but highest (190 g/kg) from fresh Tula leaf (FTL) (p<0.05)”
t0“sweet potato”
Claim · model-written summary
Fresh Tula vine had the lowest organic matter content, 840 g/kg DM.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Tulae0
- Organ / stage
- vinee0
- Outcome
- organic mattere0
- Direction
- loweste0
- Value
- 840 g/kg DMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Fresh Tula vine (FTV) had lowest (840 g/kg DM) organic matter and FTL (p<0.05) highest (914 g/kg DM)”
t0“sweet potato”
Claim · model-written summary
Fresh Tula leaf had the highest organic matter content, 914 g/kg DM.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Tulae0
- Organ / stage
- FTLe0
- Outcome
- organic mattere0
- Direction
- higheste0
- Value
- 914 g/kg DMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Fresh Tula vine (FTV) had lowest (840 g/kg DM) organic matter and FTL (p<0.05) highest (914 g/kg DM)”
t0“sweet potato”
Claim · model-written summary
Fresh Hawassi-83 stem-petiole had the lowest crude protein content, 113 g/kg DM.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Hawassi-83e0
- Organ / stage
- stem-petiolee0
- Outcome
- Crude protein contente0
- Direction
- loweste0
- Value
- 113 g/kg DMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Crude protein content of fresh Hawassi-83 stem-petiole (FHSP) was lowest (113 g/kg DM) but that of FTL highest (269 g/kg DM)”
t0“sweet potato”
Claim · model-written summary
Fresh Tula leaf had the highest crude protein content, 269 g/kg DM.
- Taxon
- sweet potato
Ipomoea batatase1 - Material
- Tulae1
- Organ / stage
- FTLe0
- Outcome
- Crude protein contente0
- Direction
- higheste0
- Value
- 269 g/kg DMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Crude protein content of fresh Hawassi-83 stem-petiole (FHSP) was lowest (113 g/kg DM) but that of FTL highest (269 g/kg DM)”
e1“two sweet potato varieties (Hawassi-83 and Tula)”
Claim · model-written summary
Tula with coffee yielded the least vine biomass, 0.27 kg/m2.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Tulae0
- Treatment
- intercropped with coffeee0
- Outcome
- vine yielde0
- Direction
- Loweste0
- Value
- 0.27 kg/m2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Lowest vine yield (0.27 kg/m2) was from Tula intercropped with coffee but highest (0.82 kg/m2) from maize-haricot bean intercropping followed by sole Hawassi-83 (0.56 kg/M2)”
t0“sweet potato”
Claim · model-written summary
Maize-haricot bean intercropping yielded the most vines, 0.82 kg/m2.
- Taxon
- sweet potato
Ipomoea batatast0 - Treatment
- maize-haricot bean intercroppinge0
- Outcome
- vine yielde0
- Direction
- higheste0
- Value
- 0.82 kg/m2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Lowest vine yield (0.27 kg/m2) was from Tula intercropped with coffee but highest (0.82 kg/m2) from maize-haricot bean intercropping followed by sole Hawassi-83 (0.56 kg/M2)”
t0“sweet potato”
Claim · model-written summary
Sole Hawassi-83 vine yield was 0.56 kg/M2.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Hawassi-83e0
- Outcome
- sole Hawassi-83e0
- Value
- 0.56 kg/M2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“followed by sole Hawassi-83 (0.56 kg/M2)”
t0“sweet potato”
Claim · model-written summary
Maize-haricot bean intercropping had greater mean vine dry matter yield than coffee intercropping.
- Taxon
- sweet potato
Ipomoea batatast0 - Treatment
- maize-haricot bean intercroppinge0
- Outcome
- vine DM yielde0
- Direction
- greatere0
- Value
- 333.6 g/m2e0
- Qualifier
- 174.0 g/m2e0
- Comparator
- intercropping (174.0 g/m2) with coffeee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Overall mean vine DM yield (333.6 g/m2) of maize-haricot bean intercropping was greater (p<0.05) than that of intercropping (174.0 g/m2) with coffee”
t0“sweet potato”
Claim · model-written summary
Fresh Hawassi-83 leaf and fresh Tula stem-petiole had the lowest digestibility.
- Taxon
- sweet potato
Ipomoea batatast0 - Outcome
- IVDMDe0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“IVDMD of fresh Hawassi-83 leaf (FHL) (78.0±0.27) and FTSP (77.0±0.10) were lowest”
t0“sweet potato”
Claim · model-written summary
Fresh Hawassi-83 stem-petiole and fresh Tula leaf had the highest digestibility.
- Taxon
- sweet potato
Ipomoea batatast0 - Outcome
- FHSP (84.3±0.59) and FTL (84.3±0.04)e0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“that of FHSP (84.3±0.59) and FTL (84.3±0.04) highest”
t0“sweet potato”
Claim · model-written summary
Both varieties produced best under maize-haricot bean intercropping.
- Taxon
- sweet potato
Ipomoea batatast0 - Treatment
- intercropped with maize-haricot beane0
- Outcome
- vinee0
- Direction
- best producede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Both Hawassi-83 and Tula vine were best produced when intercropped with maize-haricot bean”
t0“sweet potato”
Claim · model-written summary
Hawassi-83 was more profitable and preferred than Tula.
- Taxon
- sweet potato
Ipomoea batatast0 - Material
- Hawassi-83e0
- Outcome
- profitable and preferred by respondentse0
- Direction
- moree0
- Comparator
- Tulae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Hawassi-83 was more profitable and preferred by respondents than Tula”
t0“sweet potato”
The same questions in other papers
intercropping · yield · Ipomoea batatas (sweet potato)Results differ
12 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
20 papers more in this group
See all 24 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.