Abstract
The response of white and red cultivar (cv) cocoyam (Xanthosoma sagittifolium (L.) Schott) minituber seeds to different rates of poultry manure (PM) and NPK (20:10:10) fertilizer was studied under field conditions in the 2017 cropping season on an experimental farm at Ngog Bibega, Mbankomo Sub-division, (outskirsts of Yaounde) Centre region, Cameroon. Treatment combinations comprising of three rates each of poultry manure (0, 20 and 30t ha -1 ) and NPK fertilizer (0, 120 and 150 kg ha -1 ) were factorized and fitted into a randomized complete block design with three replicates. Physico-chemical analysis of all treatment plots revealed clay loam textures and poultry manure treatment plots significantly (P<0.05) increased soil pH, organic content, total carbon and cation exchange capacity while NPK treatments significantly (p<0.05) increased available phosphorus compared to the control treatments. Poultry manure(30t ha -1 ) treatments significantly (P<0.05) enhanced plant height, leaf number and leaf area in both cultivars after 6 months of growth as compared to all other treatments. Under the same treatments of poultry manure (30t ha -1 ) the white cultivar plants recorded the most significant mean yield parameters after 9 months of growth. The average tuber number per plant (8), tuber weight (250g), tuber length (14cm) and tuber girth (18.5cm) compared to the red cultivar average yield parameters: tuber number per plant (5.7), tuber weight (124.7g), tuber length (8cm) and tuber girth (14.5cm). Biochemically the application of various treatments of poultry manure and NPK fertilizers significantly (P<0.05) influenced the changes observed in the secondary metabolites studied. Two months after planting, NPK (150kg ha -1 ) treatments showed the most significant phenolic content (1.22±0.13mg eq catechin.g -1 FW) and flavonoid content (1.08±0.16mg g -1 FW) in white cv cocoyam plants. After 6 months of growth, the poultry manure (30t ha -1 ) treatments recorded the most significant protein content (5.04±0.38mg eq BSA.g -1 FW) and peroxidase activity (4.89±1.36 UE min -1 ) in white cv cocoyam plants while red cv cocoyam plants had the most significant glucanase activity (9.33±1.17 mg eq glucose g -1 FW). NPK (150kg ha -1 ) treatments in white cv cocoyam plants recorded the most significant polyphenol oxidase activity (4.99±0.10 in D330 nm -1 min -1 UE -1 g -1 FW) 6 months after planting. Keywords: Xanthosoma sagittifolium L. Schott; Minitubers; cation exchange capacity; Poultry manure; NPK fertilizers; yield parameters and secondary metabolites. DOI : 10.7176/JBAH/9-20-05 Publication date :October 31 st 2019
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Claims 10
Claim · model-written summary
Poultry manure increased soil pH, organic content, total carbon, and cation exchange capacity.
- Taxon
- Xanthosoma sagittifolium (L.) Schott
Xanthosoma sagittifoliumt0 - Treatment
- poultry manuree0
- Outcome
- soil pH, organic content, total carbon and cation exchange capacitye0
- Direction
- increasede0
- Comparator
- control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“poultry manure treatment plots significantly (P<0.05) increased soil pH, organic content, total carbon and cation exchange capacity while NPK treatments significantly (p<0.05) increased available phosphorus compared to the control treatments”
t0“Xanthosoma sagittifolium (L.) Schott”
Claim · model-written summary
NPK fertilizer increased available soil phosphorus relative to controls.
- Taxon
- Xanthosoma sagittifolium (L.) SchottXanthosoma sagittifoliumt0
- Treatment
- NPK treatmentse0
- Outcome
- available phosphoruse0
- Direction
- increasede0
- Comparator
- control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK treatments significantly (p<0.05) increased available phosphorus compared to the control treatments”
t0“Xanthosoma sagittifolium (L.) Schott”
Claim · model-written summary
Poultry manure at 30t ha -1 enhanced height, leaf number, and leaf area in both cultivars after six months.
- Taxon
- Xanthosoma sagittifolium (L.) SchottXanthosoma sagittifoliumt0
- Treatment
- Poultry manure(30t ha -1 )e0
- Outcome
- plant height, leaf number and leaf areae0
- Direction
- enhancede0
- Qualifier
- both cultivars after 6 months of growthe0
- Comparator
- all other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Poultry manure(30t ha -1 ) treatments significantly (P<0.05) enhanced plant height, leaf number and leaf area in both cultivars after 6 months of growth as compared to all other treatments”
t0“Xanthosoma sagittifolium (L.) Schott”
Claim · model-written summary
Under 30t ha -1 poultry manure, white cultivar plants had higher yield parameters than red cultivar plants after nine months.
- Taxon
- Xanthosoma sagittifolium (L.) SchottXanthosoma sagittifoliumt0
- Material
- white cultivare0
- Treatment
- poultry manure (30t ha -1 )e0
- Outcome
- mean yield parameterse0
- Qualifier
- after 9 months of growthe0
- Comparator
- red cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the same treatments of poultry manure (30t ha -1 ) the white cultivar plants recorded the most significant mean yield parameters after 9 months of growth. The average tuber number per plant (8), tuber weight (250g), tuber length (14cm) and tuber girth (18.5cm) compared to the red cultivar average yield parameters: tuber number per plant (5.7), tuber weight (124.7g), tuber length (8cm) and tuber girth (14.5cm).”
t0“Xanthosoma sagittifolium (L.) Schott”
Claim · model-written summary
NPK at 150kg ha -1 gave white cocoyam phenolic content of 1.22±0.13mg eq catechin.g -1 FW after two months.
- Taxon
- cocoyam
_Colocasia_esculenta_-_Les_Martels%2C_Giroussens_Tarn.jpg?width=60)
Colocasia esculentae0 - Material
- white cve0
- Treatment
- NPK (150kg ha -1 )e0
- Outcome
- phenolic contente0
- Direction
- most significante0
- Value
- 1.22±0.13mg eq catechin.g -1 FWe0
- Qualifier
- Two months after plantinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Colocasia_esculenta_-_Les_Martels%2C_Giroussens_Tarn.jpg?width=500)
Verbatim
e0“Two months after planting, NPK (150kg ha -1 ) treatments showed the most significant phenolic content (1.22±0.13mg eq catechin.g -1 FW) and flavonoid content (1.08±0.16mg g -1 FW) in white cv cocoyam plants.”
Claim · model-written summary
NPK at 150kg ha -1 gave white cocoyam flavonoid content of 1.08±0.16mg g -1 FW after two months.
- Taxon
- cocoyamColocasia esculentae0
- Material
- white cve0
- Treatment
- NPK (150kg ha -1 )e0
- Outcome
- flavonoid contente0
- Direction
- most significante0
- Value
- 1.08±0.16mg g -1 FWe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two months after planting, NPK (150kg ha -1 ) treatments showed the most significant phenolic content (1.22±0.13mg eq catechin.g -1 FW) and flavonoid content (1.08±0.16mg g -1 FW) in white cv cocoyam plants.”
Claim · model-written summary
Poultry manure at 30t ha -1 gave white cocoyam protein content of 5.04±0.38mg eq BSA.g -1 FW after six months.
- Taxon
- cocoyamColocasia esculentae0
- Material
- white cve0
- Treatment
- poultry manure (30t ha -1 )e0
- Outcome
- protein contente0
- Direction
- most significante0
- Value
- 5.04±0.38mg eq BSA.g -1 FWe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 6 months of growth, the poultry manure (30t ha -1 ) treatments recorded the most significant protein content (5.04±0.38mg eq BSA.g -1 FW) and peroxidase activity (4.89±1.36 UE min -1 ) in white cv cocoyam plants”
Claim · model-written summary
Poultry manure at 30t ha -1 gave white cocoyam peroxidase activity of 4.89±1.36 UE min -1 after six months.
- Taxon
- cocoyamColocasia esculentae0
- Material
- white cve0
- Treatment
- poultry manure (30t ha -1 )e0
- Outcome
- peroxidase activitye0
- Direction
- most significante0
- Value
- 4.89±1.36 UE min -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 6 months of growth, the poultry manure (30t ha -1 ) treatments recorded the most significant protein content (5.04±0.38mg eq BSA.g -1 FW) and peroxidase activity (4.89±1.36 UE min -1 ) in white cv cocoyam plants”
Claim · model-written summary
Red cocoyam plants had glucanase activity of 9.33±1.17 mg eq glucose g -1 FW after six months.
- Taxon
- cocoyamColocasia esculentae0
- Material
- red cve0
- Outcome
- glucanase activitye0
- Direction
- most significante0
- Value
- 9.33±1.17 mg eq glucose g -1 FWe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“red cv cocoyam plants had the most significant glucanase activity (9.33±1.17 mg eq glucose g -1 FW)”
Claim · model-written summary
NPK at 150kg ha -1 gave white cocoyam polyphenol oxidase activity of 4.99±0.10 in D330 nm -1 min -1 UE -1 g -1 FW after six months.
- Taxon
- cocoyamColocasia esculentae0
- Material
- white cve0
- Treatment
- NPK (150kg ha -1 )e0
- Outcome
- polyphenol oxidase activitye0
- Direction
- most significante0
- Value
- 4.99±0.10 in D330 nm -1 min -1 UE -1 g -1 FWe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK (150kg ha -1 ) treatments in white cv cocoyam plants recorded the most significant polyphenol oxidase activity (4.99±0.10 in D330 nm -1 min -1 UE -1 g -1 FW) 6 months after planting.”
The same questions in other papers
fertilization · quality: protein · Colocasia esculenta (taro)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.