Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa

Maize (Zea mays L.) is an important staple food crop in sub-Saharan Africa (SSA) and contributes significantly to food security. Due to Striga, maize yield loss is estimated between 20 and 80% forcing some farmers to abandon their land therefore threatening food security. Many strategies have been a...

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Main Authors: Mutsvanga, Simbarashe, Gasura, Edmore, Setimela, Peter S., Nyakurwa, Cacious S., Mabasa, Stanford
Format: Journal Article
Language:Inglés
Published: BioMed Central 2022
Subjects:
Online Access:https://hdl.handle.net/10568/141982
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author Mutsvanga, Simbarashe
Gasura, Edmore
Setimela, Peter S.
Nyakurwa, Cacious S.
Mabasa, Stanford
author_browse Gasura, Edmore
Mabasa, Stanford
Mutsvanga, Simbarashe
Nyakurwa, Cacious S.
Setimela, Peter S.
author_facet Mutsvanga, Simbarashe
Gasura, Edmore
Setimela, Peter S.
Nyakurwa, Cacious S.
Mabasa, Stanford
author_sort Mutsvanga, Simbarashe
collection Repository of Agricultural Research Outputs (CGSpace)
description Maize (Zea mays L.) is an important staple food crop in sub-Saharan Africa (SSA) and contributes significantly to food security. Due to Striga, maize yield loss is estimated between 20 and 80% forcing some farmers to abandon their land therefore threatening food security. Many strategies have been applied to combat Striga infested fields to improve maize yields but alternative feasible approaches are still required. This study aimed at determining effects of phosphorus (P) and maize variety on Striga asiatica germination and attachment. A factorial experiment of eight P levels (0, 10, 20, 30, 40, 50, 60 and 70 kg ha−1), six maize varieties and Striga (inoculated and non-inoculated) in a 4 × 24 α-lattice design with three replications was set in a glasshouse at the University of Zimbabwe. A similar experiment was set under laboratory conditions using agar gel plates to determine S. asiatica germination using a complete randomized design with three replications. Adding P (at 40 kg ha−1) to soil infected with Striga, significantly (p < 0.05) reduced Striga counts and haustorial root attachments in all varieties with CV4 and R201 supporting lowest numbers. P also significantly (p < 0.05) improved plant height, chlorophyll content, leaf, cob, total biomasses and grain yield across all maize genotypes. Cultivar CV4 produced the highest grain yield under Striga attack. Furthermore, cultivars CV4 and CV1 had significantly (p < 0.05) lowest Striga seed maximum germination distance and percentages at zero P. Application of P reduced Striga germination, attachments and emergence in all varieties and increased tolerance of maize varieties.
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spelling CGSpace1419822025-12-08T10:29:22Z Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa Mutsvanga, Simbarashe Gasura, Edmore Setimela, Peter S. Nyakurwa, Cacious S. Mabasa, Stanford striga asiatica maize nutritive value food security phosphorus Maize (Zea mays L.) is an important staple food crop in sub-Saharan Africa (SSA) and contributes significantly to food security. Due to Striga, maize yield loss is estimated between 20 and 80% forcing some farmers to abandon their land therefore threatening food security. Many strategies have been applied to combat Striga infested fields to improve maize yields but alternative feasible approaches are still required. This study aimed at determining effects of phosphorus (P) and maize variety on Striga asiatica germination and attachment. A factorial experiment of eight P levels (0, 10, 20, 30, 40, 50, 60 and 70 kg ha−1), six maize varieties and Striga (inoculated and non-inoculated) in a 4 × 24 α-lattice design with three replications was set in a glasshouse at the University of Zimbabwe. A similar experiment was set under laboratory conditions using agar gel plates to determine S. asiatica germination using a complete randomized design with three replications. Adding P (at 40 kg ha−1) to soil infected with Striga, significantly (p < 0.05) reduced Striga counts and haustorial root attachments in all varieties with CV4 and R201 supporting lowest numbers. P also significantly (p < 0.05) improved plant height, chlorophyll content, leaf, cob, total biomasses and grain yield across all maize genotypes. Cultivar CV4 produced the highest grain yield under Striga attack. Furthermore, cultivars CV4 and CV1 had significantly (p < 0.05) lowest Striga seed maximum germination distance and percentages at zero P. Application of P reduced Striga germination, attachments and emergence in all varieties and increased tolerance of maize varieties. 2022-12 2024-05-21T15:36:08Z 2024-05-21T15:36:08Z Journal Article https://hdl.handle.net/10568/141982 en Open Access application/pdf BioMed Central Mutsvanga, S., Gasura, E., Setimela, P. S., Nyakurwa, C. S., & Mabasa, S. (2022). Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa. CABI Agriculture And Bioscience, 3, 47. https://doi.org/10.1186/s43170-022-00108-4
spellingShingle striga asiatica
maize
nutritive value
food security
phosphorus
Mutsvanga, Simbarashe
Gasura, Edmore
Setimela, Peter S.
Nyakurwa, Cacious S.
Mabasa, Stanford
Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa
title Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa
title_full Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa
title_fullStr Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa
title_full_unstemmed Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa
title_short Nutritional management and maize variety combination effectively control Striga asiatica in southern Africa
title_sort nutritional management and maize variety combination effectively control striga asiatica in southern africa
topic striga asiatica
maize
nutritive value
food security
phosphorus
url https://hdl.handle.net/10568/141982
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