Responses of maize, sorghum and millet host plants infestation by Striga hemonthica

Twelve samples of Striga hermonthica seed were collected from four host crops [millet (4), sorghum (4), a sorghum/millet intercrop (3) and maize (1)] from all the main areas of S. hermonthica infestation in Nigeria and were tested on eight genotypes of three test crops [maize (4), sorghum (2) and mi...

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Main Authors: Kim, S.K., Akintunde, A., Walker, P.
Format: Journal Article
Language:Inglés
Published: Elsevier 1994
Subjects:
Online Access:https://hdl.handle.net/10568/100940
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author Kim, S.K.
Akintunde, A.
Walker, P.
author_browse Akintunde, A.
Kim, S.K.
Walker, P.
author_facet Kim, S.K.
Akintunde, A.
Walker, P.
author_sort Kim, S.K.
collection Repository of Agricultural Research Outputs (CGSpace)
description Twelve samples of Striga hermonthica seed were collected from four host crops [millet (4), sorghum (4), a sorghum/millet intercrop (3) and maize (1)] from all the main areas of S. hermonthica infestation in Nigeria and were tested on eight genotypes of three test crops [maize (4), sorghum (2) and millet (2)] in two screenhouse trials. Plants of each test genotype were sown in pots and heavily infested with S. hermonthica. Emergence count of the parasite, test crop damage rating (1–9), and test crop plant height were measured at 9 weeks after planting. The effects of genotypes, samples and their interaction for all three traits measured were highly significant (p = 0.001). Of the 12 samples of S. hermonthica, all have high emergence on both maize and sorghum. Seven samples gave low emergence on millet genotypes and two none at all. Three of the four samples from millet sources gave higher parasite emergence on sorghum and maize than on millet. For Striga damage rating, millet had the lowest average scores, followed by maize and sorghum. The responses of maize genotypes to samples from millet and sorghum sources were significantly different. Millet genotypes also had different responses to the samples from millet sources. For plant height differences, samples from sorghum sources interacted significantly with test maize genotypes, and millet samples with sorghum genotypes. The results indicate that both intercrop and intracrop strains of S. hermonthica are present in Nigeria.
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spelling CGSpace1009402024-05-15T05:11:55Z Responses of maize, sorghum and millet host plants infestation by Striga hemonthica Kim, S.K. Akintunde, A. Walker, P. striga hermonthica genotypes maize sorghum Twelve samples of Striga hermonthica seed were collected from four host crops [millet (4), sorghum (4), a sorghum/millet intercrop (3) and maize (1)] from all the main areas of S. hermonthica infestation in Nigeria and were tested on eight genotypes of three test crops [maize (4), sorghum (2) and millet (2)] in two screenhouse trials. Plants of each test genotype were sown in pots and heavily infested with S. hermonthica. Emergence count of the parasite, test crop damage rating (1–9), and test crop plant height were measured at 9 weeks after planting. The effects of genotypes, samples and their interaction for all three traits measured were highly significant (p = 0.001). Of the 12 samples of S. hermonthica, all have high emergence on both maize and sorghum. Seven samples gave low emergence on millet genotypes and two none at all. Three of the four samples from millet sources gave higher parasite emergence on sorghum and maize than on millet. For Striga damage rating, millet had the lowest average scores, followed by maize and sorghum. The responses of maize genotypes to samples from millet and sorghum sources were significantly different. Millet genotypes also had different responses to the samples from millet sources. For plant height differences, samples from sorghum sources interacted significantly with test maize genotypes, and millet samples with sorghum genotypes. The results indicate that both intercrop and intracrop strains of S. hermonthica are present in Nigeria. 1994-12 2019-04-24T12:29:37Z 2019-04-24T12:29:37Z Journal Article https://hdl.handle.net/10568/100940 en Limited Access Elsevier Kim, S.K., Akintunde, A. & Walker, P. (1994). Responses of maize, sorghum and millet host plants infestation by Striga hemonthica. Crop Protection, 13(8), 582-590.
spellingShingle striga hermonthica
genotypes
maize
sorghum
Kim, S.K.
Akintunde, A.
Walker, P.
Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
title Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
title_full Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
title_fullStr Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
title_full_unstemmed Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
title_short Responses of maize, sorghum and millet host plants infestation by Striga hemonthica
title_sort responses of maize sorghum and millet host plants infestation by striga hemonthica
topic striga hermonthica
genotypes
maize
sorghum
url https://hdl.handle.net/10568/100940
work_keys_str_mv AT kimsk responsesofmaizesorghumandmillethostplantsinfestationbystrigahemonthica
AT akintundea responsesofmaizesorghumandmillethostplantsinfestationbystrigahemonthica
AT walkerp responsesofmaizesorghumandmillethostplantsinfestationbystrigahemonthica