Effect of variety and apron star on incidence and severity of cercospora leaf spot disease of cowpea (Vigna unguiculata) in Sokoto, North-Western Nigeria

AS, Muhammad; Ay, Sajo; Bello, I; Bs, Haliru; Ha, Bagudo; Iu, Mohammed; Sanda, Ahmadu Umaru

doi:10.15406/jabb.2018.05.00110

JABB

2018

DOI: 10.15406/jabb.2018.05.00110

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Effect of variety and apron star on incidence and severity of cercospora leaf spot disease of cowpea (Vigna unguiculata) in Sokoto, North-Western Nigeria

Muhammad AS

Sajo Ay

I Bello

et al.

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Nutritional Qualities Evaluation of Ten Accessions of Cowpea (Vigna unguiculata L. Walp) Infected by Cercospora Leaf Spot Disease

Amos,

Afolabi,

Akinbode

2022

Trends Agric. Sci

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Background and Objective: Despite the importance of cowpea (Vigna unguiculata L. Walp) in Nigeria, its production in commercial quantity is constrained majorly by fungal diseases, especially Cercospora Leaf Spot (CLS). Therefore, a study was conducted to evaluate the nutritional qualities of ten cowpea accessions infected by CLS planted in the screen house Materials and Methods: The experiment was laid out in Completely Randomized Design with three replications. Data collected were on stomatal conductance, leaf chlorophyll content, disease evaluation and proximate analysis. The data collected were subjected to mixed model Analysis of Variance (ANOVA). Means of significant treatments were separated using Fisher Protected Least Significant Difference (LSD) at p<0.05. Results: The effect of CLS on stomatal conductance, leaf chlorophyll content, disease evaluation and proximate analysis of the cowpea accessions differed significantly with TVU-9182 having the highest value of ash, crude fibre, moisture and fat at 3.92, 3.13, 15.67 and 4.48%, respectively with the value of carbohydrate at 51.99%. The TVU-9175 had the lowest value of ash, protein, moisture, crude fibre and fat at 2.17, 16.55, 8.67, 1.73 and 2.48%, respectively with the highest value of carbohydrate at 68.41%. The ten accessions were significantly susceptible (p<0.5) to CLS with high susceptibility at 10 Weeks After Planting (WAP). Conclusion: The results showed that TVU-9174 and TVU-9182 had better nutritional qualities after CLS infection than the other infected cowpea accessions. Hence, TVU-9174 and TVU-9182 could be used as breeding materials based on the nutritional contents after CLS infection.

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Nutritional Qualities Evaluation of Ten Accessions of Cowpea (Vigna unguiculata L. Walp) Infected by Cercospora Leaf Spot Disease

Amos,

Afolabi,

Akinbode

2022

Trends Agric. Sci

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Cowpea (Vigna unguiculata (L.) Walp) Accessions Evaluation for Cercospora Leaf Spot Resistance Under Changing Weather

Edet¹,

Afolabi²,

Akinbode³

2023

Trends Agric. Sci

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Background and Objective: Cowpea (Vigna unguiculata L. Walp) is considered to be an important food crop in Nigeria. However, its production in commercial quantity is constrained majorly by 64% fungal diseases especially Cercospora Leaf Spot Disease (CLSD). The objective of this research was to evaluate sixty-two cowpea accessions for resistance to Cercospora Leaf Spot Disease (CLSD) and determine their agronomic parameters to identify resistant accessions that could be used as breeding materials for improved cowpea germplasm. The study also aimed to assess the impact of weather conditions on disease incidence and severity. Materials and Methods: In line with this, a study was conducted to evaluate sixtytwo cowpea accessions for resistance to CLSD at the Research Farm, Institute of Agricultural Research and Training, Obafemi Awolowo University, Ibadan, the site is located at (Latitude 07°23'N, Longitude 03°51'E).The trial took place during the dry season (August to November) 2017 and the wet season (May to August) 2018. The cowpea accessions were laid-out in Randomized Complete Block Design with three replications. Data were collected on disease incidence and severity as well as agronomic parameters. Data collected were subjected to Analysis of Variance and means of significant treatments were separated using Duncan's Multiple Range Test at p<0.05. Results: The results indicated that due to emerging weather conditions, the disease incidence and severity were significantly (p<0.05) different for the two seasons and also for the accessions, the disease reaction in the dry season showed that 2 accessions (TVu-9202 and TVU-9276) were highly resistant, 31 were resistant, 23 were moderately resistant and 6 were moderately susceptible. However, in the wet season, 29 accessions were moderately resistant, 32 moderately susceptible and one (IFE BPC) was susceptible based on 0-5 adopted severity scale. Conclusion:Cercospora Leaf Spot (CLS) disease has serious implications on cowpea production and yield based on the prevalent weather condition and the inherent genetic trait. Hence, the observed resistant cowpea accessions found in this study can be further evaluated in different agroecological zones.

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Effect of variety and apron star on incidence and severity of cercospora leaf spot disease of cowpea (Vigna unguiculata) in Sokoto, North-Western Nigeria

Cited by 2 publications

References 3 publications

Nutritional Qualities Evaluation of Ten Accessions of Cowpea (Vigna unguiculata L. Walp) Infected by Cercospora Leaf Spot Disease

Nutritional Qualities Evaluation of Ten Accessions of Cowpea (Vigna unguiculata L. Walp) Infected by Cercospora Leaf Spot Disease

Cowpea (Vigna unguiculata (L.) Walp) Accessions Evaluation for Cercospora Leaf Spot Resistance Under Changing Weather

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