Home / Botany / Aetiology of the fungal rot of cucumber fruit (cucumis sativus l.) and the efficacy of its control with phytochemicals from crude extracts of two plants.

Aetiology of the fungal rot of cucumber fruit (cucumis sativus l.) and the efficacy of its control with phytochemicals from crude extracts of two plants.

 

Table Of Contents


Chapter ONE

1.1 Introduction
1.2 Background of Study
1.3 Problem Statement
1.4 Objective of Study
1.5 Limitation of Study
1.6 Scope of Study
1.7 Significance of Study
1.8 Structure of the Research
1.9 Definition of Terms

Chapter TWO

2.1 Overview of Fungal Rot in Cucumber Fruit
2.2 Causes and Symptoms of Fungal Rot
2.3 Importance of Controlling Fungal Rot in Cucumber
2.4 Phytochemicals and Their Role in Disease Control
2.5 Plant Extracts as Potential Antifungal Agents
2.6 Previous Studies on Phytochemical Efficacy
2.7 Mechanisms of Action of Phytochemicals
2.8 Challenges in Implementing Phytochemical Control
2.9 Comparative Analysis of Plant Extract Efficacy
2.10 Future Research Directions

Chapter THREE

3.1 Research Design and Methodology
3.2 Selection of Plant Materials
3.3 Extraction and Isolation of Phytochemicals
3.4 Antifungal Assays and Experimental Setup
3.5 Data Collection and Analysis Methods
3.6 Statistical Tools for Data Interpretation
3.7 Ethical Considerations in Research
3.8 Quality Control Measures

Chapter FOUR

4.1 Overview of Research Findings
4.2 Efficacy of Plant Extracts on Fungal Rot Control
4.3 Comparison of Phytochemical Effectiveness
4.4 Factors Influencing Phytochemical Activity
4.5 Synergistic Effects of Plant Combinations
4.6 Practical Implications of Research Findings
4.7 Recommendations for Field Application
4.8 Areas for Further Investigation

Chapter FIVE

5.1 Summary of Research Findings
5.2 Conclusions Drawn from the Study
5.3 Contributions to Existing Knowledge
5.4 Practical Applications and Recommendations
5.5 Limitations of the Study
5.6 Suggestions for Future Research
5.7 Conclusion and Final Remarks

Thesis Abstract

The aetiology of the fungal rot of cucumber fruit (Cucumis sativus L.) in Enugu State was investigated. Five fungal pathogens were isolated from diseased cucumber fruits. They were identified as Fusarium oxysporum Schlecht, Aspergillus niger Van Tiegh, Rhizopus stolonifer Ehrenb. ex.Fr, Geotrichum candidum Link and Mucor micheli ex Staint – Amans. The pathogenicity tests proved them as the causal agents of the rot. The effects of ethanolic extracts of Chromolaena odorata and Moringa oleifera and benlate solution on the isolates wegre also determined. The ethanolic extracts of the test plants inhibited mycelial growth of the pathogens in vitro as well as in vivo. The inhibitory effects of the extracts increased with increase in concentration. All concentrations of 20 mg/ml to 100 mg/ml reduced the mycelial growth of the pathogens to some significant (P > 0.05) level. Benlate solution also reduced the mycelial growth of the pathogens. Phytochemical analysis of C. odorata revealed the presence of tannins, saponins, phenols, flavonoids, terpenoids, glycosides and alkaloids while M. oleifera contained all the phytochemicals except alkaloids. The presence of these active ingredients in the extracts may have contributed to their inhibitory properties. These findings suggest that plant extracts could serve as potential sources of bio-fungicides.

Thesis Overview

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