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 1

: Introduction 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 2

: Literature Review 2.1 Overview of Fungal Rot of Cucumber Fruit
2.2 Causes and Symptoms of Fungal Rot
2.3 Importance of Cucumber Fruit in Agriculture
2.4 Phytochemicals and Their Role in Disease Control
2.5 Previous Studies on Phytochemicals for Disease Control
2.6 Plants with Potential Phytochemicals for Disease Control
2.7 Efficacy of Phytochemicals in Controlling Fungal Rot
2.8 Challenges in Implementing Phytochemical-Based Control
2.9 Future Research Directions in Phytochemical Control
2.10 Summary of Literature Review

Chapter 3

: Research Methodology 3.1 Research Design
3.2 Sampling Techniques
3.3 Data Collection Methods
3.4 Data Analysis Procedures
3.5 Experimental Setup
3.6 Plant Extract Preparation
3.7 Disease Inoculation Procedures
3.8 Statistical Analysis Plan

Chapter 4

: Discussion of Findings 4.1 Analysis of Phytochemical Efficacy
4.2 Comparison of Plant Extracts in Disease Control
4.3 Impact of Phytochemical Concentrations
4.4 Interaction Effects of Phytochemicals
4.5 Discussion on Disease Resistance Mechanisms
4.6 Practical Implications of Research Findings
4.7 Recommendations for Agricultural Practices
4.8 Future Research Directions

Chapter 5

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

Project 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.

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