VARIABILITY AND CORRELATION STUDIES IN BASIL, SCENT LEAF (OCIMUM GRATISSIMUM)
Table Of Contents
Chapter ONE
1.1 Introduction1.2 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 Basil and Scent Leaf2.2 Historical Perspective of Basil and Scent Leaf
2.3 Nutritional Value of Basil and Scent Leaf
2.4 Health Benefits of Basil and Scent Leaf
2.5 Cultivation Practices of Basil and Scent Leaf
2.6 Variability in Basil and Scent Leaf Species
2.7 Correlation Studies in Basil and Scent Leaf
2.8 Economic Importance of Basil and Scent Leaf
2.9 Consumer Preferences for Basil and Scent Leaf
2.10 Future Trends in Basil and Scent Leaf Production
Chapter THREE
3.1 Research Design and Methodology3.2 Sampling Techniques
3.3 Data Collection Methods
3.4 Data Analysis Procedures
3.5 Research Instruments Used
3.6 Ethical Considerations
3.7 Reliability and Validity
3.8 Limitations of the Research Methodology
Chapter FOUR
4.1 Analysis of Variability in Basil and Scent Leaf4.2 Correlation Studies Results
4.3 Comparison of Different Basil and Scent Leaf Species
4.4 Factors Affecting Variability in Basil and Scent Leaf
4.5 Implications of Variability and Correlation Studies
4.6 Interpretation of Findings
4.7 Discussion on Economic Significance
4.8 Recommendations for Future Research
Chapter FIVE
5.1 Summary of Findings5.2 Conclusion
5.3 Implications for Agriculture
5.4 Practical Applications
5.5 Contributions to Existing Knowledge
5.6 Suggestions for Further Studies
5.7 Final Remarks
Thesis Abstract
Ocimum gratissimum is an herbaceous perennial shrub notably found in the tropics and sub tropical countries. It is an important part of the traditional system of medicine in many countries which is use in the treatment of various ailments. Ocimums have a variety of compounds which are of medicinal and nutritional importance; they are use as spices, food or medicine. The aim of this study is to evaluate the morphological diversity and character correlation among ocimum gratissimum genotypes. The study was carried out in the Teaching and Research Farm of faculty of Agriculture University of Benin, Benin city Edo state Nigeria in 2013. It involved the collection of the ocimum genotypes from 23 homes and gardens in Benin metropolis. The experiment was laid out as a randomized complete block design with three replicates. The morphological character studied include ; plant height, number of branches, number of leaves, leave length, leave breadth, leave area , fresh and dry leave yields. However there was little or no variability in the morphological characters among the genotypes (p≥0.01).Also there is a strong and positive correlation among most of the characters.
Thesis Overview
INTRODUCTION
In Nigeria and many other Africa countries, indigenous people use many plants as food and medicine. Such plants have a variety of compounds which are of medicinal and nutritional importance; they are use as spices, food or medicine. (Edeoga and Eriata 2001; Edeoga et al. 2003; Osuagwu et al).
The genus ocimum (family Lamiaceae), commonly and collectively called as “Basil” is a diverse and rich source of aromatic essential oils attributed for their pharmaceutical, culinary and aromatic properties .(Pushpagandan and Bradu 1995). Many species of the genus Ocimum, namely; Ocimum americanum, Ocimum basilicum, Ocimum canun, Ocimum gratissimum,Ocimum sactum and Ocimum suave have been reported for various medicinal uses.( Burkil, 1985; Oliver, 1980; Sofowora, 1993; and Adjanahoun et al. 1991).
The economically important parts of ocimums are their leaves and tender shoots which on steam distillation yield pleasant smelling volatile essential oil having phenylpropanoids and terpenoids as their major active compounds. (Pushpagandan and Bradu , 1995).
Ocimum gratissimum is a herbaceous perennial shrub notably found in Tropical and sub-tropical countries including Nigeria where it is called clove basil, sweet basil, tea-bush scent leaf or fever plant. It is also known with different local names in Nigeria; Nupe:Tan-motsungi-wawagi; Ebira: Ireru; Hausa:Daidoya ta gida ; Yoruba: Efinrin; Ibo:Nchanwu. (Grill ,1992 ; Mann, et al., 2003 and Burkill, 1998).Several ethnobotanical surveys show that Ocimum gratissimum was among the plants reported in Nigeria communities to be use traditionally in the treatment of bacterial infections such as; Diarrhea, dysentery and other gastro-intestinal infections ; upper respiratory tract infection associated with coughing, pneumonia, asthma, and bronchitis; urinogenital infection, skin infections (eczema, dermatitis ,scabies, measles), ophthalmic and diabetes and veterinary problems (Adjonohom et al., 1991; Prabhu et al, 2009) and antihelmintis. (Pessoa et al. 2002).
Information on genetic variability in a population is a pre-requisite for selection of superior genotype. (Fiyaz et al., 2011). The application of genetic variations can be utilize the in future improvement programs. There is presently a dearth of information on morphological diversity and character correlation of ocimum gratisssimum. Thus the objective of this present study is to evaluate morphological diversity and character correlation among ocimum gratissimum genotypes.
1.3 Aim and Objective of the Study
The aim and objective of this study include the following
a. To evaluate morphological diversity and character correlation among ocimum gratissimum genotypes.
b. To determine the alternative and complimentary medicinal uses of ocimum gratissimum
c. To determine the nutrient and phytochemical composition of ocimum gratissimum
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