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Title
DEDICATION
DECLARATION
CERTIFICATE
Preface
ACKNOWLEDGEMENT
CONTENTS
List of tables
List of figures
List of plates
ABBREVIATIONS
1 Introduction
1.1. Coconut growing areas of India
2 Materials and methods
2.1. Map of Kerala state showing the study locations
2.1. Ecotypes selected under the study
2.1 Source of the material
2.2. Share of area and production of coconut in selected districts of Kerala
2.3. Productivity of coconut in selected districts of Kerala
2.1.1 Agro-meteorological variables
2.4. Thiruvampady panchayat in Kozhikode district
2.5. Chazhoor panchayat in Trichur district
2.6. Chemparakky and Neriamangalam in Ernakulam district
2.7. Pathiyoor panchayat in Alleppey district
2.8. Thazhava panchayat in Quilon district
2.2. Average rainfall in mm in the study areas
2.1.2 Experimental stages
2.3. Schedule of sampling
2.1.3 Sampling
2.2 Physiological parameters
2.2.1 Growth and dry matter production
2.3 Yield and yield attributes
2.4 Harvest index
2.5 Bio-chemical parameters
2.5.1 Total sugar
2.5.2 Reducing sugars
2.5.3 Potassium content
2.5.4 Total free amino acids
2.5.5 Leaf polyphenol content
2.5.6 Oil percentage
2.5.7 Acid value and free fatty acid (FFA)
3 Obsevations
3.1 General characteristic of coconut ecotypes
3.2 Morphological characteristics
3.2.1 Height
3.1. Morphological Characteristics of coconut ecotypes selected under the study
3.2.2 Leaf characters
a) Leaf scars
3.2. General characteristics of coconut ecotypes - mean of three years (1999-2001)
b) Number of leaves
c) Leaf length
d) Rachis Length
3.3. General characteristics of coconut ecotypes - mean of three years and ten palms each
e) Leaflets leaf
f) Leaf area leaf
3.4. Summary Anova of the morphological characteristics of Kuttiyadi Tall and West Coast Tall 1
3.5. Summary Anova of the morphological characteristics of King Coconut and West Coast Tall 2
3.6. Summary Anova of the morphological characteristics of Elite Tall and West Coast Tall 3
3.7. Summary Anova of the morphological characteristics of Chowghat Green Dwarf and West Coast Tall 3
3.8 Summary Anova of the morphological characteristics of Jappanan and West Coast Tall 4
3.9. Summary Anova of the morphological characteristics of Komadan and West Coast Tall 4
3.3 Physiological characteristics
3.3.1 Dry matter production
a) Stem
3.10. Stem dry matter production
b) Leaf
3.11. Leaf Area (LA) and Leaf Dry Matter Production (LDM) palm -t year-1
3.3.2 Yield and yield components
a) Yield
3.12. Yield and yield components palm- Year 1 mean of ten palms for three years
b) Yield components
3.4 Dry matter production among the genotypes
a) Vegetative Dry Matter (VDM)
3.13. Vegetative Dry Matter Production (VDM) palm year
b) Reproductory Dry Matter (RDM)
3.14. Reproductory Dry Matter (RDM) Production palm year
3.15. Fruit Analysis Data of Ecotypes and WCT in Kerala
3.16. Correlation coefficients among nut characters
3.17 Nut component analysis (d.wt.nut-1) of ecotypes
c) Total Dry Matter (TDM) Production palm-1 year-1
3.18 Total Dry Matter Production (TDM) palm-1 year-1
d) Total Nut Production
e) Total Copra Production
3.19. Total Copra Production
f) Total Nut Dry Weight palm-1 year-1
3.20. Total Nut Dry Weight
3.5 Partitioning of nut dry weight towards its components
3.21. Partitioning of Nut Dry Matter towards its components
3.6 Harvest index (HI)
3.22. Harvest Index (HI) Based on the Nut Weight
3.23. Harvest Index Based on the Copra Weight (HI)
3.24. Dry matter production palm-1 year-1 and HI in the coconut ecotypes
3.7 Oil content
3.25. Oil content in the copra of the identified samples
3.26. Total Oil Output
3.8 Biochemical characteristics
Acid value and free fatty acid of coconut oil
3.27. Acid value of the copra of the identified ecotypes
3.28. Polyphenol content
3.9 Leaf Polyphenol
3.29. Analysis of tender coconut water
3.10 Tender nut water analysis
3.30. Analysis of tender nut water - Summary - ANOVA (MSS)
3.31. Quantity of tender coconut water tender nut-1
3.32. Percentage of Disease Incidence
3.11 Percentage of disease incidence (DI)
3.1. Vegetative Dry Matter production palm-1 year-1
3.2 Reproductory Dry Matter production palm-1 year-1
3.3. Nut characteristics - Kuttiyadi vs. WCT 1
3.4. Nut characteristics - King Coconut vs. WCT 2
3.5. Nut characteristics - Elite Tall vs. WCT 3
3.6. Nut characteristics - CGD vs. WCT 3
3.7. Nut characteristics - Jappanan vs. WCT 4
3.8. Nut characteristics - Komadan vs. WCT 4
3.9. Fruit analysis data of ecotypes in Kerala
3.10. Total nut dry weight
3.11. Total Dry Matter production (TDM) palm-1 year-1
3.12. Harvest index in respect of nut weight and oil output
3.13. Oil content of ecotypes
3.14. Percentage of disease incidence
3.1. Kuttiyadi Tall
3.2. West Coast Tall 1 (Thiruvampady)
3.3. King Coconut
3.4. West Coast Tall 2
3.5. Elite Tall
3.6. Chowghat Green Dwarf
3.7. West Coast Tall 3 (Neriamangalam)
3.8. Jappanan
3.9. West Coast Tall (Evoor)
3.10. Komadan
4 Discussion
4.1 General characteristics
4.2 Dry matter production
4.3 Relationship between dry matter production and photosynthetic characteristics
4.4 Tender Coconut water
4.5 Coconut oil percentage
4.6 Disease incidence
5 Summary and conclusion
5.1. Ranking of different parameters of the ecotypes
5.2. Rating of ecotypes based on different parameters
References
Annexures