Table Of ContentGENETIC VARIABILITY IN MID-SEASON CAULIFLOWER
(Brassica oleracea var. botrytis L.)
M. Sc. (Hort.) Thesis
by
Mehnaz Ansari
DEPARTMENT OF VEGETABLE SCIENCE
COLLEGE OF AGRICULTURE
FACULTY OF AGRICULTURE
INDIRA GANDHI KRISHI VISHWAVIDYALAYA
RAIPUR (Chhattisgarh)
2017
GENETIC VARIABILITY IN MID-SEASON CAULIFLOWER
(Brassica oleracea var. botrytis L.)
Thesis
Submitted to the
Indira Gandhi Krishi Vishwavidyalaya, Raipur
by
Mehnaz Ansari
IN PARTIAL FULFILLMENT OF THE
REQUIREMENTS FOR THE
DEGREE OF
Master of Science
in
Horticulture
(Vegetable Science)
VVID NO. : 20151622620 ID NO. : 120115206
JULY, 2017
ACKNOWLEDGEMENT
First of all, my humble and devoted prostration to ALMIGHTY GOD with soulful
respect, I bow down my head to Him, who enlightens and leads me in right way, with his blessings
I reached at this stage.
I am glad to express my deep sense of heartly gratitude to my Hon’ble guide and Chairman
of my Advisory Committee Dr. Jitendra Trivedi, Astt. Prof. Department of Vegetable Science,
college of Agriculture, Raipur (Chhattisgarh). His unfailing encouragement, keen interest,
scholarly advice, I consider it a great privilege to work under his talented guidance and for the
unending benevolence bestowed of me and his patience instruction that has given me a great help
at every step during my thesis, which cannot be acknowledged in words.
I express my whole hearted sense of appreciation and gratitude for the members of my
advisory committee, Dr. Dhananjay Sharma, Scientist, Department of Vegetable Science for his
inspiring guidance, constructive criticism and timely advisement during the entire course of
investigation and preparation of manuscript and providing necessary infrastructure and resources
to accomplish my research work. I am very much thankful to him for picking me up as a student at
the critical stage of my M.Sc. and Dr. S.K.Nair, Scientist, Department of Genetics and Plant
Breeding, for his able guidance, encouragement, valuable suggestions, generosity and affection in
my research investigation
I am greatly thankful to Dr. R.R. Saxena, Associate Professor of Agriculture Statistics
and Social Science (L.), for their critical suggestion and regular encouragement during tenure of my
investigation.
I have immense pleasure in expressing my whole heart thanks to Dr. Jitendra Singh,
Professor and Head, Department of Vegetable Science, for providing all the facilities and help as
well as of his valuable suggestions.
I wish to record my sincere thanks to Dr. S. K. Patil, Hon’ble Vice Chancellor, Dr. O.P.
Kashyap, Dean, Dr. J. S. Urkurkar Director Research Services and Dr. S. S. Shaw, Director of
Instructions, Dr. M. P. Thakur, Director Extension Services, Dr. Madhav Pandey Librarian
IGKV, Raipur for their help both administrative and technical which facilitated my research
work. I feel honored to express my deep sense of gratitude to Dr. D.A. Sarnaik, Dr. Pravin
Sharma, Dr. Amit Dixit and other technical and non-technical staff members of the Department
of Vegetable Science, IGKV, Raipur for their help, affectionate encouragement and useful
suggestions during the tenure of this investigation.
I would like to thanks to the unrelenting support of non technical staff of my department
Anuradha mam, Sapna mam , komal bhaiya, Chetan bhaiya, for their help during this piece of
iii
TABLE OF CONTENTS
Chapters Particulars Page
ACKNOWLEDGEMENT iii
TABLE OF CONTENTS v
LIST OF TABLES viii
LIST OF FIGURES ix
LIST OF PLATES x
LIST OF ABBREVIATIONS xi
ABSTRACT xii
I INTRODUCTION 1
II REVIEW OF LITERATURE 4
2.1 Genetic variability 4
2.2 Correlation coefficients 10
2.3 Path Coefficient Analysis 1 3
III MATERIALS AND METHODS 16
3.1 Geographical situation 16
3.2 Agro-climatic condition 16
3.3 Soil of the experimental field 18
3.4 Experimental materials and design 1 8
3.5 Details of treatments 2 0
3.6 Nursery raising 2 1
3.7 Field preparation 2 1
3.8 ransplanting 21
3.9 Fertilizer application 21
3.10 Irrigation 22
3.11 Intercultural operations 22
3.12 Plant protection measures 22
3.13 Harvesting 22
3.14 Observations recorded 22
3.14.1 Growth characters 23
3.14.1.1 Number of leaves 23
3.14.1.2 Stalk length (cm) 23
3.14.1.3 Curd width (cm) 23
3.14.1.4 Curd length (cm) 23
3.14.1.5 Gross plant weight GPW (gm) 23
3.14.1.6 Marketable curd weight MCW (gm) 23
3.14.1.7 Net curd weight NCW (gm) 23
3.14.1.8 Marketable curd yield (kg) 23
3.14.1.9 Days to 50% curd formation 24
3.14.1.10 Days to maturity 24
3.14.1.11 Harvest Index (%) 24
3.14.1.12 Curd Index (cm2) 24
3.14.1.13 Leaf length and Leaf width (cm) 24
v
Chapters Particulars Page
3.14.1.14 Leaves attached to curd 24
3.14.1.15 Days to first harvest for earliness 24
3.14.1.16 Curd yield / plot (kg ) 24
3.14.1.17 Duration of crop (sowing to last 25
harvest)
3.14.1.18 Curd yield ( q/ha ) 25
3.14.2 Studies on quality characters of cauliflower 25
3.14.2.1 Plant growth habit 25
3.14.2.2 Leaf shape 25
3.14.2.3 Curd shape 25
3.14.2.4 Curd compactness 25
3.14.2.5 Curd colour 25
3.14.2.6 Disease incidence 25
3.14.2.7 Insect pest infestation 26
3.14.2.8 Physiological disorder 26
3.15 Statistical and biometrical analysis 26
3.15.1 Analysis of variance (ANOVA) 26
3.15.2 Biometrical parameter of variation 27
3.15.3 Character association (Correlation 29
coefficient)
3.15.4 Test of significance 29
3.15.5 Path-coefficient analysis 30
IV RESULTS AND DISCUSSION 31 39
4.1 Analysis of variance 3 2
4.2 Mean performance 3 3
4.2.1 Number of leaves 35
4.2.2 Stalk length (cm) 35
4.2.3 Curd length (cm) 35
4.2.4 Curd width (cm) 36
4.2.5 Gross plant weight GPW (g) 36
4.2.6 Marketable curd weight MCW (g) 36
4.2.7 Net curd weight NCW (g) 37
4.2.8 Marketable curd yield (kg) 37
4.2.9 Days to 50% curd formation 37
4.2.10 Days to maturity 38
4.2.11 Harvest index (%) 38
4.2.12 Curd index (cm2) 38
4.2.13 Leaf length (cm) 39
4.2.14 Leaf width (cm) 39
4.2.15 Leaves attached to curd 39
4.2.16 Days to first harvest for earliness 40
4.2.17 Curd yield per plot (kg) 40
4.2.18 Duration of crop (sowing to last harvest) 40
vi
Chapters Particulars Page
4.2.19 Curd yield (q/ha) 40
4.3 Genetic variability 4 1
4.3.1 Genotypic and phenotypic coefficient of 43
variation
4.3.2 Heritability and genetic advance as percent 47
of mean
4.4 Correlation coefficient 52 62
4.5 Path coefficient analysis 56 66
V SUMMARY AND CONCLUSIONS 62 79
REFERENCES 68
APPENDICES
Appendix-I 75
RESUME 76
vii
LIST OF TABLES
Table Title Page
3.1 Physico-chemical properties of the soil 18
3.2 Details of the genotypes/varities 19
4.1 Analysis of variance for yield and its component 32
characters in cauliflower
4.2 Mean performance for curd yield and its components 34
along with quality traits in cauliflower
4.3 Qualitative characters observed in cauliflower 42
4.4 Genetic parameters of variation for yield and its 48
component characters in cauliflower
4.5 Genotypic and phenotypic correlation coefficient 53
between curd yield and its component characters in
cauliflower
4.6 Genotypic path coefficient analysis for curd yield and its 60
component characters in cauliflower
viii
Description:investigation and preparation of manuscript and providing necessary infrastructure and resources to accomplish my research work. I am very much
