HETEROSIS AND COMBINING ABILITY STUDIES FOR YIELD AND ITS COMPONENTS TRAITS ...

120 Pages·2016·4.09 MB·English

“HETEROSIS AND COMBINING ABILITY STUDIES FOR
YIELD AND ITS COMPONENTS TRAITS IN SESAME
(Sesamum indicum L.)”

A

THESIS
SUBMITTED TO
NAVSARI AGRICULTURAL UNIVERSITY
NAVSARI

IN PARTIAL FULFILMENT OF THE REQUIREMENTS
FOR
THE AWARD OF THE DEGREE

OF

MASTER OF SCIENCE
(AGRICULTURE)

IN
GENETICS AND PLANT BREEDING

BY

ARPANKUMAR JAGADISHBHAI NAYAK
B. Sc. (Hons.) Agri.

DEPARTMENT OF GENETICS AND PLANT BREEDING
N.M. COLLEGE OF AGRICULTURE
NAVSARI AGRICULTURAL UNIVERSITY
NAVSARI – 396 450

GUJARAT

JUNE – 2016

Registration No. 2010114053
DEDICATED

TO

MYBELOVED PARENTS

AND

MAJOR GUIDE

Arpan Nayak ..
ABSTRACT
“HETEROSIS AND COMBINING ABILITY STUDIES FOR YIELD AND ITS
COMPONENT TRAITS IN SESAME [Sesamum indicum L.]”

Name of the student Major advisor
NAYAK ARPANKUMAR J. Dr. S. R. Patel

DEPARTMENT OF GENETICS AND PLANT BREEDING
N. M. COLLEGE OF AGRICULTURE
NAVSARI AGRICULTURAL UNIVERSITY, -396 450

ABSTRACT

G g The present investigation on sesame comprised of a half-diallel set of eight parents and their
28 crosses. The experiment was laid out in randomized block design with three replications at college
farm, N. M. College of agriculture, Navsari Agricultural University, Navsari during kharif, 2014-15.
The observations were recorded as visual assessment [days to flowering and days to maturity, plant
height (cm), number of branches per plant, number of capsules per plant, capsule length, seed yield per
plant (g), 1000 seed weight (g), harvest index (%) and oil content (%) ] on randomly selected five
competitive individual plants. The data were subjected to estimation of heterosis, combining ability
analysis (Model-1, Method-2 of Griffing, 1956a).
Analysis of variance revealed significant differences among the genotypes, hybrids and
parents for all the traits except harvest index for parent studied. Several crosses exhibited significantly
desirable heterobeltiosis and economic heterosis for seed yield per plant and other characters. On the
basis of per se performance and estimates of heterobeltiosis, the crosses ASRT10 x AT 324 (41.88%)
and ASRT10 x Patan 64 (41.88 %) were found to be most promising for seed yield per plant, hence
could be evaluated further to exploit the heterosis or utilized in future breeding programme to obtain
desirable segregants for the development of superior genotypes.
Combining ability analysis revealed presence of both additive and non-additive gene effects.
The estimates of general combining ability effects suggested that parents AT 164 and ASRT 10 were
good general combiners for seed yield per plant and its related attributes. As regards specific
combining ability effects cross combinations Vijapadi selection x ASRT 9 (3.29) followed by ASRT10
x Patan 64 (2.83) and ASRT10 x AT 324 (2.81) were significant for seed yield per plant.
Looking to the role of additive as well as non-additive gene effects in the inheritance of most
of the traits in the population under study, suggest diallel selective mating followed by heterosis
breeding and biparental mating or recurrent selection breeding approaches for creation of more
variability and to identify desirable transgressive segregants for further improvement of yield and yield
component traits.
On the basis of per se performance, heterosis and combining ability effects for seed yield per
plant and its components, parents AT 164 and ASRT 10 and the hybrids ASRT10 x AT 324, ASRT10
x Patan 64 and Vijapadi selection x ASRT 9 were identified superior hybrids for their large scale
testing.
…………………………………………………………………………….......Abstract
Dr. S. R. Patel
Associate Professor,
Dept. of Genetics and Plant Breeding,
College of Agriculture,
Bharuch campus, Bharuch.
N. A. U., Navsari-396 450

C E R T I F I C A T E

This is to certify that the thesis entitled, “Heterosis
and Combining Ability Studies for Yield and its Components
Traits in Sesame (Sesamum indicum L.)” submitted by Mr.
Nayak Arpankumar Jagdishbhai in partial fulfillment of the
requirements for the award of the degree of Master of Science
(Agriculture) in Genetics and Plant Breeding of Navsari
Agricultural University is a record of bonafide research work
carried out by him under my guidance and supervision and that
the thesis has not been previously formed the basis for the
award of any degree, diploma or has been published for other
similar title. All the assistance and help received during the
course of the investigation have been duly acknowledged by
him.

Place: Navsari

Date: June, 2016 Major Advisor

(S. R.PATEL)
D E C L A R A T I O N

This is to declare that the whole of the research work
reported here in the thesis for the partial fulfilment of the
requirements for the degree of Master of Science (Agriculture)
in Genetics and Plant Breeding by the undersigned is the result
of investigation carried by him under direct guidance and
supervision of Dr. S. R. Patel, Associate Professor, Dept. of
Genetics and Plant Breeding, College of Agriculture, Bharuch
campus, Bharuch. Navsari Agricultural University, Navsari-
396 450 and no part of the work has been submitted for any
other degree so far.

Place: Navsari
Date: June, 2016 (Arpankumar J. Nayak)

Countersigned by

(S. R. Patel)
Associate Professor
Dept. of Genetics and Plant Breeding,
College of Agriculture
Bharuch Campus Bharuch
N. A. U., Navsari-396 450
ACKNOWLEDGEMENT
This memorable occasion of my life provides me a unique privilege to express my deepest
sense of gratitude and indebtedness to my honorable Major Advisor, Dr. S. R. PATEL, Associate
professor, Department of Genetics & Plant Breeding, College of Agriculture, N.A.U., Bharuch
Campus, Bharuch. for his expert and intelligent guidance, constant encouragement, ever willing
help, constant interest, constructive criticism and critical interaction throughout the course of this
investigation and scrutinizing the manuscript right from the selection of my research problem up to
the final shaping of this thesis in its present form.
I am very grateful to my Minor Advisor, Dr. A. V. Narwade, Assistant Professor, Dept.
of Genetics and Plant Breeding, N. M. College of Agriculture. I am equally thankful to my
committee members Dr. R. K. Patel, Associate Professor, Dept. of Genetics and Plant Breeding,
N. M. College of Agriculture, and Dr. H. N. Chhatrola, Assistant Professor Dept. of Statistics &
Computer Center, ASPEE College of Horticulture and Foresty for their valuable comments and
helpful suggestions during the course of this investigation.
I wish to acknowledge Principal Dr. M. K. Arvadiya, N. M. College of Agriculture,
Navsari for providing facilities during the course of my study.
I heartly express my thanks to Dr. K. G. Modha, Dr. madhubala and Dr G. D.
Vadodariya , and all the staff members of Department of Genetics and Plant Breeding, N. M.
Agricultural, Navsari, for their valuable help and co-operation during the course of my study.
The limited world of words hampers me to express the feeling of my indebtedness towards
my friends whose love and affection always makes me feel at home here in the Navsari
Agricultural University. I would like to thank my seniors Mandar, Dr. Haimil, Gaurav, Vipule,
unnati, for their direct and indirect help to assist me reach this pinnacle.
It is my pleasant duty to acknowledge most gratefully invaluable and unbelievable help
received with joyful company from my friends gallery Aalok, Vishat, Ronak, Balat, Ravi, Ronak,
Dubay, Haresh, Kiran, Chirag, Chelabhai. Dinesh, RJ, Jaykishan, Momin, Joshibhai, Joshi, Mali,
Ravi, Sarjan, Bhagora, Vitthal, Pooja, Kalpana, and Reena during the course of this study. It is
my pleasant duty to acknowledge most gratefully invaluable and unbelievable help received with
joyful company from my juniors Mitesh, Suchi, Bhavna and Shubham and thanks to my all
friends, who have inspired me in all respects during this study and I remain indebted forever to
them.
At this inexplicable moment of joy, words are inadequate in the available lexicon to
express my gratitude and respect towards my family, who took pains to bring me up to this stage,
without their love, sacrifice, extra-ordinary patience, inspiration and blessings this work would
not have taken final shape. My heart takes breath when I realize the painstaking efforts taken up
by My “Family Member’s” for making me post graduate of the noble profession. Words are just
not sufficient to express my feeling for their love, blessing, affection and encouragement given to
me by my parents Jagadishbhaai and Javanikaben and I solemnized to dedicate this thesis to them
and vis-à-vis offers this as a humble tribute to science. My heartly lovable sisters Hema, Manisha,
and Jalpa brother Hardik and my Fiancee Reetu.
I special thanks to my beloved uncle S. M. Nayak and his son Monty and cousin brother
Dilip Nayak who are deeply sited in my heart and always encourage every time.
Last but far from the least, I bow my head in extreme regards to
the almighty "JAY BHOLE” and “JAI RANGILA HANUMAN” whose
blessings enabled me to reach this destination.
Place: Navsari

Date : / /2016 (ARPAN NAYAK)
LIST OF SYMBOLS AND ABBREVIATIONS
Symbols
= is equal to
X cross
: Colon
( ) bracket
; Semi colon

Abbreviations
G gram
et al. and others
% per cent
viz. namely
C.D. Critical difference
Cm Centimeter
Contd… Continued
C.V. Co-efficient of variation
Max. Maximum
Min. Minimum
N. M. Naveenchandra Mafatlal
No. Number
R.B.D. Randomized Block Design
S.Em. Standard error of mean
F First filial generation
1
F. S. Full Sib
H. S. Half Sib
Gca General Combining ability
Sca Specific Combining ability