EFFECT OF SOWING DATES ON SEED YIELD, QUALITY AND STORABILITY OF MAIZE (Zea ...

138 Pages·2016·3.34 MB·English

EFFECT OF SOWING DATES ON SEED
YIELD, QUALITY AND STORABILITY
OF MAIZE (Zea mays L.) HYBRID

SASANAPURI ARCHANA

B.Sc. (Ag.)

MASTER OF SCIENCE IN AGRICULTURE

(SEED SCIENCE AND TECHNOLOGY)

2014
EFFECT OF SOWING DATES ON SEED YIELD,
QUALITY AND STORABILITY OF MAIZE
(Zea mays L.) HYBRID
BY
SASANAPURI ARCHANA

B.Sc. (Ag.)

THESIS SUBMITTED TO THE ACHARYA N.G. RANGA
AGRICULTURAL UNIVERSITY IN PARTIAL FULFILMENT OF
THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF

MASTER OF SCIENCE IN AGRICULTURE
(SEED SCIENCE AND TECHNOLOGY)

CHAIRPERSON: Dr. K. KANAKA DURGA

DEPARTMENT OF SEED SCIENCE AND TECHNOLOGY
COLLEGE OF AGRICULTURE
RAJENDRANAGAR, HYDERABAD-500 030
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY
2014
CERTIFICATE

Ms. SASANAPURI ARCHANA, has satisfactorily prosecuted the course of
research and that the thesis entitled “EFFECT OF SOWING DATES ON SEED YIELD,
QUALITY AND STORABILITY OF MAIZE (Zea mays L.) HYBRID” submitted is
the result of original research work and is of sufficiently high standard to warrant its
presentation to the examination. I also certify that neither the thesis nor its part thereof has
been previously submitted by her for a degree of any university.

(Dr. K. KANAKA DURGA)
Date : Chairperson
CERTIFICATE

This is to certify that the thesis entitled “EFFECT OF SOWING DATES ON
SEED YIELD, QUALITY AND STORABILITY OF MAIZE (Zea mays L.)
HYBRID” submitted in partial fulfilment of the requirements for the degree of „Master of
Science in Agriculture’ of the Acharya N.G. Ranga Agricultural University, Hyderabad is
a record of the bonafide research work carried out by Ms. SASANAPURI ARCHANA
under our guidance and supervision. The subject of the thesis has been approved by the
Student's Advisory Committee.

No part of the thesis has been submitted by the student for any other degree or
diploma. The published part and all assistance received during the course of the
investigation have been duly acknowledged by the author of the thesis.

(Dr. K. KANAKA DURGA)
Chairperson of the Advisory Committee
Thesis approved by the Student Advisory Committee
Chairperson Dr. K. KANAKA DURGA
Seed Research Officer
SRTC, Rajendranagar
Hyderabad-500 030

Member Dr. Razia Sultana
Associate Professor
Department of Seed Science & Technology
College of Agriculture, ANGRAU
Rajendranagar, Hyderabad-500 030

Member Dr. K. KESHAVULU
Associate Professor & University Head
Department of Seed Science & Technology
College of Agriculture, ANGRAU
Rajendranagar, Hyderabad-500 030

Date of final viva- voce:
DECLARATION

I, SASANAPURI ARCHANA, hereby declare that the thesis entitled “EFFECT
OF SOWING DATES ON SEED YIELD, QUALITY AND STORABILITY OF
MAIZE (Zea mays L.) HYBRID” submitted to the Acharya N. G. Ranga Agricultural
University for the degree of Master of Science in Agriculture is the result of original
research work done by me. It is further declared that the thesis or any part thereof has not
been published earlier in any manner.

Date: (SASANAPURI ARCHANA)
Place: Hyderabad
I. D. No. RAM/12-56
ACKNOWLEDGEMENTS

It is only by grace and blessings of goddess Sri Lalithadevi that I have been able to
complete my studies successfully hitherto and present humble piece of work for which I am
eternally indebted. Merely words are not sufficient to express my sentiments towards my
parents Sri S.Kameswara Rao, Smt. Sridevi and ever lovable brother Naveen Kumar, all
my family members for their unbounding love and dedicated efforts to educate me to this
level without whose encouragement and invaluable moral support, the thesis would not
have seen the light of the day.
At the very outset, I fell inadequacy of words to express my profound indebtness and
deep sense of gratitude to my esteemed Chairperson of Advisory Committee, Dr. K.
KANAKA DURGA, Seed Research Officer, Seed Research & Technology Centre,
Rajendranagar, Hyderabad for her scholastic guidance, unceasing interest, constructive
criticism, technical guidance, scientific view, cherishable counselling, warmer affection,
caring nature, moral support and also her help in bringing out this thesis. It was really a
great pleasure and privilege for me to be associated with her during my M.Sc. degree
programme.
No words would ever sustain the appreciation for the eager involvement, unceasing
encouragement, unreserved help and insightful suggestions at every stage of investigation,
extended by Dr. K. KESHAVULU, Associate Professor & University Head, Department of
Seed Science and Technology, College of Agriculture, Rajendranagar, Hyderabad and the
esteemed Member of my Advisory Committee who helped me to explore new avenues of
research with zeal and happiness. I must confess that it has been a rare privilege for me to
work under his valuable and subtle guidance during my Master’s degree programme.
I wish to express my esteem gratitude to Dr. RAZIA SULTANA, Member of
Advisory Committee, Associate Professor, Department of Seed Science & Technology,
Rajendranagar, Hyderabad for her sustained interest, caring nature, immense help,
constant inspiration and fruitful advice and co-operation.
I feel it is my privilege to place on record my profound etiquette Dr. P. Sujatha,
Assistant Professor and Dr. K. Jhansi Rani, Associate Professor, Amie Raheem, Research
Associate, Department of Seed Science and Technology, College of Agriculture,
Rajendranagar, Hyderabad for their crisp criticism and scholarly guidance during the
course of this investigation.
I am grateful to Dr. N. V. Naidu, Director (Seeds), Dr. M. Sudha Rani, and all
other staff members, M. Suresh, A.E.O, lab assistant, Manga and Das of Seed Research &
Technology Centre and Christopher, Venkatesh, Ravi, Raghavendra, Nirmala, Mounica
and Kavitha of Department of Seed Science & Technology, College of Agriculture,
Rajendranagar, Hyderabad for their transcendent suggestions and efforts and help to
embellish the study.
It is rather difficult to express in words my deep sense of boundless affection, I
would hearty acknowledge the constant encouragement, assistance and constructive
suggestions given by seniors Sandeep, Lakshmi Prasad, Usha, Smt. Sivani and Smt.
Vidya. I fondly thank my juniors Sai Santosh, Sowmya, Neelima and all others for all their
help.
No scholar can complete the work on his own. He or she has to get a little help from
their friends for one or the another item of works, so I owe my gratitude towards my
classmates Ishrath Sulthana, Rajkumari Bony Devi, Mrinali, Anil, Kumar, Smt. Sridevi,
Madhuri and all of my friends for their continued assistance and encouragement in making
my study period a memorable one with their high degree of friendliness and deep affection.
No word is found to express my heartfelt indebtedness to my near and dear senior
Elmounzo for her help, constant encouragement and companionship during my masters
career.
I am grateful to Department of Seed Science & Technology and Seed Research &
Technology Center for providing the material and facilities to complete my research work.
I am very thankful to ANGRAU for providing me stipend during my research work.
I humbly prostrate to all the teachers right from Kindergarten whose dedicated
efforts shaped my career and brought out the best in each of my endeavours.
I felt elated to express my bountiful thanks to those who directly or indirectly helped
me in successful completion of thesis work.

Date:
Place: Hyderabad

(S. Archana)
LIST OF SYMBOLS AND ABBREVIATIONS

% : Per cent
@ : At the rate
± : Plus or minus
°C : Degree Celsius
a.i. : Active ingredient
ASI : Anthesis Silking Interval
ANOVA : Analysis of variance
AUG : August
BSS : Block Sum of Squares
BMS : Block Mean of Squares
C.D. : Critical Difference
C.G.R. : Crop Growth Rate
CRD : Complete Randomized Design
Cm : Centimeter
DAS : Days After Sowing
DHM : Deccan Hybrid Maize
DMA : Dry Matter Accumulation
EMS : Error Mean of Sum of Squares
et al. : Coworkers
Fig. : Figure
FN : Fortnight
G : Gram
GA : Genetic Advance
GCV : Genotypic Co-efficient of Variation
GDDs : Growing Degree Days
H : Hours
h2 : Heritability
Ha : Hectare
i.e., : That is
ISTA : International Seed Testing Association
Jun. : June
Jul. : July
Kg : Kilogram
kg ha-1 : Kilogram per hectare
LAI : Leaf Area Index
LAID : Leaf Area Index Duration
M : Meter
M : Million
MAS : Months After Storage
Mg : Milligram
Min : Minute
Ml : Milliliter
No. : Number
Nov. : November
Oct. : October
PAR : Photosynthetically Active Radiation
PCV : Phenotypic Co-efficient of Variation
RBD : Randomized Block Design
S.Em : Standard error
Sep. : September
Spp. : Species
Tr.SS : Treatment Sum of Squares
Tr.MS : Treatment Mean Sum of Squares
viz. : Namely
T : Tonne
LIST OF CONTENTS
Chapter No. Title Page No.
I INTRODUCTION

II REVIEW OF LITERATURE

III MATERIALS AND METHODS

IV RESULTS AND DISCUSSION

V SUMMARY AND CONCLUSIONS

LITERATURE CITED