PLANT PHYSIOLOGY

122 Pages·2011·4.86 MB·English

EVALUATION OF GREENGRAM
GENOTYPES UNDER IMPOSED
MOISTURE STRESS CONDITIONS

M. DEEPA

B.Sc., (Ag)

MASTER OF SCIENCE IN AGRICULTURE

(PLANT PHYSIOLOGY)

2011
EVALUATION OF GREENGRAM
GENOTYPES UNDER IMPOSED
MOISTURE STRESS CONDITIONS

BY

M. DEEPA

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

(PLANT PHYSIOLOGY)

CHAIRPERSON: Dr. G. RAMA RAO

DEPARTMENT OF PLANT PHYSIOLOGY
SRI VENKATESWARA AGRICULTURAL COLLEGE, TIRUPATI
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY
RAJENDRANAGAR, HYDERABAD – 500 030

2011
DECLARATION

I, Ms. M. DEEPA, hereby declare that the thesis entitled
“EVALUATION OF GREENGRAM GENOTYPES UNDER IMPOSED
MOISTURE STRESS CONDITIONS” submitted to Acharya N. G. Ranga
Agricultural University, Hyderabad for the award of degree of MASTER
OF SCIENCE IN AGRICULTURE is the result of original research work
done by me. I also declare that no material contained in this thesis has been
published earlier in any manner.

Place : (M. DEEPA)
I.D. No- TAM-2009/34
Date :

ii
CERTIFICATE
This is to certify that the thesis entitled “EVALUATION OF
GREENGRAM GENOTYPES UNDER IMPOSED MOISTURE
STRESS CONDITIONS” submitted in partial fulfillment of the
requirements for the award of degree of MASTER OF SCIENCE
(Agriculture) in PLANT PHYSIOLOGY to the Acharya N.G. Ranga
Agricultural University, Hyderabad, is a record of the bonafide research
work carried out by Ms. M. DEEPA 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 the award
of any other degree or diploma. The published part has been fully
acknowledged. All assistance and help received during the course of the
investigations have been duly acknowledged by the author of the thesis.

(Dr. G. RAMA RAO)
Chairperson of the Advisory Committee

Thesis approved by the Student’s Advisory Committee:

Chairperson : Dr. G. RAMA RAO _______________
Associate Professor
Department of Plant Physiology
S.V. Agricultural College,
Tirupati – 517 502, A.P.

Member : Dr. P. LATHA _______________
Scientist
Department of Plant Physiology
Institute of Frontier Technology
Regional Agricultural Research Station
Tirupati – 517 502, A.P.

Member : Dr. M.V.S. NAIDU _______________
Associate Professor
Dept. of Soil Science and
Agricultural Chemistry
S.V. Agricultural College
Tirupati – 517 502, A.P.

Date of final viva-voce:
iii
CERTIFICATE
Ms. M. DEEPA has satisfactorily prosecuted the course of research
and that the thesis entitled “EVALUATION OF GREENGRAM
GENOTYPES UNDER IMPOSED MOISTURE STRESS CONDITIONS”
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 there of has not been previously submitted by
her for a degree of any university.

(Dr. G. RAMA RAO)
Chairperson
Associate Professor
Department of Plant Physilogy
S. V. Agricultural College
Tirupati – 517 502.
Date :
iv
ACKNOWLEDGEMENTS
I am ineffable to express my esteemed thanks to the revered chairman
of my advisory committee Dr. G. Rama Rao, Associate Professor,
Department of Plant Physiology, S.V. Agricultural College, Tirupati for her
keen interest, ardent support and persistent encouragement showered to me.
I am inexpressibly ecstatic to extend my deep sense of my gratitude to
luminous educationalist and Dr. P. Sudhakar, Senior Scientist, Department
of Plant Physiology, Institute of Frontier Technology, Regional Agricultural
Research Station, Tirupati for his dexterous guidance, illuminating
suggestions and unremitting assistance throughout the period of study,
research and in completion of this thesis.
I sincerely accentuate my everlasting gratitude to the revered member
of my advisory committee Dr. P. Latha, Scientist, Department of Plant
Physiology, Institute of Frontier Technology, Regional Agricultural
Research Station, Tirupati and Dr. M.V.S. Naidu, Associate Professor,
Department of Soil Science and Agricultural Chemistry for their inspiring,
meticulous and valuable guidance during the entire period of my
investigation.
It is my honour to portray Dr. K. Balakrishna Reddy, Professor,
Department of Plant Physiology, S.V. Agricultural College, Mrs. Dr. V. Raja
Rajeswari, Professor & Head, Department of Plant Physiology for their
valuable suggestions and persistent encouragement during the course of this
study.
In explicable in fervent to my parents Smt. M. Tulasamma and
Sri. M. Pulla Reddy and, my loving brother M. Niranjan Reddy for their
undiminishing love, benign care and zealous encouragement throughout this
endeavour.
v
Special thanks to my dear friend K. Sujata, Technical Assistant,
Institute of Frontier Technology, RARS, Tirupati for her help, friendly
assistance and valuable cooperation during my research work.
With utmost satisfaction I acknowledge the enormous help of my
colleagues Sagarika, Dilip, Pranusha, Isha, Ramadevi, Indumathi,
Swetha, Ashok, Sivasankar, Pande, Sandeep, Subbaiah, Subhakar and
Somu and juniors Rajasekhar, Raghavendra, Sarat, Geeta, Rama, Sharmila
and Jayaramudu for their friendly assistance and valuable cooperation
during my research work.
I am thankful to K. Bhanu Priya, Teaching Assistant in MABM and
C. Lalitha, for their assistance during my research work.
I am grateful to Acharya N.G. Ranga Agricultural University,
Hyderabad for providing me with the opportunity for prosecuting my post
graduation programme and also the facilities and financial assistance
provided during my study.
I sincerely thank the farming community who helped me in
successful completion of this humble piece of work.
In finale, I thank all my well wishers and others who helped me
directly or indirectly not placed here, for their kind cooperation and support
rendered to me.



vi
CONTENTS
Chapter No. Title Page No.
I INTRODUCTION 1-3
II REVIEW OF LITERATURE 4-18
III MATERIAL AND METHODS 19-33
IV RESULTS AND DISCUSSION 34-89
V SUMMARY AND CONCLUSIONS 90-93
LITERATURE CITED 94-102

vii
LIST OF TABLES

Table Page
Title
No. No.
Mechanical analysis of soil experimental plots (Bouyoucos
3.1 20
hydrometer method, Piper, 1950)
3.2 Chemical analysis of soil experimental plots 20
Standard week wise meteorological data during the crop growth
3.3 22
period of groundnut (07-01-2011 to 23-03-2011)
Effect of mid season and end season moisture stress on field
4.1 35
emergence index of green gram genotypes
4.2 Effect of mid season and end season moisture stress on days 37
to 50% flowering of green gram genotypes
4.3 Effect of mid season and end season moisture stress on 39-40
plant height (cm) of greengram genotypes
4.4 Effect of mid season and end season moisture stress on root 42-43
biomass (g plant-1) of green gram genotypes
4.5 Effect of mid season and end season moisture stress on 44-45
shoot biomass (g plant-1) of green gram genotypes
4.6 Effect of mid season and end season moisture stress on leaf 47-48
biomass (g plant-1) of green gram genotypes
4.7 Effect of mid season and end season moisture stress on pod 49
dry weight (g plant-1)of green gram genotypes
4.8 Effect of mid season and end season moisture stress on total 52-53
dry matter (g plant-1) of green gram genotypes
4.9 Effect of mid season and end season moisture stress on leaf 55-56
area (cm2 plant-1) of greengram genotypes
4.10 Effect of mid season and end season moisture stress on leaf 58-59
area index of greengram genotypes

viii
4.11 Effect of mid season and end season moisture stress on crop 61-62
growth rate (g m-2 day-1) of greengram genotypes
4.12 Effect of mid season and end season moisture stress on net 64-65
assimilation rate (g dm-2 day-1) of greengram genotypes
4.13 Effect of mid season and end season moisture stress on leaf 67-68
area duration (cm2day-1) of green gram genotypes

4.14 Effect of mid season and end season moisture stress on 70
photosynthetic rate (mol CO m-2 sec-1) of green gram
2
genotypes
4.15 Effect of mid season and end season moisture stress on 71
transpiration rate (m mol H O m-2 sec-1) of green gram
2
genotypes
4.16 Effect of mid season and end season moisture stress on 73
stomatal conductance (mol H O m-2 sec-1) of green gram
2
genotypes
4.17 Effect of mid season and end season moisture stress on 75
Specific leaf area (cm2 g-1) of green gram genotypes
4.18 Effect of mid season and end season moisture stress on SPAD 76
chlorophyll meter reading of green gram genotypes
4.19 Effect of mid season and end season moisture stress on 79
chlorophyll fluorescence (Fv/Fm) of green gram genotypes
4.20 Effect of mid season and end season moisture stress on 83
yield components of green gram genotypes
4.21 Effect of mid season and end season moisture stress on 87
yield and harvest index of green gram genotypes

ix