Rekha Kumawat Thesis

153 Pages·2015·0.89 MB·English

Epidemiology and Management of Powdery
Mildew of Fenugreek (Trigonella foenum-
graecum L.)

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Rekha Kumawat

Thesis

Doctor of Philosophy in Agriculture
(Plant Pathology)

2015

Department of Plant Pathology
S.K.N. COLLEGE OF AGRICULTURE, JOBNER-303 329
SRI KARAN NARENDRA AGRICULTURE UNIVERSITY,
JOBNER
Epidemiology and Management of Powdery Mildew of
Fenugreek (Trigonella foenum-graecum L.)

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dh egkekfjrk ,oa izcU/ku

Thesis

Submitted to
Sri Karan Narendra Agriculture University,
Jobner

in partial fulfillment of the requirements for
the degree of

Doctor of Philosophy

in
Agriculture
(Plant Pathology)

By
Rekha Kumawat
2015
Sri Karan Narendra Agriculture University, Jobner
S.K.N. College of Agriculture, Jobner

CERTIFICATE - I

Dated:……/……/2015

This is to certify that Miss Rekha Kumawat had successfully completed
the preliminary examination held on 16/06/2014 as required under the
regulation for Ph.D. degree.

(K.S. SHEKHAWAT)
Head
Department of Plant Pathology
S.K.N. College of Agriculture,
Jobner
Sri Karan Narendra Agriculture University, Jobner
S.K.N. College of Agriculture, Jobner

CERTIFICATE – II

Dated: …/……/2015

This is to certify that the thesis entitled “Epidemiology and
Management of Powdery Mildew of Fenugreek (Trigonella foenum-
graecum L.)” submitted for the degree of Doctor of Philosophy in the subject
of Plant Pathology embodies bonafide research work carried-out by Miss
Rekha Kumawat under my guidance and supervision and that no part of this
thesis has been submitted for any other degree. The assistance and help
received during the course of investigation have been fully acknowledged. The
draft of the thesis was also approved by advisory committee on 24/12/ 2014.

(K.S. SHEKHAWAT) (K.S. SHEKHAWAT)
Head Major Advisor
Department of Plant Pathology
S.K.N. College of Agriculture,
Jobner

(S.N. SHARMA)
Dean
S.K.N. College of Agriculture,
Jobner
Sri Karan Narendra Agriculture University, Jobner
S.K.N. College of Agriculture, Jobner

CERTIFICATE - III

Dated: ........../2015

This is to certify that the thesis entitled “Epidemiology and
Management of Powdery Mildew of Fenugreek (Trigonella foenum-
graecum L.)” submitted by Miss Rekha Kumawat to Sri Karan Narendra
Agricultural University, Jobner in partial fulfillment of the requirements for the
degree of Doctor of Philosophy in the subject of Plant Pathology, after
recommendation by the external examiner was defended by the candidate
before the following members of the advisory committee. The performance of
the candidate in the oral examination on this thesis has been found
satisfactory. We therefore, recommend that the thesis be approved.

(K.S. SHEKHAWAT)
Major Advisor

(S.C. JAIN) (DHIRENDRA SINGH)
Advisor Advisor

(B.L. JAT) (V.K. YADAV)
Advisor Director Education, Nominee

(K.S. SHEKHAWAT) (ANILA DOSHI)
Head External Examiner
Department of Plant Pathology
S.K.N. College of Agriculture, Jobner

Approved

Director Education, Nominee
Sri Karan Narendra Agriculture University, Jobner
Sri Karan Narendra Agriculture University, Jobner
S.K.N. College of Agriculture, Jobner

CERTIFICATE - IV

Dated: …..../2015

This is to certify that Miss Rekha Kumawat of the Department of Plant
Pathology, S.K.N. College of Agriculture, Jobner has made all
corrections/modifications in the thesis entitled “Epidemiology and
Management of Powdery Mildew of Fenugreek (Trigonella foenum-
graecum L.)” which were suggested by the external examiner and the advisory
committee in the oral examination held on__________. The final copies of the
thesis duly bound and corrected were submitted on ___________, and
forwarded herewith for approval.

(K.S. SHEKHAWAT) (K.S. SHEKHAWAT)
Head Major Advisor
Department of Plant Pathology
S.K.N. College of Agriculture, Jobner

(S.N. SHARMA)
Dean
S.K.N. College of Agriculture, Jobner

Approved

Director Education Nominee
Sri Karan Narendra Agriculture University, Jobner
ACKNOWLEDGEMENT

I take great pleasure to express my honest and deep sense of gratitude and
indebtedness to my Major Advisor Dr. K.S. Shekhawat, Professor and Head, Department of
Plant Pathology, S.K.N. College of Agriculture, Jobner for his valuable guidance,
constructive suggestion, keep keen and sustained interest, constant encouragement,
propitious assistance, kind and gracious patronage in preparation of this manuscript and for
providing necessary facilities and benevolent patronage.
I concurrence my humble thanks to my advisory committee consisting Dr. S.C.
Jain, Professor, Department of Plant Pathology, Dr. Dhirendra Singh, Professor,
Department of Plant Breeding and Genetics, Dr. B.L. Jat, Professor, Department of
Entomology and Dr. V.K. Yadav, Director Education Nominee, Professor and Head,
Department of Biochemistry for their valuable guidance, incessant encouragement and keen
interest during course of investigation.
I express my sincere thanks to Dr. G.L. Keshwa, and Dr. S.N. Sharma, Former
and Present Dean S.K.N. College of Agriculture, Jobner, respectively for providing necessary
facilities in this venture.
I wish to express my deep sense of gratitude to Dr. R.R. Ahir, Dr. A.C. Mathur,
Dr. S. Godhika, Dr. Mahaveer Singh, Professors, Dr. R.P. Ghasolia, Asstt. Professor and
Dr. S.K. Goyal, Senior Technical Assistant, Dr. R.L. Mahala, Technical Assistant, Sh.
Anandi Lal Kumawat and Teeja Devi, Department of Plant Pathology for their valuable
help received during the execution of present investigation.
I offer my sincere appreciation to my academic colleagues especially who boosted
my moral and extended unreserved help of varied nature.
No words are sufficient to express my deep sense of regard and gratitude to my
respected Father Sh. Mohan Lal Kumawat Mothers Smt. Munni Devi, Tauji Sh. Heeralal
Kumawat Taiji Smt. Teeja Devi for their great affection, constant inspiration and moral
support during my education.
I express to my deep sense of profuse reverence, indebtedness and affection to my
respected Bhaiya Bhabhi Dr. Rajendra, and Dr. Kamlesh Kumawat, Mr. Mukesh, and Mamta
Devi, Vishnu and Sumitra Devi, and sister Kavita and Gulshan, younger brother Motilal and
Kamlesh, Cute Nephew, Paritesh, Khusant and nice Bhavya and Yogita for their devoted
cooperation and sacrifice various movements of troubles as well as enjoyment in my life.
. I am also grateful to Mr. Suresh Yadav, M/s Vimal Computer, Jobner for typing
the manuscript neatly and efficienty within a very short period.
Last but not the least, a million thanks to almighty GOD, who made me to this
task and made every Job a success for me.

Place : Jobner
Date : (Rekha Kumawat)
CONTENTS

Chapter Particulars Page
No. No.

INTRODUCTION
1. ………..

2. REVIEW OF LITERATURE ………..
3. MATERIALS AND METHODS ………..
4. EXPERIMENTAL RESULTS ………..
5. DISCUSSION ………..
6. SUMMARY ………..
LITERATURE CITED ………..
ABSTRACT (English) ………..
ABSTRACT (Hindi) ………..
LIST OF TABLES

Particulars
Table Page No.
No.
4.1 Effect of temperature on conidial germination of Erysiphe -----------
polygoni of fenugreek
4.2 Effect of relative humidity on conidial germination of -----------
Erysiphe polygoni of fenugreek at different temperatures
4.3 Effect of incubation period on conidial germination of -----------
Erysiphe polygoni of fenugreek at different temperatures
4.4 Effect of darkness and light on conidial germination of -----------
Erysiphe polygoni of fenugreek at different temperatures
4.5 Effect of temperature on host infection by Erysiphe -----------
polygoni of fenugreek after 96 hours of incubation (In vitro)
4.6 Effect of relative humidity on host infection by Erysiphe -----------
polygoni of fenugreek at 240C temperature after 96 hours
of incubation (In vitro)
4.7 Effect of darkness and light on host infection by Erysiphe -----------
polygoni of fenugreek at 240C temperature after 96 hours
of incubation (In vitro)
4.8 Effect of host age on infection by Erysiphe polygoni of -----------
fenugreek under cage house conditions
4.9 Per cent disease intensity of fenugreek in relation to -----------
environmental factors
4.10 Correlation of disease intensity with major meteorological -----------
factors
4.11 Prediction equation and R2 for predicting powdery mildew -----------
disease intensity in fenugreek
4.12 Infection of Erysiphe polygoni on different hosts -----------
4.13 Estimation of avoidable loss on powdery mildew disease -----------
intensity and seed yield of fenugreek
4.14 Reaction of fenugreek germplasm entries against powdery -----------
mildew disease (Erysiphe polygoni) under laboratory
conditions
4.15 Reaction of fenugreek germplasm entries against powdery -----------
mildew disease (Erysiphe polygoni) under field conditions
4.16 Effect of dates of sowing on powdery mildew disease -----------
intensity and seed yield of fenugreek
4.17 Effect of spacing on powdery mildew disease intensity and -----------
seed yield of fenugreek
4.18 Effect of micronutrients on powdery mildew disease -----------
intensity and seed yield of fenugreek
4.19 Effect of fungicides on powdery mildew disease intensity -----------
and seed yield of fenugreek
4.20 Economic benefit : cost ratio of various treatments used for -----------
powdery mildew disease of fenugreek
4.21 Effect of biocides on powdery mildew disease intensity and -----------
seed yield of fenugreek
4.22 Effect of SAR activator on powdery mildew disease -----------
intensity and seed yield of fenugreek