Calcium deficiency causes toxicity of:
(1) Iron
(2) Manganese
(3) Boron
(4) None of these
Blue chaff disease of oats is due to deficiency of:
(1) Copper
(2) Molybdenum
(3) Boron
(4) Manganese
Chlorine is associated to photosynthesis in production of:
(1) Auxin
(2) RNA
(3) Oxygen
(4) DNA
Free floating fresh water fern is:
(1) Anabaena
(2) Azolla
(3) Azospirillum
(4) None of these
Border strip of irrigation is followed in:
(1) Potato
(2) Sugarcane
(3) Mango
(4) Wheat
The nutrient removed in maximum quantity by paddy crop is:
(1) Nitrogen
(2) Phosphorus
(3) Potash
(4) Zinc
Antagonism of Mn exists with:
(1) Calcium
(2) Boron
(3) Iron
(4) Copper
Depression in efficiency of Rhizobium is due to:
(1) Iron application
(2) Phosphorus application
(3) Potash application
(4) Excessive nitrogen use
Purple pigmentation in Brassicas is due to:
(1) Deficiency of Iron
(2) Excessive nitrogen
(3) Potassium deficiency
(4) Phosphorus deficiency
Which herbicide is also a hormone:
(1) Simazine
(2) Isoproturon
(3) 2, 4–D
(4) Propazine
H 777 is a variety of:
(1) Barley
(2) Wheat
(3) 2, 4–D
(4) Linseed
Yellow mosaic in soybean is spread by:
(1) Soil
(2) Seed
(3) Wind
(4) White fly
Copper deficiency is a problem in which part of India:
(1) North
(2) South
(3) East
(4) West
Objectionable weed for seed production of wheat is:
(1) Chenopodium album
(2) Convolvulus arvensis
(3) Phalaris minor
(4) Melilotus indica
Which element is maximum in black soil:
(1) Nitrogen
(2) Phosphorus
(3) Potash
(4) Sulphur
Boron deficiency causes:
(1) Blue chaff disease
(2) Die back disease
(3) Gray speck disease
(4) Brown heart disease
Maize crop is specially sensitive to soil moisture stress at:
(1) Knee high stage
(2) Tasseling stage
(3) Anthesis stage
(4) None of these
Yellow mosaic resistant variety of Moong is:
(1) Moong T1
(2) T44
(3) Pant moong –4
(4) Pusa Baisakhi
Which is not a synthetic auxin:
(1) 2, 4–D
(2) IAA
(3) Dalapon
(4) Dicamba
Which crop is susceptible to deficiency of iron:
(1) Barley
(2) Maize
(3) Peas
(4) Rice
Drought tolerance in plants is due to:
(1) Improved water uptake
(2) Conserving moisture
(3) Mitigating stress mechanism
(4) None of these
At what time groundnut plant is self pollinated:
(1) Morning
(2) Evening
(3) Mid day
(4) Night
Control of weeds by weedicides in linseed is:
(1) MCPA
(2) 2, 4–D
(3) Atrazine
(4) None of these
The process of development of seed from anther is called:
(1) Androgenesis
(2) Parthenogenesis
(3) Apomixis
(4) Sporogenesis
The most important technique for the production of virus-free seed is:
(1) Roguing
(2) Grow out test
(3) Tissue culture
(4) Planting in isolation
One of the following is the seed borne diseases:
(1) Powdery mildew of peas
(2) Loose smut of wheat
(3) Rust of lentil
(4) Cercospora leaf spot of mungbean
The treatment of seeds with rhizobium culture and fungicides is done in:
(1) Soybean
(2) Millets
(3) Mustard
(4) Sugarcane
The seed plot technique is followed in the seed production of:
(1) Wheat
(2) Potato
(3) Garlic
(4) Sweet potato
The Central Seed Testing Laboratory is located at:
(1) New Delhi
(2) Bangalore
(3) Kolkata
(4) Chandigarh
The isolation distance for the production of foundation seed in bajra is:
(1) 150 m
(2) 500 m
(3) 1000 m
(4) 1600 m
In germination test the commonly used term B P stands for:
(1) Below paper
(2) Between paper
(3) Butter paper
(4) Barrier paper
Dithane M45 is a:
(1) Rodenticide
(2) Weedicide
(3) Fungicide
(4) Hormone
In seed technology the term “Ear” means:
(1) Hearing organ
(2) Type of inflorescence
(3) Type of seed
(4) Vigour testing Method
With a decrease of 10°F temperature the storage potential of the seed is:
(1) Decreased
(2) Doubled
(3) Tripled
(4) Reduced to half
The genetic purity of the seed is tested by:
(1) T Z test
(2) Moisture test
(3) Grow out test
(4) Dormancy test
Halna is a variety of:
(1) Tomato
(2) Lentil
(3) Wheat
(4) Rice
One of the seeds has the dormancy:
(1) Groundnut
(2) Mustard
(3) Onion
(4) Wheat
In quality seed, our primary concern is with:
(1) Endosperm
(2) Seed coat
(3) Embryo
(4) None of these
One of the seeds is non-albuminous:
(1) Castor
(2) Groundnut
(3) Lentil
(4) Onion
One of the following categories of seeds is not certified by the certification agency:
(1) Certified seed
(2) Nucleus seed
(3) Breeder seed
(4) Foundation seed
The isolation distance for production of loose smut-free seeds in wheat is:
(1) 1000 m
(2) 150 m
(3) 10 m
(4) 3 m
Delinting in cotton seed is required for:
(1) Proper distribution of seed
(2) Improving viability
(3) Enhancing germination
(4) Establishing seedlings better
The highly proteinous seed is:
(1) Peas
(2) Chickpea
(3) Soybean
(4) Wheat
Fluff is the seed produced in:
(1) Sunflower
(2) Sugarcane
(3) Soybean
(4) Mustard
One of the following seed takes longest time to germinate:
(1) Bitter gourd
(2) Guar
(3) Mungbean
(4) Wheat
Caruncle is found in the seed of:
(1) Wheat
(2) Castor
(3) Cluster bean
(4) Chickpea
Aflatoxin is a disease afflicted in the seeds of:
(1) Groundnut
(2) Sorghum
(3) Soybean
(4) Rajma
Most common used fungicide for seed treatment is:
(1) Dithane M–45
(2) Dithane Z–78
(3) Agrosan G N
(4) Copper sulphate
Mitosis occurs between:
(1) G1 to S
(2) S to G2
(3) G2 to G1
(4) None
When there is crossing over between centromere and gene under consideration, the segregation of that gene takes place during:
(1) Metaphase I
(2) Metaphase II
(3) Anaphase I
(4) Anaphase II
Renner complex is associated with:
(1) D. melanogaster
(2) O. lamarckiana
(3) C. Elegans
(4) X. levis
Polyploidy in plant is induced by:
(1) X-ray
(2) GA3
(3) Colchicine
(4) Acridine dye
Q-Band is obtained by use of:
(1) Quinacrine mustard
(2) Nitrogen mustard
(3) Sulphur mustard
(4) All of these
Which of the following histone is smallest:
(1) H4
(2) H3
(3) H2A
(4) H1
DNA G is responsible for:
(1) Primase
(2) Gyrase
(3) SSB
(4) TBP
Nalidixic acid, an antibiotic is an inhibitor of:
(1) RNA synthesis
(2) DNA synthesis
(3) Protein synthesis
(4) DNA repair
‘Kozak’ is associated with:
(1) Transcription
(2) Translation
(3) DNA replication
(4) DNA repair
Frame-shift mutation is caused by:
(1) 2-amino purine
(2) Aflatoxin
(3) Acridine orange
(4) None of these
GC→TA transversion is caused by:
(1) Aflatoxin
(2) UV rays
(3) Deamination
(4) None of these
XYZ system of hybrid seed production in wheat was proposed by:
(1) Driscoll
(2) Sears
(3) Rilley
(4) Ramage
A Double top cross refers to:
(1) Inbred × inbred
(2) Inbred × OPV
(3) Single cross × inbred
(4) Single cross × OPV
Development of embryo from antipodal cell is known as:
(1) Apogamy
(2) Adventitive embryony
(3) Apospory
(4) Androgamy
Semigamy is found in:
(1) Cotton
(2) Sunflower
(3) Crepis
(4) None of these
Hybrid necrosis in wheat is governed by:
(1) One dominant gene
(2) Two complementary genes
(3) Two inhibitory genes
(4) Polygene
The source of Xa-21 gene in rice is:
(1) O. sativa
(2) O. nivara
(3) O. longistaminata
(4) O. minuta
“Golden Rice” refers to the rice rich in:
(1) β-carotene
(2) Fe
(3) Zn
(4) Protein
A breeding method which permits moderate inbreeding under moderate selection pressure is called:
(1) Mass selection
(2) Mass pedigree selection
(3) Back cross
(4) Pedigree selection
Triple test cross is an extension of:
(1) NCD I
(2) NCD II
(3) NCD III
(4) None of these
‘Opaque-2’ mutant of maize has:
(1) High lysine & high tryptophan
(2) High lysine & low tryptophan
(3) Low lysine & low tryptophan
(4) Low lysine & high tryptophan
‘Double Zero’ rapeseed mustard refers to:
(1) Low erucic & low glucosinolate
(2) Low erucic & high glucosinolate
(3) High erucic & low glucosinolate
(4) High erucic & high glucosinolate
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