MAS Jr. Grade • 2019 • Paper-II
Most commonly used test for estimating GCA in crop species is
A)
Progeny test
B)
Top cross test
C)
Single cross test
D)
Poly cross test
Top cross test, crossing lines with a broad-base tester, is the standard field method to estimate General Combining Ability (GCA).
MAS Jr. Grade • 2019 • Paper-II
The oldest method of plant breeding is-
A)
Introduction
B)
Selection
C)
Hybridization
D)
None of these
Selection by early farmers is the oldest breeding method, predating systematic hybridization and introduction.
MAS Jr. Grade • 2019 • Paper-II
Scientific name of white jute
A)
Corchorus capsularis
B)
Corchorus oiltorius
C)
Gossypium barbadense
D)
None of these
White jute is Corchorus capsularis; tossa jute is Corchorus olitorius with superior fiber quality.
MAS Jr. Grade • 2019 • Paper-II
Shelling percentage in pea?
A)
49%
B)
60%
C)
80%
D)
35%
Shelling percentage in pea (seed weight/pod weight) is about 45-50%, commonly quoted as 49%.
MAS Jr. Grade • 2019 • Paper-II
Pusa Giant Papaya variety is a
A)
Dioecious
B)
Gynoceious
C)
Gynodioecious
D)
Monoceious
Pusa Giant papaya is a dioecious variety with separate male and female plants developed by IARI.
MAS Jr. Grade • 2019 • Paper-II
The bitterness in cucurbit due to
A)
cucurbita
B)
Tetracyclic triterpenes
C)
Calcium oxalate
D)
Alkaloids
Bitterness in cucurbits is due to cucurbitacins, which are tetracyclic triterpenes.
MAS Jr. Grade • 2019 • Paper-II
Scientific Name of Bird eye Chilli is
A)
Capsicum annum
B)
Capsicum baccatum
C)
Capsicum frutescens
D)
Capsicum chinense
Bird's eye chilli, very pungent small-fruited type, is botanically Capsicum frutescens.
MAS Jr. Grade • 2019 • Paper-II
Azolla is used as biofertilizer as it has
A)
Rhizobium
B)
Cynobacteria
C)
Mychorrhiza
D)
Large quantity of humus
Azolla hosts nitrogen-fixing cyanobacterium Anabaena azollae, used as biofertilizer in rice.
MAS Jr. Grade • 2019 • Paper-II
Ha-NPV is used for the control of
A)
Helicoverpa armigera
B)
Neochetina bruchi
C)
Vicia sativa
D)
None of these
Ha-NPV is Helicoverpa armigera Nuclear Polyhedrosis Virus, a specific biocontrol agent for gram pod borer Helicoverpa armigera.
MAS Jr. Grade • 2019 • Paper-II
The best way to obtain bacteria and virus free plants through tissue culture is-
A)
Micro propagation
B)
Seed germination after gamma irradiation
C)
Shoot tip culture
D)
All of these
Meristematic shoot tip culture eliminates virus and bacteria as pathogen titre is nil in apical dome.
MAS Jr. Grade • 2019 • Paper-II
Dealing with the LD50 rating, a herbicide with a label warning of “danger poison” would have what type of toxicity rating?
A)
High
B)
Moderate
C)
Low
D)
Slight
Danger-Poison signal word indicates Category I high toxicity with low LD50 value 0-50 mg/kg oral.
MAS Jr. Grade • 2019 • Paper-II
Which type of earthworm is used for vermicomposting?
A)
Vermicilli
B)
Epigeic
C)
Endogeic
D)
None of these
Epigeic surface-dwelling earthworms like Eisenia fetida and Eudrilus eugeniae are used for vermicomposting due to high organic matter feeding.
MAS Jr. Grade • 2019 • Paper-II
In which one of the following insect has the outbreak of maize crops been noticed recently?
A)
Stem fly Warm
B)
Stem borer of maize
C)
Fall Army Warm
D)
Maize Worm
Fall Armyworm (Spodoptera frugiperda) recently invaded Indian maize causing severe outbreak since 2018.
MAS Jr. Grade • 2019 • Paper-II
Little leaf disease of Brinjal is transmitted by an insect vector
A)
Leaf hopper
B)
Butterfly
C)
Aphid
D)
None of the above
Little leaf of brinjal is transmitted by leaf hopper vector Hishimonus phycitis.
MAS Jr. Grade • 2019 • Paper-II
What is transition period?
A)
3-year transition period from conventional to organic management
B)
4-year transition period from conventional to organic management
C)
2-year transition period from conventional to organic management
D)
1-year transition period from conventional to organic management
Under NPOP conversion/transition period from conventional to organic is 2 years for annual crops and 3 years for perennials, commonly referred to as 3-year transition.
MAS Jr. Grade • 2019 • Paper-II
Match the following balanced diet for a moderately active male adult in amount gram per day? List A: A. Cereals & Millets, B. Pulses (legumes), C. Fruits, D. Fats and Oils; List B: 1. 80, 2. 400, 3. 30, 4. 100
A)
3 4 1 2
B)
2 4 1 3
C)
2 1 4 3
D)
3 1 4 2
ICMR balanced diet for moderately active male: Cereals & Millets 400g (2), Pulses 80g (1), Fruits 100g (4), Fats & Oils 30g (3) => 2-1-4-3.
MAS Jr. Grade • 2019 • Paper-II
Which of country is the largest producer of fruit and vegetables?
A)
Brazil and China
B)
China and China
C)
China and India
D)
China and America
China is the world's largest producer of both fruits and vegetables, followed by India for both.
MAS Jr. Grade • 2019 • Paper-II
Which is major component of Bordeaux mixture?
A)
Copper Sulphate
B)
Sodium Chloride
C)
Borax
D)
Calcium Chloride
Bordeaux mixture is copper sulphate + lime; copper sulphate is the main fungicidal component.
MAS Jr. Grade • 2019 • Paper-II
Which authority is the first who promoted organic agriculture in India?
A)
APEDA
B)
CSIR
C)
ICAR
D)
UGC
APEDA under Ministry of Commerce was the first authority to promote organic agriculture in India through NPOP for export promotion.
MAS Jr. Grade • 2019 • Paper-II
“Whiptail” is a malady associated with the nutrient
A)
Molybdenum
B)
Manganese
C)
Zinc
D)
Boron
Whiptail disorder in cauliflower/cucurbits is due to molybdenum deficiency causing strap-like leaves.
MAS Jr. Grade • 2019 • Paper-II
Which of these is NOT considered an insect growth regulator?
A)
Synthetic pyrethroid
B)
Juvenile hormone analogue
C)
Chitin inhibitor
D)
Ecdysteroid
Synthetic pyrethroid is not an insect growth regulator; JH analogues, chitin inhibitors and ecdysteroids are IGRs.
MAS Jr. Grade • 2019 • Paper-II
Match List I (Disease) with List II (Crop) and select the correct answer using the codes given below the lists: List A: A. Late blight, B. Loose Smut, C. Blast, D. Fire Blight; List B: 1. Wheat, 2. Potato, 3. Pear, 4. Rice
A)
3 4 1 2
B)
2 4 1 3
C)
2 1 4 3
D)
3 1 4 2
Late blight – Potato, Loose smut – Wheat, Blast – Rice, Fire blight – Pear, matching code 2-1-4-3.
MAS Jr. Grade • 2019 • Paper-II
Agricultural and processed products development Authority (APEDA) was established in
A)
1980
B)
1986
C)
1985
D)
1990
APEDA was established under APEDA Act 1985 and came into effect on 13 February 1986 for development and export of agricultural and processed products.
MAS Jr. Grade • 2019 • Paper-II
The amount of carbendazim 50% wettable powder required to prepare 1000 ppm solution is
A)
1g in 1 litre of water
B)
0.1g in 1 litre of water
C)
0.2g in 1 litre of water
D)
2g in 1 litre of water
1000 ppm = 1g a.i./L; with 50% WP you need 2g product to get 1g a.i., hence 2g per litre.
MAS Jr. Grade • 2019 • Paper-II
Which of these is NOT considered an insect growth regulator?
A)
Synthetic pyrethroid
B)
Juvenile hormone analogue
C)
Chitin inhibitor
D)
Ecdysteroid
Synthetic pyrethroids are conventional neurotoxic insecticides; IGRs are juvenile hormone analogues, ecdysteroids and chitin synthesis inhibitors.
