Chenopodium is _______ weed ?
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Broad leaves
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Sedges
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Grasses / small leaf
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None
Stellaria redia (chick weed) indicates ?
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Sulphur dioxide pollution
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Nitrogen dioxide pollution
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Phosphorus dioxide pollution
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All of the above
Phalaris minor has a dormancy period of _____ ?
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3-4 years
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4-5 years
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5-6 years
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1-3 years
Weeds propagate by ______ ?
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Stolons
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Suckers
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Tubers
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All of the above
Which of the following is NOT a characteristic of weeds ____ ?
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Late seed setting & early maturity
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Deep root system
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Prolific seed production
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Vegetative propagation
Which of the following is NOT an importance of amaranthus ?
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Used as vegetable
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Adds organic matter
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Used in cottage industries
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All are uses of amaranthus
Statement 1 :- Argemone Mexicana is an annual kharif weed. Statement 2 :- cirsium vulgare is a biennial weed.
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Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is correct
-
Statement 1 is correct and statement 2 is incorrect
Statement 1 :- cuscuta spp is a semi stem parasite on Lucerne crop. Statement 2 :- orabanche spp is a total root parasite on tobacco crop.
-
Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is correct
-
Statement 1 is correct and statement 2 is incorrect
Which of the following weed is used in snake bite?
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Leucas aspera
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Striga spp
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Phyllanthus niruri
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Typha spp
Which of the following is NOT a weed of rice ?
-
Eclipta alba
-
Echinochloa spp
-
Celosia spp
-
None of the above
The common name of Goose grass is:
-
Borreria hispida
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Trianthema portulacastrum
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Portulaca oleracea
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Elusine indica
Family of abutilon indicum weed _____ ?
-
Malvaceae
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Amaranthceae
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Gramineae
-
Compositae
Other than pistia, which weed comes in the same category as floating aquatic weeds?
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Typha
-
Nilumbium
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Polygonum
-
Nymphaea
Statement 1 :- Dormancy in chenopodium album is 20-25 months. Statement 2 :- phalaris minor in wheat shows morphological similarities.
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Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is correct
-
Statement 1 is correct and statement 2 is incorrect
Family of Lantana camara:
-
Verbenaceae
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Papavaraceae
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Graminae
-
Scrophulariaceae
Statement 1 :- Parthenium hysterophorus is a prohibited noxious weed. Statement 2 :- Parthenium hysterophorus is introduced from the USA.
-
Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is incorrect
-
Statement 1 is correct and statement 2 is incorrect
Which of the following is NOT a weed of rice ?
-
Eclipta alba
-
Echinochloa spp
-
Celosia spp
-
None of the above
Family of Parthenium hysterophorus is:
-
Labiatae
-
Asteraceae
-
Oxalidaceae
-
Gramineae
Lemna polyrrhiza is which type of aquatic weed?
-
Submerged weeds
-
Marginal weeds
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Emerged weeds
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Floating weeds
Which of the following weed has economic value in terms of its roots?
-
Cynodon dactylon
-
Cichorium intybus
-
Lantana camera
-
Eichhornia crassipes
Scrophulariaceae is the family of:
-
Striga spp
-
Sorghum halepense
-
Sida spinosa
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All of the above
Argemone & Euphorbia are:
-
Obligate weeds
-
Facultative weeds
-
Both A & B
-
None
Statement 1 :- Family of Physalis minima is Solanaceae. Statement 2 :- Ground cherry is the common name of Physalis minima.
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Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is correct
-
Statement 1 is correct and statement 2 is incorrect
Statement 1 :- Argemone mexicana is used for skin diseases. Statement 2 :- Striga is used for jaundice.
-
Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is correct
-
Statement 1 is correct and statement 2 is incorrect
Amaranthus spp produce _________ seeds/plant:
-
19600
-
196000
-
1960000
-
19600
Statement 1 :- Cyperus rotundus is used for making agarbatti. Statement 2 :- Argemone mexicana is used for making acidic soil alkaline.
-
Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is correct
-
Statement 1 is correct and statement 2 is incorrect
Which of the following weeds maintains soil fertility?
-
Typha
-
Cynodon dactylon
-
Convolvulus arvensis
-
All of the above
Statement 1 :- Chenopodium spp produce 74000 seeds/plant. Statement 2 :- Evasiveness is a property of weeds.
-
Both are incorrect statement
-
Both are correct statement
-
Statement 1 is incorrect & statement 2 is correct
-
Statement 1 is correct and statement 2 is incorrect
Achyranthes is a ___________ weed?
-
Biennial
-
Annual
-
Perennial
-
Both B & A
Which of the following is NOT a limiting factor in crop-weed competition?
-
Space
-
Carbon dioxide
-
Light
-
Moisture