Description : An important benzoic acid herbicide a).Dicamba b). 2,4-D c). Atrazine d). None of these
Last Answer : a).Dicamba
Description : .Sorghum is bioassay species for which group of herbicide? a). Dinitroanilines b). Dicamba c). Triazines d). a & b
Last Answer : d). a & b
Description : Which herbicide belong to pyridines group ? a). Picoloram b). Dicamba c). Chloramben d). Imazethapyn
Last Answer : a). Picoloram
Description : A amino acid derivative a).Paraquat b). Glyphosate c). 2,4-D d). None of these
Last Answer : b). Glyphosate
Description : Herbicides inhibiting amino acid synthesis a). Imadazolinone b). Sulfonamide c). aminoacid derivatives d). all
Last Answer : d). all
Description : Amino acid synthesis inhibitors a). Sulfonyl ureas b). Amides c). Triazines d). all
Last Answer : a). Sulfonyl ureas
Description : The mode of action of paraquat is a). Amino acid synthesis inhibition b). Pigment inhibition c). Cell membrane disruption d). Shoot inhibition
Last Answer : c). Cell membrane disruption
Description : The mode of action of Isoproturon is a). Root inhibitor b). Shoot inhibitor c). Photosynthesis inhibition d). Amino acid inhibition
Last Answer : c). Photosynthesis inhibition
Description : The mode of action of dinitroanilines a). Shoot growth inhibitor b). Lipid inhibitor c). Root growth inhibitor d). Amino acid inhibitor
Last Answer : c). Root growth inhibitor
Description : Which herbicide is amino acid synthesis inhibitor a). Glyphosate b). 2,4-D c). MCPA d).Atrazine
Last Answer : a). Glyphosate
Description : What is the mode of action of sulfonamide herbicide a). Amino acid synthesis inhibitor b). Photosynthesis inhibitor c). Lipid inhibitor d). Pigment inhibitor
Last Answer : a). Amino acid synthesis inhibitor
Description : The Punjab government has banned this chemical compound which is consider as a Group 2A cancer-causing material. a. Dicamba b. Glyphosate c. Atrazine d. Chlorpyrifos
Last Answer : b. Glyphosate
Description : What is the chemical name of MCPA ? a).2-(4-chloro-2 methylphenoxy acid b). 4-(4 chloro-2 methylphenoxy acid c). 4- chloro-2 –methylphenoxy acid d). 2,4-dichlorophenoxy acid
Last Answer : Deep germinating weed seeds are at depth of
Description : A selectivity achieved due to manipulation of time of application is called a).Biochemical b). Chronological c). Chemical d). Physical
Last Answer : b). Chronological
Description : Selectivity achieved due to changes in functional group is called a). Physical b). Biological c). Chemical d). Chronological
Last Answer : d). Chronological
Description : The _____________ selectivity is an ex ample of true selectivity a). Chronological b). Biochemical c). Chemical d). None
Last Answer : b). Biochemical
Description : Commonly used chemical fertilizer to con trol submerged weeds and water bloom non -selectively a). Anhydrous ammonia b). Ammonium sulphate c). Ammonium nitrate d). Urea
Last Answer : d). Urea
Description : Ammonium nitrate acts as chemical stimu lant to control a). Wild oats b). Eleusine indica c). Echinochloa colona d). All of these
Last Answer : d). All of these
Description : Chemical control of Parthenium hys terophorus a). Metsulfuron methyl b). Metribuzin c). Atrazine d). All
Last Answer : d). All
Description : Mimic type of research, Reseacher looks for a). Studies the way natural products work & then tries to make mole cules that act similarly b). New chemical enties c). None of the above d). Loopholes in patents
Last Answer : a). Studies the way natural products work & then tries to make mole cules that act similarly
Description : Metto type of research, Reseacher looks for a). Loopholes in patents b). Studies the way natural products work & then tries to make molecules that act similarly c). None of the above d). New chemical entities
Last Answer : a). Loopholes in patents
Description : In empirical type of research, Re seacher looks for a).New chemical entities b).Loopholes in patents c).Studies the ways natural products work & then tries to make molecules that act similarly d).None
Last Answer : a).New chemical entities
Description : A transport process in herbicide removal a).volatilization b).photo-decomposition c).chemical decomposition d).microbial degradation
Last Answer : a).volatilization
Description : The major means for herbicide dissipation is which type of following degradation a). Microbial b). Chemical c). photo d). Physical
Last Answer : a). Microbial
Description : Foundation for phenomenal achievement in modern chemical weed management a). Safeners b). Adjuvants c). Selectivity d). Herbicide combinations e). None
Last Answer : c). Selectivity
Description : The environment friendly weed control method a). Biological b). Physical c). Chemical d). None
Last Answer : a). Biological
Description : The natural product explored as commercial herbicide a). glufosinate b). dicamba c). cinmethylin d). all
Description : Growth regulating herbicides that act simi lar to that of endogenous auxin (IAA) a). Benzoic acid b). pyridine carboxylic acid c). quinoline carboxylic acid d). All
Description : Root exudates of wheat and oats which has detrimental effects on wild mustard con tain a). Phenolic acid b). Alkaloids c). Sulphides d). Lactones
Last Answer : a). Phenolic acid
Description : .Phenolic acid as root exudates of which crop has detrimental effects on wild mustard? a). Wheat b). Oats c). Chickpea d). a & b
Description : .Which group of allelochemicals con tains Quinones and Coumarines? a). Flavinoids b). Cinnamic acid derivatives c). Tannins d). None
Last Answer : b). Cinnamic acid derivatives
Description : Which herbicide group is photosynthesis inhibitor? a). Nitriles b). Carbamate c). Dicarboxylic acid d). Dinitroanilines
Last Answer : a). Nitriles
Description : Which herbicide group inhibitor the photosynthesis reaction ? a). Thiocarbamates b). Triazines c). Cyclohexanedione d). Benzoic acid
Last Answer : b). Triazines
Description : Active toxic material present in the formulation is a). Acid equivalent b). Phytochemical c). Active ingredient d). Surfactant
Last Answer : c). Active ingredient
Description : If relative frequency, abundance and density values are 6, 5 and 4, respec tively, then summed dominance ratio is a). 15 b). 5 c). 7.5 d). 3
Last Answer : b). 5
Description : Butachlor has to be applied to control weeds in upland rice at a). Immediately after sowing b). 2 DAS c). 6-8 DAS d). 15 DAS
Last Answer : d). 15 DAS
Description : How many times atrazine is more soluble than simazine? a). 1 b). 2 c). 4 d). 6
Last Answer : d). 6
Description : How many modes of action commer cialized between 1970 and 1985 a).6 b).9 c).10 d).12
Last Answer : d).12
Description : In a 100 quadrat study of 1 sqm each Cyperus rotundus was found in 80 quadrats with overall of 5640 individuals. The frequency (%), abun dance and density (m2) would be a). 70.5, 80.0 and 56.4 b). 56.4, 70.5 and 80.0 c). 80.0, 70.5 and 56.4 d). 80.0, 56.4 and 70.5
Last Answer : c). 80.0, 70.5 and 56.4
Description : If the gross returns from an enterprise are INR 30000 and the net returns INR 20000, the benefit cost ratio based on net gain would be a). 3.0 b). 2.0 c). 1.0 d). 1.5
Last Answer : b). 2.0
Description : Application of which herbicide at 5-10% of emergence in potato is more common in India? a). Paraquat b). Diquat c). EPTC d). Both a and b
Last Answer : d). Both a and b
Description : Isoproturon to wheat is effective at a). 15 DAS b). 25-30 DAS c). 45- DAS d). 5 DAS
Last Answer : b). 25-30 DAS
Description : Effective rate (kg/ha) of 2,4-D for weed control a). 0.2-0.5 b). 0.5-1.0 c). 2 d). 5
Last Answer : b). 0.5-1.0
Description : At sub lethal dose which of the herbicides improves colour of the apple a). 2,4-D b). 2,4,5-T c). MCPA d). All of these
Last Answer : b). 2,4,5-T
Description : Which of the herbicides are classified as highly toxic a). Paraquat and diquat b). DNBP and DNOC c). 2,4,5-T and PCP d). All of these
Description : Amount of Alachlor 50% EC for spray ing 12 ha maize field (given the dose 1.5 kg ai/ha) a). 36 kg b). 18 kg c). 54 kg d).12 kg
Last Answer : a). 36 kg
Description : Intermediate rate of benchmark dose a).1/10 b).1/8 c).1/5 d).1/7
Last Answer : a).1/10
Description : Volume of spray fluid in ultra low vol ume spraying a).300-500 l/ha b).2-5 l/ha c).25-50 l/ha d).100-150 l/ha
Last Answer : b).2-5 l/ha
Description : Volume of spray fluid in ultra low vol- ume spraying a).300-500 l/ha b).2-5 l/ha c).25-50 l/ha d).100-150 l/ha
Description : Interaction between the herbicide 2,4- D and the herbicide 2,4,5-T is a). antagonistic b). synergetic c). additive d). Enhancement
Last Answer : a). antagonistic