Description : 2,4-D was developed during 1945 in USA by a). P.W. Zimmerman b). A.E. Hitchkock c). Both a and b d). None of these
Last Answer : c). Both a and b
Description : Which of the weeds are rapidly controlled by MCPA than 2,4-D a). Nutsedge b). Canada thistle c). Both d). None
Last Answer : c). Both
Description : 4. Reverse metabolism induce the suscepti bility to weeds by a). 2,4-D b). MCPA c). Both a and b d). None of these
Description : . Which is the widely used herbicide to con trol broadleaved weeds in winter grains? a). 2,4-D b). MCPA c). Both a and b d). Atrazine
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 : First introduced organic herbicide in the world is a). Dinoseb b). 2,4-D c). MCPA d). All of these
Last Answer : a). Dinoseb
Description : Microbial breakdown of phenoxy herbicides such as 2,4-D and MCPA is enhanced by addition of a). Nitrate b). Sulphate c). Phosphate d). Chlorate
Last Answer : c). Phosphate
Description : Which herbicide mode of action is pigment inhibitor? a). MCPA b). Fluchloralin c). Chlomazone d). 2,4-D
Last Answer : c). Chlomazone
Description : Which herbicide’s mode of action is root growth inhibition? a). Fluchloralin b). MCPA c). Glyphosate d). Alachlor
Last Answer : d). Alachlor
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 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 : Three-phased integrated technology including cutting, spray of glyphosate and land utilization as per its capability for the management of Lantana camara was developed at a). Jabalpur, MP b). Palampur, HP c). Jaipur, Rajesthan d). Hisar, Haryana
Last Answer : b). Palampur, HP
Description : The first genetically modified plants, the soybean resistant to glyphosate was developed during a). 1983 b). 2003 c). 1993 d). 1973
Last Answer : a). 1983
Description : The process by which a molecule is discovered, developed and formulated into a pesticide product is a). Tenuous and risky b). Mimic c). Both d). None
Last Answer : a). Tenuous and risky
Description : Transgenic herbicide resistant crops were developed using a).Conventional breeding b).Genetic engenering c).None d).Both
Last Answer : d).Both
Description : Non transgenic herbicide resistant crops were developed using a).Conventional breeding b).Genetic engineering c).None of the above d).Both
Last Answer : a).Conventional breeding
Description : . Common weed in pasture land a). Tephrosia procumbens b). Boerhaavia diffusa c). Both a and b d). None of these
Description : The first non-transgenic HRC such as triaz ine resistant canola was developed in a). 1995 b). 2000 c). 1997 d). 1984
Last Answer : d). 1984
Description : .Collego was developed to control a). Aeschynomene indica b). Eichhornia c). Cuscuta d). Morrenia odorata
Last Answer : a). Aeschynomene indica
Description : .First mycoherbicide developed by Ab bott Laboratories, USA was a).Biosedge b). Devine c). Collego d). Biomal
Last Answer : b). Devine
Description : Phalaris minor has developed resistance to isoproturon in Punjab and Haryana in a). Rice b). Wheat c). Sugarcane d). Cotton
Last Answer : b). Wheat
Description : est weight (g) of Phalaris minor is a). 2 b). 10 c). 15 d). 20
Last Answer : a). 2
Description : est weight of barnyard grass seeds is about _____ g a). 20 b). 10 c). 1.4 d). 15
Last Answer : c). 1.4
Description : Weed control index if weed dry weight of a treatment is 200 g/m2 and that of weed check was 600 g/m2 a). 33.3% b). 66.7% c). 25% d). None of these
Last Answer : b). 66.7%
Description : A post-emergence herbicide in Soy bean a). Pendimethalin 1.2 kg/ha b). Quazalofop – ethyl 60 g/ha c). Fluchloralin 0.9 kg/ha d). Thiobencarb 1.50 kg/ha
Last Answer : b). Quazalofop – ethyl 60 g/ha
Description : A broad-leaf herbicide in wheat a). Carfentrazone – ethyl 20 g/ha b). Metsulfuron – methyl 4 g/ha c). 2,4-D 500 g/ha d). All
Last Answer : d). All
Description : Herbicidal control for isoproturon resis tance Phalaris minor in wheat a). Sulfosulfuron 25 g/ha b). Clodinafop-propargyl 60 g/ha c). Penoxaden 50 g/ha d). All
Description : Amount of Topic 10% for 4000 m2 if rate of clodinafop is 60 g/ha. a). 600 g b). 480 g c). 300 g d). 240 g
Last Answer : d). 240 g
Description : To prepare soils for the bioassay, her bicides get inactivated by a). Darco G-60 b). Activated charcoal c). a & b d). None
Last Answer : c). a & b
Description : What are the units of LD50? a). mg/kg body weight b). g/g body weight c). kg/g of body weight d). mg/g body weight
Last Answer : a). mg/kg body weight
Description : Which of the following herbicides will be tightly bound to the soil? a). Trifluralin KOC(mL/g)= 7000 b). Paraquat KOC(mL/g)= 10,00,000 c). Glyphosate KOC(mL/g)= 24,000 d). Alachlor KOC(mL/g)= 124
Last Answer : b). Paraquat KOC(mL/g)= 10,00,000
Description : Test weight of Phalaris minor is a).10 g b).15 g c). 7g d). 2 g
Last Answer : d). 2 g
Description : Hamming codes was developed in _ a 1953 b. 1950 c. 1945 d. 1956
Last Answer : b. 1950
Description : First electronic programmable computer was developed in: a) 1943 b) 1947 c) 1945 d) None of These
Last Answer : a) 1943
Description : . Which are required during trialling to ensure that the effectiveness of the her bicide is tested against all pests a). Plant pathologists b). Entomologists c). Both Plant pathologists and Ento mologists d). None
Last Answer : c). Both Plant pathologists and Ento mologists
Description : Basal applications will be more effective during which stage a). active b). mature c). Dormant d). None
Last Answer : c). Dormant
Description : Constant physical agitation of the spray liquid during field operations can be minimised by adding a). Emulsifiers b). Coupling agents c). Surfactants d). Humicants
Last Answer : a). Emulsifiers
Description : The first controlled nuclear chain reaction took place in what year? w) 1895 x) 1910 y) 1942 z) 1945
Last Answer : ANSWER: Y -- 1942
Description : A ceremonial weed a). Asparagus racemosus (Shatawari) b). Cynodon dactylon (Dhoob ghaas) c). Both a and b d). Digitaria sanguinalis
Description : To control broad-leaved weeds in barley, which of the herbicide is most suitable a). 2,4-D b). Metsulfuron c). Alachlor d). Both a and b
Last Answer : d). Both a and b
Description : The ecological phenomenon of plant-plant interference a). Competition b). Allelopathy c). Both d). None
Description : Herbicides disrupting cell membranes a). Bipyridilliums b). diphenylethers c). Both d). Ureas
Description : From site of uptake to site of action, fluazi fop-butyl move in a). water conducting stream b). sap conducting stream c). Both d). None
Description : In India, Striga is a problem of a). Sorghum b). Pearlmillet c). Both d). None
Description : The most commonly used herbicide in rub ber plantation a). Amitrole T b). Paraquat c). Both d). None
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
Description : Alachlor is an effective pre-emergence her bicide in ______ a). Maize b). Soybean c). Both d). None
Description : Application of organophosphorus group of pesticides along with which herbicides cause injury to crops a). Triazines b). Ureas c). Both d). None
Description : Inhibition of electron transfer in photosys tem II is the reason for herbicide action in a). Nitriles b). Ureas c). Both a and b d). None
Last Answer : d). None
Description : Which altra low volume sprayer is used for controlled droplet application a). Herbi sprayer b). Micron herbi sprayer c). Both a and b d). None of these