Description : An associated weed in lucerne and potato a). Chicory b). Swine grass (Coronopus didymus) c). Striga d). Both a and b
Last Answer : d). Both a and b
Description : Weed which reduces the Juice quality of sugarcane is a). Aeginitia indica b). Striga litura c). Both a and b d). None of these
Last Answer : c). Both a and b
Description : . Trap crop for striga is a). Sunflower b). Cotton c). Cowpea d). All of these
Last Answer : d). All of these
Description : Weed eradication is rare but practiced in a). Lantana b). Saccharum sp c). Striga sp d). All of these
Description : A recent noxious weed of Tamil Nadu a). Wild brinjal b). Striga c). Lantana d). Cuscutta
Last Answer : a). Wild brinjal
Description : A parasite in lucerne a). Cuscuta sp b). Orobanche sp c). Striga sp d). All of these
Last Answer : a). Cuscuta sp
Description : Striga densiflora and Orobanche aegyptica are the weeds of a). Rice and Wheat b). Sugarcane and Mustard c). Wheat and Sugarcane d). Oats and Rice
Last Answer : b). Sugarcane and Mustard
Description : Which one of the following is a C3 plant? (A)Wheat (B) Maize (C) Pearlmillet (D) Sorghum
Last Answer : (A)Wheat
Description : Among the following crop rotations, which is good for increasing soil Nutrient status? 1) Rice-Wheat 2) Groundnut-Wheat 3) Pearlmillet-Wheat 4) Sorghum-Wheat
Last Answer : 2) Groundnut-Wheat
Description : Inter-culture with bullocks in standing water a). Rice b). Sorghum c). Pearlmillet d). all
Last Answer : a). Rice
Description : . Herbicide effectively controls Saccharum and Sorghum halepense only at pre flowering stage a). Diuron b). Atrazine c). Amitrole d). Both a and c
Last Answer : d). Both a and c
Description : In which of the weed the underground sys tem is located deeper than one metre? a). Cyperus rotundus b). Sorghum halepense c). Pluchea lanceolata d). All of these
Description : Weed species wgich can tolerate so larisation effect a). Phalaris minor b). Sorghum halepense c). Alopecurus myosuroides d). Lolium temulentum
Last Answer : b). Sorghum halepense
Description : .Which indicator plant is used in germi nation test of bioassay? a). Cucumber b). Sorghum c). Oat d). All
Last Answer : d). All
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 crop is an indicator plant for the bio assay of Triazines and Aliphatics? a). Sugarbeet b). Sorghum c). Cotton d). Mustard
Last Answer : a). Sugarbeet
Description : Which crop exhibit direct allelopathy? a). Sorghum b). Maize c). Lentil d). Alfalfa
Last Answer : a). Sorghum
Description : . A crop has residual allelopathy on wheat a). Rice b). Lentil c). Maize d). Sorghum
Last Answer : b). Lentil
Description : .Which among the following crops ex hibits allo-allelopathy? a).Maize b). Sorghum c). Rye d). All
Description : .Strigol, a witch weed stimulant isolated from the root exudates of a). Cotton b). Sorghum c). Alfaalfa d). Cowpea
Last Answer : a). Cotton
Description : Weed responsible for forest fire is a). Aligator weed b). Sorghum halepense c). Lantana d). Amaranthus
Last Answer : c). Lantana
Description : C4 weed a). Avena fatua b). Lolium temulentum c). Sorghum halepense d). Phalaris minor
Last Answer : c). Sorghum halepense
Description : Which is the ‘odd one’ based on mimicry a). Wild rice in rice b). Wild sorghum in sorghum c). Wild sugarcane in sugarcane d). Itch grass in upland rice
Last Answer : d). Itch grass in upland rice
Description : Parthenium is a very serious problem in a). Tamil Nadu b). Rajesthan c). Jammu and Kashmir d). Maharastra
Last Answer : d). Maharastra
Description : Hybrids varieties of Pearlmillet
Last Answer : Ans.HB- 1 to 5 and Pusa 23.
Description : 1 st Hybrid variety of Pearlmillet
Last Answer : Ans.HB-1 in 1965
Description : The seed rate of Pearlmillet
Last Answer : Ans.5 kg/ha
Description : Pearlmillet is also known as
Last Answer : Ans.Bulrush millet
Description : Botanical name of Pearlmillet
Last Answer : Ans.Pennisetum glaucum
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 : Total Stem Parasite Weed of onion is? A. Orabanche cernua B. Striga lutea C. Cuscuta chinensis D. None
Last Answer : C. Cuscuta chinensis
Description : Striga is — parasite a. Complete root b. Partial root c. Complete stem d. Partial stem
Last Answer : b. Partial root
Description : Which of the following is complete root parasite a. Cuscuta b. Loranthus c. Striga d. Orobanche
Last Answer : d. Orobanche
Description : The partial root parasite a). Cuscuta b). Loranthus c). Striga d). Orobanche
Last Answer : c). Striga
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
Description : The ecological phenomenon of plant-plant interference a). Competition b). Allelopathy c). Both d). None
Last Answer : c). Both
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 : The most commonly used herbicide in rub ber plantation a). Amitrole T b). Paraquat c). Both d). None
Description : Alachlor is an effective pre-emergence her bicide in ______ a). Maize b). Soybean c). Both d). None
Description : Which of the weeds are rapidly controlled by MCPA than 2,4-D a). Nutsedge b). Canada thistle 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
Description : Herbicides of which group are generally incorporated in soil? a). Carbamate b). Dinitroaniline c). Triazine d). Both a and b
Description : MCPA was developed during 1945 in Eng land by a). W.G. Templeman b). W.A. Sexton c). Both of them d). None of these
Last Answer : c). Both of them
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
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 : . Herbicide deactivation of selectivity in plants is achieved by a). Herbicide metabolism b). Herbicide conjugation c). Both a and b d). None of these