Description : A weed with a balloon structure for effective dissemination a). Physalis minima b). Avena fatua c). Phalaris minor d). Amaranthus viridis
Last Answer : a). Physalis minima
Description : A weed with a trailing stem a).Convolvulus arvensis b). Digitaria sanguinalis c). Cuscuta sp d). Cynodon sp
Last Answer : a).Convolvulus arvensis
Description : Inter-culture with bullocks in standing water a). Rice b). Sorghum c). Pearlmillet d). all
Last Answer : a). Rice
Description : Flooding – a worldwide crop husbandry method of controlling weeds in a). Maize b). Sugarcane c). Buckwheat d). Rice e).None
Last Answer : d). Rice
Description : C4 weed a). Avena fatua b). Lolium temulentum c). Sorghum halepense d). Phalaris minor
Last Answer : c). Sorghum halepense
Description : Dredging is most effective treatment for controlling a). Parasitic weeds b). Lantana c). Agrestals d). Aquatic weeds
Last Answer : d). Aquatic weeds
Description : Post-plant tillage helps in a). Mixing of manures b). Control of weeds c). Soil and water conservation d). None e). All
Last Answer : e). All
Description : Besides providing N Azolla is used for weed control in a). Wheat b). Rice c). Castor d). Linseed
Last Answer : b). Rice
Description : Weed control aims to putting down weed infestation a). Already present b). a + future infestations c). b + introduction from the adjacent fields d). Combining the available techniques in the optimum level
Last Answer : a). Already present
Description : A system approach based on whole land use planning a). Weed eradication b). Weed control c). Weed prevention d). None
Last Answer : d). None
Description : A farming practice influencing weed floristic diversity a). Fertility manipulation b). Crop rotation c). Intercropping d). All e). None
Last Answer : d). All
Description : A weed not controlled by clodinafop propargyl in wheat a). Poa annua b). Phalaris minor c). Avena ludoviciana d). Lolium temulentum
Last Answer : a). Poa annua
Description : The most common weed in wheat a). Avena ludoviciana b). Echinochloa colona c). Panicum dichotomiflorum d). Eleusine indica
Last Answer : a). Avena ludoviciana
Description : The herbicidal activity of 2,4-D at the first time was reported by a). Hammer and Tukey (1944) b). Zimmernam and Hitchcock (1942) c). Nutman and Blackman (1945) d). None
Last Answer : b). Zimmernam and Hitchcock (1942)
Description : The first chemical shown to have herbicidal activity a). 2,4-D b). Bordeux mixture c). Paraquat d). 2,4- DB
Last Answer : b). Bordeux mixture
Description : Practices using direct radiant energy of the sun a). Soil solarization b). Micro-waves c). Flaming d). All
Last Answer : a). Soil solarization
Description : A companion crop a). Hairy vetch b). Winter rye c). Cowpea d). All
Description : The first rule of weed prevention a). Regular survey to identify new weeds b). Destruction of weeds before they set seed c). Clean seed d). Clean farm equipments and irrigation water
Last Answer : c). Clean seed
Description : Bioagent for controlling Parthenium hysterophorus a). Bactra verutana b). Zygogramma bicolorata c). Chrysolira d). Flea beetle
Last Answer : b). Zygogramma bicolorata
Description : Spudding involving hand weeding/ hoeing added by a sharp edged sickle is most common in a). Wheat b). Sugarcane c). Sesame d). Rice
Description : Azolla pinnata is a). a fern b). an algae c). a gymnosperm d). an angiosperm
Last Answer : a). a fern
Description : Eradication is possible in following weed situations a). Ageratum conyzoides b). Phalaris minor c). Parthenium hysterophorus d). Lantana
Last Answer : d). Lantana
Description : Successful weed management is based on a). Knowledge on weed biology b). Survey on the nature of weed problem c). Whole farm planning d). Removal of weeds before flowering i. a & b ii. b & d iii. c & d iv. All
Last Answer : v. All
Description : A weed poisonous to animals and human beings a). Datura metal b). Ammannia baccifera c). Chenopodium d). Urtica sp
Last Answer : a). Datura metal
Description : Dryland weeds usually have a). deep root b). hairyness c). Mucilaginous stem d). all
Last Answer : d). all
Description : Man associated with ‘Horse Hoeing Husbandry’ a). Zimdahl Robert L. b). Molish c). Jethro Tull d). Aspinall and Milthorpe
Last Answer : c). Jethro Tull
Description : The natural product explored as commercial herbicide a). glufosinate b). dicamba c). cinmethylin d). all
Description : Hans Molish is associated with a). Competition b). Eutrophication c). Allelomediation d). Allelopathy
Last Answer : d). Allelopathy
Description : The ‘condition influences’ directly plant ability in exploring resources a). Soil density b). Soil CO2 c). Soil N d). Soil water
Last Answer : a). Soil density
Description : A lowland rice sedge a). Cyperus iria b). Cyperus difformis c). Cyperus esculentus d). All
Description : A sedge with rhizomes a). Commelina obliqua b). Cyperus rotundus c). Scirpus sp d). Eleocharis
Last Answer : b). Cyperus rotundus
Description : A weed with a funnel shaped corolla a). Medicago denticulata b). Vicia sativa c). Convolvulus arvensis d). Scirpus sp
Last Answer : c). Convolvulus arvensis
Description : The partial root parasite a). Cuscuta b). Loranthus c). Striga d). Orobanche
Last Answer : c). Striga
Description : Eichhornia crassips is a representative of a). Free floating b). Rooted floating c). Rooted submerged d). Emergent
Last Answer : a). Free floating
Description : Cultivation of water chestnut (Trapa bispinosa) is abandoned in India due to a). Lantana camara b). Eichhornia c). Mikania micrantha d). Acacia mearnssi
Last Answer : b). Eichhornia
Description : Which of the following causes itching and inflammation a). Ammannia baccifera b). Solanum nigrum c). Urtica sp d). Lantana camara
Last Answer : c). Urtica sp
Description : A weed having spines as adaptations that repel grazing a). Solanum nigrum b). Solanum xanthocarpus c). Parthenium d). Ageratum
Last Answer : b). Solanum xanthocarpus
Description : The first prominent instance of biochemical mimicry based crop associated weed under Indian perspective is a). Saccharum spontaneous in sugarcane b). Phalaris minor in wheat c). Wild rice (Oryza longistaninata) in rice d). Itch grass (Rottboellea cochinchinensis) in upland rice
Last Answer : b). Phalaris minor in wheat
Description : Simple perennials are reproduced by a). Rhizomes b). Tubers c). Corms d). Seeds
Last Answer : d). Seeds
Description : The most systematic method for classifying weeds is based on a). Morphology b). Life history c). Habitat d). Phylogenetic
Last Answer : d). Phylogenetic
Description : Commelina benghalensis bearing shortlived blue coloured flowers is a a). Monocot b). Dicot c). Spermatophyte d). Pteridophyta
Last Answer : a). Monocot
Description : . A ceremonial weed a). Cynodon dactylon b). Datura stramonium c). Tagetus sp d). All of these
Last Answer : d). All of these
Description : A ceremonial weed a). Asparagus racemosus (Shatawari) b). Cynodon dactylon (Dhoob ghaas) c). Nelumbo nucifera (Lotus flower) d). All of these
Description : A ceremonial weed a). Asparagus racemosus (Shatawari) b). Cynodon dactylon (Dhoob ghaas) c). Both a and b d). Digitaria sanguinalis
Last Answer : c). Both a and b
Description : The weed propagated through rhizomes/ root stock a). Agropyron repens b). Cynodon dactylon c). Typha angustata d). All of these
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 : Weed responsible for forest fire is a). Aligator weed b). Sorghum halepense c). Lantana d). Amaranthus
Last Answer : c). Lantana
Description : Egeria - Anacharis, Water Weed
Last Answer : DESCRIPTION: E. densa, commonly known as Anacharis and Water Weed, is an aquatic perennial native to the warm and temperate regions of South America. It is now naturalized in Central and North America, ... new plants. Cuttings may also be taken and rooted. VARIETIES: E. densa; E. canadensis.