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 : 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 : 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 : The crops known for autotoxicity a). Lucerne and wheat b). Berseem and oats c). Rice and soybeans d). None of these
Last Answer : a). Lucerne and wheat
Description : . A crop has residual allelopathy on wheat a). Rice b). Lentil c). Maize d). Sorghum
Last Answer : b). Lentil
Description : What is the Critical Period of Crop-Weed Competition for Upland rice condition?
Last Answer : Ans.Entire period of crop growth
Description : Competitive ability of the crops in decreas ing order a). barley>rye>wheat >oats b). oats>wheat> rye> barley c). rye>barley>oats> wheat d).wheat>oats>barley >rye
Last Answer : a). barley>rye>wheat >oats
Description : Scheme for testing the field performance of hrbicidies in rice, wheat and sugarcane in different states of India by ICAR was initi ated in a). 1948 b). 1952 c). 1956 d). 1960
Last Answer : b). 1952
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 : 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 : Among the herbicide resistant crops, which crop was the most dominant transgenic crops in 2010 a).Soybean b). Cotton c). Maize d).Sugarbeet
Last Answer : a).Soybean
Description : .Phenolic acid as root exudates of which crop has detrimental effects on wild mustard? a). Wheat b). Oats c). Chickpea d). a & b
Last Answer : d). a & b
Description : Root exudates of which crop has allelo pathic effect on Chenopodium album? a). Wheat b). Oat c). Pea d). All
Last Answer : d). All
Description : Wheat and bajra have critical period of crop-weed competition a).10-20 days b).15-30 days c). 30-45 days d). 20-40 days
Last Answer : c). 30-45 days
Description : Persistence herbicides pose hazard in soil when a). High persistence herbicides are used b). Crop failure necessitate re-planting c). Susceptible crop follows a short crop d). All
Description : . A non-competitive crop requiring weed free period of three or more months a). Maize b). Rice c). Soybean d). Onion
Last Answer : d). Onion
Description : Propanil has to be applied to rice crop at a). One leaf stage b). 2-3 leaf stage c). 4 leaf stage d). None of these
Last Answer : b). 2-3 leaf stage
Description : Application of organophosphorus group of pesticides along with which herbicides cause injury to crops a). Triazines b). Ureas c). Both d). None
Last Answer : c). Both
Description : Herbicide currently being used with herbicide resistant crops a). Glyphosate b). Glufosinate c). Both d). None
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 : Herbicide resistant crops are called as a).Transgenic b). Non transgenic c). Both transgenic and non trans genic d). None of the above
Last Answer : c). Both transgenic and non trans genic
Description : . Commonly used post-emergence herbicide in wheat a). 2,4-D b). Isoproturon c). Atrazine d). Both a and b
Last Answer : d). Both a and b
Description : . Mimicry weed in wheat field a). Phalaris minor (Canary grass) b). Wild oat c). Both a and b d). None of these
Last Answer : c). Both a and b
Description : When is upland rice sown? -SST 10th
Last Answer : The upland rice is sown without irrigation in the months of March-April. The crop becomes mature within six months, and the harvesting takes place in September-October. This variety of rice ... usually grown at the higher elevations. The production of crop is confined totally to local consumption.
Description : An alternate host of root knot nematode in vegetables a). Brassica kaber b). Cleome viscosa c). Carthamus oxyacantha d). All of these
Last Answer : d). All of these
Description : Early post-emergence treatment is followed in a). Potato b). Sugarcane c). Both a and b d). Rice
Description : Integrated weed management practices that a). Enhance crop competitive ability b). Decrease weeds ability to reduce yield c). Practices that eliminate weeds from an area d). Both a and b e). Both a and c
Description : Herbicide residue in soil are undesirable because of a). Injury to sensitive crops b). Accumulate in the produce c). Inhibit soil micro-organisma d). All
Description : .Which among the following crops ex hibits allo-allelopathy? a).Maize b). Sorghum c). Rye d). All
Description : High levels of Adoption of herbicide resistant crops have dramatically ____________ the use of herbicides a).I ncreased b). Decreased c). No effect d). None of the above
Last Answer : a).I ncreased
Description : . Transgenic crops were first introduced in a).1985 b).1983 c).1993 d).1990
Last Answer : d).1990
Description : Competitive crops such as corn or soybean require weed-free period of a). 2 months b). 3-4 weeks c). 3 months d). None of the above
Last Answer : b). 3-4 weeks
Description : Noncompetitive crops such as onion or garlic require a weed-free period of a). 3 months or more b). One month c).10 days d). None of the above
Last Answer : a). 3 months or more
Description : Which of the following branches of horticulture is wrongly matched?(Agriculture MCQ) [a] Pomology - Cultivation of flower crops [b] Olericulture - Cultivation of Vegetables [c] Spices Crop - ... Medicinal and aromatic plants - Cultivation of medicinal and aromatic crops [e] None of the above
Last Answer : [e] None of the above
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 : Auto allelopathy existed in a). Wheat b). alfaalfa c). cowpea d). all
Last Answer : d). all
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 : 2,4-d to wheat is effective when it is ap plied at a). 15 DAS b). 20-25 DAS c). 25-30 DAS d). 45 DAS
Last Answer : c). 25-30 DAS
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 : A nitrogen fixing weed species in wheat a). Lathyrus aphaca b). Medicago denticulata c). Vicia sativa d). All
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 : Weed intensity if number of weeds is 110/m2 and wheat plants are 90/m2. a). 55% b). 110% c). 22.5% d). 77.5%
Last Answer : a). 55%
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
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 : Consumptive use of wheat is a). 800 mm b). 679 mm c). 979 mm d). 479 mm
Last Answer : d). 479 mm
Description : Which of the following gives effective control of Phalaris minor in wheat a). Hand weeding b). Inter-cultivation c). Flaming d). Clodinafop-proparygyl
Last Answer : d). Clodinafop-proparygyl
Description : The effective control of morphological similar Phalaris minor in wheat is achieved with a). 2,4-D b). Glyphosate c). Metsulfuron - methyl d). Isoproturon
Last Answer : d). Isoproturon
Description : Compare the geographical conditions, required of the two major cereal crops in India, rice and wheat. -SST 10th
Last Answer : Two major cereal crops of India are - Rice and wheat Geographical condition for growing Rice:- Temperature - high temperature above 25° C- and high humidity. Rainfall - Above 100 cm annually or assured ... - 50 to 75 cm annual rainfall Soil - Alluvial soil Region - U.P., Haryana, Punjab
Description : With reference to the area devoted to its cultivation pulses hold the third place in India. Which crops occupy the first and second places respectively? (a) Rice and Wheat (b) Rice and Cotton (c) Jowar and Cotton (d) Jowar and Bajara
Last Answer : Ans: (a)