Description : . October sowing of berseem/lucerne pro motes the growth of a). Amaranthus sp b). Trianthema sp c). Both a and b d). None of these
Last Answer : c). Both a and b
Description : Drip-irrigation has been most successful for...... (A) Rice (B) Wheat (C) Berseem (D) Lucerne (E) Grape
Last Answer : (C) Berseem
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 : 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 : The king of fodder crops a] Lucerne b] Berseem c] Paragrassd] Stylosanthes
Last Answer : b] Berseem
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
Last Answer : d). a & b
Description : Complete crop failure is caused in which of the following crops a). Vegetables b). Upland rice c). both a and b d). Wheat
Last Answer : c). both a and b
Description : The first genetically modified plants from Monsanto resistant to glyphosate which achieved widespread success were a). Maize b). Canola c). Cotton d). Soybeans
Last Answer : d). Soybeans
Description : A herbicide tolerant to lucerne and can be applied mixed with seed is a). EPTC b). Benefix c). Pendimethalin d). None of these
Last Answer : a). EPTC
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 : A parasite in lucerne a). Cuscuta sp b). Orobanche sp c). Striga sp d). All of these
Last Answer : a). Cuscuta sp
Description : November sown berseem crop induces the weed a). Chenopodium sp b). Anagallis sp c). Vicia sp d). All of these
Last Answer : d). All of these
Description : Ammonium nitrate acts as chemical stimu lant to control a). Wild oats b). Eleusine indica c). Echinochloa colona d). All of these
Description : Dormancy mechanism in wild oats a). Innate b). Induced c). Enforced d). All of these
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 : . A crop has residual allelopathy on wheat a). Rice b). Lentil c). Maize d). Sorghum
Last Answer : b). Lentil
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 : The Principal cereal crop of India is? a. Barley b. Sorghum c. Rice d. Wheat e. Oats
Last Answer : c. Rice
Description : Which is also known as golden fibre? a. Cotton b. Wheat c. Silk d. Oats e. Jute
Last Answer : e. Jute
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 residue in soil are undesirable because of a). Injury to sensitive crops b). Accumulate in the produce c). Inhibit soil micro-organisma d). All
Last Answer : d). All
Description : .Which among the following crops ex hibits allo-allelopathy? a).Maize b). Sorghum c). Rye d). All
Description : Herbicide currently being used with herbicide resistant crops a). Glyphosate b). Glufosinate c). Both d). None
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 : 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 : . Transgenic crops were first introduced in a).1985 b).1983 c).1993 d).1990
Last Answer : d).1990
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 : 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 : 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 : . Commonly used post-emergence herbicide in wheat a). 2,4-D b). Isoproturon c). Atrazine 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
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 : Root exudates of which crop has allelo pathic effect on Chenopodium album? a). Wheat b). Oat c). Pea 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 : 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 : 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 : Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in - (1) peas (2) wheat (3) corn (4) oats
Last Answer : (1) peas Explanation: Nitrogen-fixing bacteria are microorganisms capable of transforming atmospheric nitrogen into fixed. nitrogen. Rhizobium is one such bacteria that is associated with leguminous plants ... and convert free nitrogen to ammonia, which the host plant utilizes for its development.