Isoproturon to wheat is effective at  a). 15 DAS
b). 25-30 DAS
c). 45- DAS  
d). 5 DAS

1 Answer

Answer :

b). 25-30 DAS

Related questions

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 : 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 : 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

Last Answer : d). All

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 : 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 : A herbicide requiring good spray coverage of all foliage for effective control of a weed population a).Paraquat b). Glyphosate c). Atrazine d). Isoproturon

Last Answer : a).Paraquat

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 : 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 : To manage grassy weed flora in barley which of the herbicides is to be applied a). Pendimethalin b). Isoproturon c). a and b d). Metsulfuron

Last Answer : c). a and b

Description : To manage mixed weed flora in barley which of the herbicides is to be applied a).2,4-D b). Isoproturon c). a and b as tank mix d). None of these

Last Answer : c). a and b as tank mix

Description : A herbicide both soil and foliage active a). 2,4-D b). Isoproturon c). Diuron d). All of these

Last Answer : d). All of these

Description : Besides isoproturon resistance in P. minor, other cases of herbicide resis tance reported in India are a). Poa annua b). Brachiaria ramosa c). Commelina sp d). None of the above

Last Answer : d). None of the above

Description : The mode of action of Isoproturon is a). Root inhibitor b). Shoot inhibitor c). Photosynthesis inhibition d). Amino acid inhibition

Last Answer : c). Photosynthesis inhibition

Description : Mode of action of isoproturon a). PSII inhibition b). ACCase inhibition c). Glutamine synthatase inhibition d). Cell division inhibition

Last Answer : a). PSII inhibition

Description : Percent reduction in grain yield of transplanted rice due to weeds is a). 20-40 b).10-30 c).15-20 d).15-45

Last Answer : d).15-45

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 : If the yield from weed free is 3500 kg and that from weedy 1500 kg/ha, weed index would be a). 57.1% b). 133.3% c). 45.0% d). 25.6%

Last Answer : a). 57.1%

Description : If cost of the herbicide is INR 1000 and application cost is INR 500 and net return over weedy is INR 15000, MBCR will be a). 35 b). 25 c). 15 d). 10

Last Answer : d). 10

Description : In erect groundnut variety drum rolling operation is carried out at — DAS. a. 30 to 45 b. 45 to 55 c. 55 to 60 d. After 60

Last Answer : c. 55 to 60

Description : Critical period of crop weed competition in sugarcane is a). 30-40 days b). 30-120 days c). 10-40 days d). 15-30 days

Last Answer : b). 30-120 days

Description : Percent reduction in yield in case of onion due to weeds is a). 20-30 b). 30-35 c). 60-70 d).15-20

Last Answer : c). 60-70

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 : 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 : 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 : . 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 : 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 : 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 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

Last Answer : 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

Last Answer : d). All

Description : . A crop has residual allelopathy on wheat a). Rice b). Lentil c). Maize d). Sorghum

Last Answer : b). Lentil

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 : Consumptive use of wheat is a). 800 mm b). 679 mm c). 979 mm d). 479 mm

Last Answer : d). 479 mm

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 : A shopkeeper bought 30 kg of wheat at the rate of Rs 45 per Kg. He sold 40% of the total quantity at the rate of Rs 50 per Kg. Approximately, at what price per Kg should he sell the remaining quantity to make 25 per cent overall profit? 1. Rs 54 2. Rs 52 3. Rs 50 4. Rs 60

Last Answer : 4. Rs 60

Description : If 1.35 kg/ha of fluchloralin is to be ap plied, Basalin 45 SL required is a). 3 litre b). 2 litre c). 1.35 litre d).2.7 litre

Last Answer : a). 3 litre

Description : Effective rate (kg/ha) of 2,4-D for weed control a). 0.2-0.5 b). 0.5-1.0 c). 2 d). 5

Last Answer : b). 0.5-1.0

Description : The effective solution to manage weed shifts a). Herbicide combinations b). Herbicide rotations c). Crop rotations d). All

Last Answer : d). All

Description : Alachlor is an effective pre-emergence her bicide in ______ a). Maize b). Soybean c). Both d). None

Last Answer : c). Both

Description : . Pendimethalin an effective herbicidal treatment in a). Gladiolus b). Gerbera c). Tuberos d). All

Last Answer : d). All

Description : Pendimethalin is an effective treat ment for weed control in a). Brinjal, tomato, chillies etc b). Cabbage and cauliflower c). Onion and garlic d). All

Last Answer : d). All

Description : In a soil-free system, the most effective safener was the ……………….one most in structure to the herbicide a). similar b). different c). systematic d). contact

Last Answer : a). similar

Description : Basal applications will be more effective during which stage a). active b). mature c). Dormant d). None

Last Answer : c). Dormant

Description : Herbicides are less effective on weeds under which of the soil condition a). Field capacity b). Saturated c). Both a and b d). Dry

Last Answer : d). Dry

Description : The type of soils which require higher dose of herbicides to be effective is a). Inceptisols b). Histosols c). Oxisols d). Ultisols

Last Answer : b). Histosols