agronomy Mcqs
251. Allelochemicals are used as growth regulators and natural pesticides to promote__________________?
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A. Sustainable agriculture

B. Improve agriculture

C. Both a and b
252. A process in which most of the organisms are killed is known as_________________?
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A. Pasteurization

B. Heating

C. Neutralization

D. Sterilization
253. Crop rotation means growing_________________?
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A. Growing green manures

B. Growing different crops

C. Same craps

D. Growing fodder crops

254. Progeny of nucleus seed is called_________________?
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A. Breeder seed

B. Basic seed

C. Foundation seed

D. All the above

255. The wearing away of the land surface by wind, water, ice or other geological agent is called__________________?
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A. fertility depletion

B. Seepage

C. Soil conservation

D. Erosion
256. In wheat total crop N uptake per ton of grain is about__________________?
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A. 20-30 Kg

B. 70-80 Kg

C. 15-20 Kg

D. 50-60 Kg

257. England cotton was imported from the time in__________________?
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A. 1530 AD

B. 1500 AD

C. 1430 AD

D. 1435 AD

258. In cotton the recommended R x R distance is_________________?
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A. 90 cm

B. 45 cm

C. 75 cm
259. Maize plant belong to_________?
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A. C3 plant

B. CAM

C. None of above

D. C4 plants
260. Partially decomposed organic matter is termed as___________________?
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A. Farm yard manure

B. Composet

C. Humus

D. All the above

261. The oxygen concentration in the air is________________?
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A. 45%

B. 21%

C. 16%

D. 30%

262. The technical name of janter is_________________?
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A. S. mavretiana

B. Sesbania sesban

C. S. aphylla

D. S. oleaides

263. Removal of branches for forage is________________?
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A. Lopping

B. Foraging

C. Litter

D. None of the above

264. Hyderabad district area is in_________________?
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A. None of the above

B. Cholistan range area

C. Raygistan range area

D. Thai range area
265. What is SAZDA_______________?
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A. None of the above

B. Sindhi Arid Zone Development Authority

C. Sindhi Agricultural Zonal Development Authority

D. non of these

266. Use of linear measurements of plumule growth as a vigour test was first suggested by_______________?
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A. Woodstock (1976)

B. Germ (1949)

C. Maguire (1962)

D. Baskin (1972)

267. If the quantity of organic matter is more than 50% is called________?
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A. Sandy soil

B. Clay soil

C. All of these

D. Peat soil
268. Wheat plant belong to__________?
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A. C3 plant

B. C4 plants

C. None of above

D. CAM

269. Seed leachate conductivity is significantly higher in seeds having_________________?
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A. Lower shoot weight

B. Higher root weight

C. None of the above

D. Higher shoot weight

270. Abnormal seeding growth in rice is more closely related, with______________?
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A. IID grains

B. LD grains

C. Both a & b

D. None of the above

271. Hot desert has mean annual temperature of___________________?
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A. 30C

B. None of the above

C. 50C

D. 40C

272. Which area of Pakistan is best for agriculture________?
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A. Sindh

B. Punjab

C. Baluchistan

D. Kpk

273. Plants uptake their nutrients from____________________?
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A. Air

B. Water

C. So

D. All the above
274. Very hot and winterless condition is__________________?
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A. And

B. Tropical

C. Temperature

D. None of the above

275. Due to phosphorus deficiency in plants____________________?
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A. All the above

B. Poor flowering and fruil selling occurs

C. Roots do not develop properly

D. Plants mature late

276. The depth of irrigation water required for the full crop period is called_________?
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A. None of these

B. Delta of water

C. Crop water required

D. Water required

277. Seeds of wheat, paddy and maize showed positive correlation germination (%) and viability (%) as determined by________________?
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A. Tz test

B. Grow put test

C. Test of genetic purity of seeds

D. Ageing test

278. Electrolytes leakage is found greater in______________?
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A. All the above

B. HD grains

C. non of these

D. LD grains

279. Who described the method of estimating seed vigor on the basis of colour intensity of stained seed________________?
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A. Kittock and Law (1969)

B. Maguire (1962)

C. Woodstock (1976)

D. Nicolls & Heu Decker (1968)

280. the layer of atmosphere which blocks ultraviolet radiation from sun is___________________?
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A. Stratosphere

B. Ozone

C. Ozosphere

D. All the above

281. Raising of only one crop in a year when there is seasonal supply of water is called_________?
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A. Multiple cropping

B. Harvest cropping

C. Monocropping

D. None of these

282. The total dry matter produced by a plant as a resulting photosynthesis is called_______________?
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A. None of the above

B. Biological yield

C. Mass

D. Physical productivity

283. The potential means of enhancing productivity is_________________?
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A. All the above

B. Quantity of seeds

C. Quality of seeds

D. Seed density

284. Seed dormancy of nee seeds can be successfully broken by heat treatment at________________?
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A. None of the above

B. 45c for 3-8 days

C. 54c for 2-6 days

D. 50c for 3-7 days
285. The physical condition of soil is called________?
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A. Tilth

B. Tillage

C. Tiller

D. None of these

286. Mesophytes are grown in__________________?
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A. None of the above

B. Dry condition

C. Moist places

D. Desert area

287. An illustration of an organic material is__________?
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A. Vermiculite

B. Perlite

C. Pea gravel

D. Leaf mold
288. Who the a method of estimating seed vigour on the basis of color intensity of the stained seeds ?
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A. Nicolls & Hey Decker (1968)

B. Kittock &. Law (1953)

C. Germ (1949)

D. Moore (1973)

289. Natural water as pH equal to________________?
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A. 1

B. 7

C. 9

D. 4

290. Raising of two or more crops in the same field or in year is called_________?
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A. None of these

B. Harvest cropping

C. Monocropping

D. Multiple cropping
291. Controlled run off, water supplies, irrigation, soil fertility is called as_________________?
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A. Saw logs

B. Agriculture conservation

C. Soil protection

D. Catchmento protection
292. Highly decomposed stage of organic matter is called_______________?
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A. Cellulose

B. Humus

C. All the above

D. Organic acid

293. The condition of drying of plant parts due to lack of water is called__________________?
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A. None of the above

B. Wilting

C. Water stress

D. Drought

294. These crops are planted in winter from October to December and harvested in summer from March to May is called______?
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A. Kharif crops

B. Rabi crops

C. Relay crops

D. All of these

295. Generally field crops are cultivated at altitude__________________?
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A. 1200014000 ft

B. 0008000 ft

C. 02000 ft

D. 20004000 ft

296. The depth of irrigation water required for the full crop period is called_______________?
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A. non of these

B. Delta of water

C. Consuptive use of water

D. Optimum use of water

297. Initial vegetation that invades and occupies the area is called_________________?
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A. Resin

B. Range

C. None of the above

D. Pioneer
298. Narcotic crops mainly grown in Pakistan is_________________?
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A. Pyrethrum

B. Co see

C. Tobacco

D. Cocon

299. Who gave the formula for speed of germination_______________?
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A. Baskin (1972)

B. Maguire (1962)

C. Germ (1949)

D. Moore (1973)

300. In rice, high silicon content, in shoot confers resistance to_________________?
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A. All the above

B. Stem borer

C. Root borer

D. Leaf borer