agriculture MCQs – Page 169

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

3361. Green revolution came into being due to evolution of_________________?
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A. Sugarcane varieties

B. Wheat varieties

C. All the above

D. Cotton varieties

3362. The critical stages in cotton is______________?
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A. Budding

B. Flowering

C. Boll .formation

D. All the above

3363. Plants grown in dry region are_________________?
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A. Xerophytes

B. Thermophyts

C. Halophytes

D. Mesophytes

3364. genetic purity of seed is determined by________________?
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A. All the above

B. Ageing test

C. Tz test

D. Grow out test
3365. Two much Mg may create deficiency for_____________________?
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A. K

B. Ca

C. N

D. P

3366. Major source of sugar in world is_________________?
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A. Dates

B. Beet root

C. Sugarcane

D. Water melon

3367. Precise assessment of pest pressure to evaluate Economic risk from pest infestations is called_________________?
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A. Economic threshold

B. Economic mjury level

C. None of the above

D. Crop scouting
3368. The ratio of actual cultivated area to a total farm area over a year is called__________________?
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A. None of the above

B. Cost-benefit ratio

C. Cropping pattern

D. Cropping intensity
3369. The Cotton plant belong to family ?
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A. Malvaceae

B. Fabaceae

C. Leguminaceae

D. Gramineae

3370. Among the important green house gases two are found in higher concentration________________?
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A. Methane and carbon mono oxide

B. None of the above

C. Carbon and nitrogen oxide

D. Methane and nitrogen

3371. Water courses are lined to avoid_________________?
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A. Transpiration

B. Evaporation

C. Seepage

D. Erosion

3372. Plants adopted to arid regions are___________________?
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A. Hydrophytes

B. Xerophytes

C. Aridic plants

D. Mesophytes

3373. Causal organism of root rot of cotton is_____________________?
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A. Rhizoeionia solani

B. Rhizoctonia bataticola

C. Both of them
3374. Among the cotton exporting countries the number of Pakistan is_______________?
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A. 1<sup>st</sup>

B. 3rd

C. 4<sup>th</sup>

D. 2<sup>nd</sup>

3375. Vigor index of seedings in rice can be determined on___________________?
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A. Quantitative basis

B. Qualitative basis

C. Both a & b

D. None of the above

3376. Percentage of area irrigated by a cusec of water during the season is called_______________?
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A. Cusec

B. Intensity

C. Irrigation frequency

D. Base period

3377. The lowest pest population that will cause economic damage is called__________________?
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A. Economic damage

B. Economic pest

C. None of the above

D. Economic threshold
3378. The soil has got______________?
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A. Two horizons

B. Seven horizons

C. Five horizons

D. Six horizons

3379. Fumigating and warming soil by covering it with black plastic is called__________________?
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A. Fumigation

B. Mulching

C. Soil solarization

D. None of the above

3380. A. income farm where the operator is producing primarly his familys needs rather than for sale is called_______________?
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A. Progressive farming

B. Intensive farming

C. Subsistence farming

D. Family farming