Through which process can allelochemicals enter the soil?
Correct answer C. Root exudation
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Agriculture MCQs
Page 123 of Agriculture multiple-choice questions with answers. Tap an option to check yourself.
Page 123 of 135
Sunflower has an allelopathic effect on many of which organisms?
Correct answer A. Weeds
Using allelochemicals as growth regulators and natural pesticides helps to promote what?
Correct answer C. Both A and B
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In what does allelopathic interaction between plants play a crucial role?
Correct answer A. Ecosystems
What does IPM stand for?
Correct answer A. Integrated Pest Management
What causes root rot of cotton?
Correct answer C. Both of them
Which insect acts as the vector of cotton leaf curl virus (CLCV)?
Correct answer A. Whitefly
What is the total cropped area of Sindh?
Correct answer C. 4.00 million ha
What isolation distance is required to produce certified wheat seed?
Correct answer A. 3 metres
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Breeder seed is the progeny of which type of seed?
Correct answer A. Nucleus seed
What isolation distance is required to produce foundation seed of sunflower?
Correct answer A. 400 meters
In bhindi (okra), what isolation distance is needed for foundation seed production?
Correct answer B. 200 metres
The International Institute of Tropical Agriculture (IITA) is located in:
Correct answer B. Nigeria
What is the negative logarithm of the hydrogen ion concentration, used to measure acidity, called?
Correct answer A. PH
A region receiving less than 10 inches of rain a year falls into which climate type?
Correct answer B. Arid climate
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What is the amount of water needed to grow a crop to maturity within a given period called?
Correct answer A. Crop Water requirement
What is the practice of growing two successive crops of the same species on the same piece of land in one year called?
Correct answer A. Double cropping
What is the ratio of economic yield to biological yield, expressed as a percentage, called?
Correct answer C. Harvest index
What is the control and preservation of natural resources for present and future use called?
Correct answer A. Conservation
What is the growth of plants with no defined boundary between vegetative and reproductive phases called?
Correct answer D. Indeterminate growth