How much nitrogen does air contain?
Correct answer B. 78% nitrogen
Topic / 300 questions
Agronomy MCQs
Page 2 of Agronomy multiple-choice questions with answers. Tap an option to check yourself.
Page 2 of 15
Seed leachate conductivity is significantly higher in seeds with which characteristic?
Correct answer C. Lower shoot weight
Who first suggested measuring plumule growth length as a test of seed vigour?
Correct answer A. Germ (1949)
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In which type of grains is electrolyte leakage found to be greater?
Correct answer B. HD grains
What is the most promising means of enhancing crop productivity?
Correct answer A. Quality of seeds
Abnormal seedling growth in rice is most closely linked with which grains?
Correct answer B. LD grains
What may cause abnormal seedling growth in rice?
Correct answer D. All the above
Dormancy in neem seeds can be broken effectively by heat treatment at what temperature and duration?
Correct answer B. 50 °C for 3-7 days
Who devised the formula for speed of germination?
Correct answer C. Maguire (1962)
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Who developed a method of estimating seed vigour from the colour intensity of stained seeds?
Correct answer C. Kittock and Law (1953)
For seeds of wheat, paddy and maize, germination percentage correlated positively with viability as determined by which test?
Correct answer C. TZ test
Who described a method of estimating seed vigour from the colour intensity of stained seed?
Correct answer D. Kittock and Law (1969)
According to Oka (1975), what population size is suitable for maintenance and seed production of a commercial crop of a self-pollinated species?
Correct answer B. 300 plants
In rice, a high silicon content in the shoot gives resistance to which pest?
Correct answer C. Stem borer
What is the total dry matter produced by a plant through photosynthesis called?
Correct answer B. Biological yield
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What is the first vegetation to invade and occupy an area called?
Correct answer B. Pioneer
What is the mean annual temperature of a hot desert?
Correct answer C. 30°C
What is the cutting of tree branches to provide fodder called?
Correct answer A. Lopping
Where do mesophytes grow?
Correct answer A. Moist places
What is the scientific name of jantar?
Correct answer B. Sesbania sesban