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MCQs 1: There has been emphasis on the conservation of wild relatives of cultivated plants because wild plants________________?

Grow better then cultivated plants Serve, as valuable fodder plants Needed to understand the origin of cu;cultivated plants Carrying many useful genes which are lost in cultivated plants
Answer Explanation

MCQs 2: The process of converting food nutrients to carbohydrates in plants is called________________?

Metabolism Photosynthesis Absorption Assimilation
Answer Explanation

MCQs 3: Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called________________?

Long day plants Short day plants Photoperiod Phototropism
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MCQs 4: When crop plants adopt to a new environment are called___________________?

Accaumatization Domestication Selection Introduction
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MCQs 5: The organisms which do not prepare their own food and depend on the dead organisms are called_____________________?

Saprophytes Parasites Obligatory parasites Bacteria
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MCQs 6: The cotton plant sheds more fruits mainly due to_________________?

More number of irrigations Higher temperature Higher dose of fertilizer Insects and pest
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MCQs 7: Dwarf varieties of wheat are more resistance to_______________?

Disease Insect pest Lodging Viruses
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MCQs 8: Yield losses of rice crop due to weed infestation are___________________?

10-20% 5-15% 20-50% 20-60%
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MCQs 9: Wheat is predominantly________________?

Self pollinated crop Often cross pollinated crop Cross pollinated crop Apomictie crop
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MCQs 10: Growing more then one crop in a season in the same land is called________________?

Monocropping Double cropping Intensive cropping Intercropping
Answer Explanation

MCQs 11: A condition of green plants in which they become unhealthy and pale fellow in colour is known as_________________?

Chromoplast Leucoplast Chlorosis Chromoplast
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MCQs 12: The crop which are cultivated for grain purposes are called_________________?

Fodder crops Cereal crops Fiber crops Leguminous crops
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MCQs 13: The best soil for cotton cultivation is_________________?

Sandy soil Loamy soil Silty soil Clay loam soil
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MCQs 14: The herb plants have___________________?

Woody stem Non-woody stem Trunk All the above
Answer Explanation

MCQs 15: Water courses are lined to avoid_________________?

Transpiration Evaporation Seepage Erosion
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MCQs 16: Progeny of nucleus seed is called_________________?

Basic seed Breeder seed Foundation seed All the above
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MCQs 17: Use of tetrazolium staining for assessment of seed quality was suggested by________________?

Woodstock (1973) Moore (1973) Maguire (1962) Germ (1950)
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MCQs 18: A method of control of pests in which natural predators and parasites are used without causing serious adverse environmental side effects is called_________________?

IPM Allelopathy Insect control Chemical control
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MCQs 19: The transport of a substance across a biological membrane against a concentration gradient is called___________________?

Passive transport Active transport Absorption Dissolution
Answer Explanation

MCQs 20: Number of crops grown on the same piece of land in a year and expressed in percentage is known as_______________?

Cropping pattern Cropping index Crop rotation Cropping intensity
Answer Explanation

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