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1) There has been emphasis on the conservation of wild relatives of cultivated plants because wild plants________________? a. Grow better then cultivated plants b. Serve, as valuable fodder plants c. Needed to understand the origin of cu;cultivated plants d. Carrying many useful genes which are lost in cultivated plants
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2) The process of converting food nutrients to carbohydrates in plants is called________________? a. Metabolism b. Photosynthesis c. Absorption d. Assimilation
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3) Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called________________? a. Long day plants b. Short day plants c. Photoperiod d. Phototropism
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4) When crop plants adopt to a new environment are called___________________? a. Accaumatization b. Domestication c. Selection d. Introduction
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5) The organisms which do not prepare their own food and depend on the dead organisms are called_____________________? a. Saprophytes b. Parasites c. Obligatory parasites d. Bacteria
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6) The cotton plant sheds more fruits mainly due to_________________? a. More number of irrigations b. Higher temperature c. Higher dose of fertilizer d. Insects and pest
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7) Dwarf varieties of wheat are more resistance to_______________? a. Disease b. Insect pest c. Lodging d. Viruses
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8) Yield losses of rice crop due to weed infestation are___________________? a. 10-20% b. 5-15% c. 20-50% d. 20-60%
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9) Wheat is predominantly________________? a. Self pollinated crop b. Often cross pollinated crop c. Cross pollinated crop d. Apomictie crop
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10) Growing more then one crop in a season in the same land is called________________? a. Monocropping b. Double cropping c. Intensive cropping d. Intercropping
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11) A condition of green plants in which they become unhealthy and pale fellow in colour is known as_________________? a. Chromoplast b. Leucoplast c. Chlorosis d. Chromoplast
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12) The crop which are cultivated for grain purposes are called_________________? a. Fodder crops b. Cereal crops c. Fiber crops d. Leguminous crops
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13) The best soil for cotton cultivation is_________________? a. Sandy soil b. Loamy soil c. Silty soil d. Clay loam soil
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14) The herb plants have___________________? a. Woody stem b. Non-woody stem c. Trunk d. All the above
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15) Water courses are lined to avoid_________________? a. Transpiration b. Evaporation c. Seepage d. Erosion
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16) Progeny of nucleus seed is called_________________? a. Basic seed b. Breeder seed c. Foundation seed d. All the above
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17) Use of tetrazolium staining for assessment of seed quality was suggested by________________? a. Woodstock (1973) b. Moore (1973) c. Maguire (1962) d. Germ (1950)
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18) A method of control of pests in which natural predators and parasites are used without causing serious adverse environmental side effects is called_________________? a. IPM b. Allelopathy c. Insect control d. Chemical control
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19) The transport of a substance across a biological membrane against a concentration gradient is called___________________? a. Passive transport b. Active transport c. Absorption d. Dissolution
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20) Number of crops grown on the same piece of land in a year and expressed in percentage is known as_______________? a. Cropping pattern b. Cropping index c. Crop rotation d. Cropping intensity
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