Yield losses of rice crop due to weed infestation are___________________?

Related Mcqs:

1. Better crop establishment especially for direct seeded rice can be obtained by using________________?

   A. High density grain
   B. Low density grain
   C. Both a & b
   D. None of the above

2. A crop grown on residual moisture after harvesting rice is called__________________?

   A. Barani crop
   B. Dubari crop
   C. Ratoon crop
   D. Sure crop

3. A crop grown on residual moisture after harvesting rice is called__________________?

   A. Barani crop
   B. Dubari crop
   C. Ratoon crop
   D. Sure crop

4. Ratio of economic yield to biological yield expressed in percentage is called_______________?

   A. Harvest index
   B. Seed index
   C. Total yield
   D. Dry matter

5. Ratio of crop yield to the amount of water utilized is called______________?

   A. Soil water use
   B. Crop water use efficiency
   C. Soil plant water relationship
   D. Water intensity

6. Melilotus alba is objectional weed of__________________________?

   A. Okra
   B. Methi
   C. Cucurbits
   D. Wee

7. Abnormal seeding growth in rice may be due to_________________?

   A. Intrinsic Mechanism
   B. Lack of integrity in seed cells
   C. Endogenous inhibitors
   D. Al the above

8. Plants adopted to arid regions are___________________?

   A. Mesophytes
   B. Hydrophytes
   C. Xerophytes
   D. Aridic plants

9. Azolla which fixes nitrogen in rice field is__________________?

   A. Bacteria
   B. Fungi
   C. Ferm
   D. None of the above

10. Abnormal seeding growth in rice is more closely related, with______________?

    A. IID grains
    B. LD grains
    C. Both a & b
    D. None of the above