Excess of nitrogen to plants causes_________________?

Related Mcqs:

1. Foliar application of nitrogen means applying nitrogen in solution form to___________________?

   A. Whole plant
   B. Leaves
   C. Stem only
   D. Flowers only

2. The available form of nitrogen for plants is_________________?

   A. NO₃
   B. NH₄
   C. Both a and b
   D. non of these

3. Soil water in excess of hygroscopic and capillary water which moves downward through the soil by the force of gravity is called______________?

   A. Capillary water
   B. sub-surface water
   C. Gravitational water
   D. Run off water

4. The enzyme responsible for biological nitrogen fixation is________________?

   A. Lipase
   B. Nitrogenase
   C. Isomerase
   D. Kinease

5. Azolla which fixes nitrogen in rice field is__________________?

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

6. Preferable form of nitrogen for rice under submerged soil conditions is ____________?

   A. NH4
   B. NO3
   C. NO2
   D. All of these

   Submitted by: Muhammad Rehan

7. Pulling of off- type plants from a cropped field is called___________________?

   A. Rouging
   B. Weeding
   C. Pruning
   D. None of the above

8. Effects of allelopathic compound in the life cycle of plants cause inhibition of________________?

   A. Seed deterioration
   B. seed germination
   C. Seed swelling
   D. non of these

9. 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

10. Plants having no defined limits of vegetative and reproductive element is called______________?

    A. Absolute growth
    B. Assimilation
    C. Indeterminate growth
    D. Determinate growth