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

Related Mcqs:

1. Mutual association between fungi and roots of plants is known as_________________?

   A. Rhizospher
   B. Mycorrhizae
   C. Root fungi
   D. None of the above

2. The plants which, grow neither in dry nor in wet condition are_______________________?

   A. Xerophytes
   B. Amphibiophytes
   C. Mesophytes
   D. Hydrophytes

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

4. The ratio of treatment variance to error variance is known as_________________?

   A. Correlation
   B. F-value
   C. Critical difference
   D. I-value

5. A process in which most of the organisms are killed is known as_________________?

   A. Heating
   B. Sterilization
   C. Pasteurization
   D. Neutralization

6. Seed bag labeled with white colour indicates_________________?

   A. Certified seed
   B. Basic seed
   C. Pre-basic seed
   D. Pure seed

7. Who described the method of estimating seed vigor on the basis of colour intensity of stained seed________________?

   A. Woodstock (1976)
   B. Kittock and Law (1969)
   C. Maguire (1962)
   D. Nicolls & Heu Decker (1968)

8. Simple plains that lack photosynthesis pigments are called as_________________?

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

9. Organisms which feeds on dead and decaying organisms are called as_________________?

   A. Saprophytes
   B. Halophytes
   C. Xerophytes
   D. All the above

10. Controlled run off, water supplies, irrigation, soil fertility is called as_________________?

    A. Catchmento protection
    B. Agriculture conservation
    C. Soil protection
    D. Saw logs