The deficient level of N(%) in plants suggested by various workers is_________________?

Related Mcqs:

1. The available form of nitrogen for plants is_________________?

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

2. Use of tetrazolium staining for assessment of seed quality was suggested by________________?

   A. Woodstock (1973)
   B. Moore (1973)
   C. Maguire (1962)
   D. Germ (1950)

3. Oka (1975) has suggested that me population size suitable for maintenance and seed production of a commercial crop of a self pollinated species should be________________?

   A. 100 plants
   B. 200 plants
   C. 300 plants
   D. 400 plants

4. Use of linear measurements of plumule growth as a vigour test was first suggested by_______________?

   A. Woodstock (1976)
   B. Germ (1949)
   C. Baskin (1972)
   D. Maguire (1962)

5. 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

6. The herb plants have___________________?

   A. Woody stem
   B. Non-woody stem
   C. Trunk
   D. All the above

7. Plants grown in dry region are_________________?

   A. Xerophytes
   B. Thermophyts
   C. Mesophytes
   D. Halophytes

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

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

9. Resistance of plants to living organism is called______________________?

   A. Abiotic resistance
   B. Biotic resistance
   C. Vertical resistance
   D. Horizantal resistance

10. Mg in plants act as___________________?

    A. Protein activator
    B. Enzyme activator
    C. Starch activator
    D. None of the above