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

Related Mcqs:

1. Who showed a positive correlation between tetrazolium staining with seed quality in soybean seeds ?

   A. Maguire (1963)
   B. Barries ei al. (1969)
   C. Moore (1973)
   D. Woodstock (1976)

2. 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

3. Breeders seed production is taken up from the nucleus seed B and A lines are pollinated in an isolation of 1 Km in a ratio of_________________?

   A. 1:2
   B. 1:3
   C. 1:4
   D. 1:5

4. The seed dormancy of rice seed can be broken by putting into the oven at____________________?

   A. 50°c for 5 hrs
   B. 53°c for 6 hrs
   C. 45°c for 6 hrs
   D. none of the above

5. Hitting the seed with force against a hard surface to break seed dormancy is called_______________?

   A. Impaction
   B. Abrasion
   C. Stratification
   D. Scarification

6. genetic purity of seed is determined by________________?

   A. Ageing test
   B. Grow out test
   C. Tz test
   D. All the above

7. Who described. the use of letrazolium for assessing, seed quality and the basis of topographical patterns___________________?

   A. Moore (1973)
   B. Burries etc (1969)
   C. Maguare (1962)
   D. Kotowski (1926)

8. Precise assessment of pest pressure to evaluate Economic risk from pest infestations is called_________________?

   A. Economic threshold
   B. Crop scouting
   C. Economic mjury level
   D. None of the above

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

   A. <2%
   B. <1%
   C. <5%
   D. 10%

10. 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)