The contact herbicides are less effective to_________________?

Related Mcqs:

1. Weedicides that kill the foliage of weeds by direct contact are as________________?

   A. Trifluration
   B. Paraquet
   C. Bromoxy nil
   D. Loxynil

2. The cotton plant sheds more fruits mainly due to_________________?

   A. More number of irrigations
   B. Higher temperature
   C. Higher dose of fertilizer
   D. Insects and pest

3. In rice, high silicon content, in shoot confers resistance to_________________?

   A. Leaf borer
   B. Stem borer
   C. Root borer
   D. All the above

4. 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

5. A region with an annual rain fall of less than 10 inches comes under_________________?

   A. Arid climate
   B. Semi arid climate
   C. Wet climate
   D. Temperature

6. A region with an annual rainfall less than 10 inches comes under_________________?

   A. And climate
   B. Semi-and climate
   C. Wet climate
   D. None of the above

7. The ratio of actual cultivated area to a total farm area over a year is called__________________?

   A. Cropping pattern
   B. Cropping intensity
   C. Cost-benefit ratio
   D. None of the above

8. The ratio of actual cultivated’ area to a total farm area over the year is called __________________?

   A. Cropping pattern
   B. Cropping intensity
   C. Cost benefit ratio
   D. Cropping system

9. 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)

10. Gassypium barbadense was developed from a cross between__________________?

    A. G. herbaceum and G. raimondii
    B. G. arborieum and G. raimondii
    C. G. hirsutum and G. raimondii