For instance consumptive use of water by tamrix is 22 to 28,000 m3/ha/annum while that of willows and poplars is 7,700 to 13,500 and _____

Related Mcqs:

1. Hybrid and deltoids poplars is:

   A. Cutting is made from one-year-old plants. Preferably stem cutting of 20-25 cm length and finger thickness are used
   B. Where one-year-old plants are produced for panting out. The root-shoot cutting and two cutting from the proximal end of the stem are made from one year old plants
   C. Both (a) & (b)
   D. None of these

2. Insects and disease of poplars/are:

   A. Like every other plant
   B. Also susceptible to may diseases and damages by bacteria, fungi, insects and wild animals
   C. Almost all parts of the tree i.e., stem, leaves, branches and roots etc., are affected by one disease of the other.
   D. Poplars have met quite of few other adversaries in different parts of Pakistan
   E. All of the above

3. Longitudinal sand dunes move slowly at the rate of _____ per annum:

   A. 5 meters
   B. 10 meters
   C. 20 meters
   D. 30 meters

4. The earliest species of tree still surviving is the Maidenhair tree (Ginkgo biloba) of Zhexiang, ______, which first appeared about 165,000,000 years ago, during the Jurassic era:

   A. Korea
   B. Japan
   C. China
   D. Malaysia

5. Water-logging is a serious problems, with water-table within _____ over the greater part of the area:

   A. 5m
   B. 6m
   C. 7m
   D. 8m

6. Honey bees collect ectar and pollen from about 500 wild and cultivated plant species including:

   A. Trees shrubs, herbs, anhnuals
   B. And cultivated crops such as Acacias, Cassias, Eucalypts, Albizzias, Cherries, Dalbergia
   C. Both (a) & (b)
   D. None of these

7. The temperature based zone at an altitude of 10,000 is:

   A. Tropical
   B. Sub-tropical
   C. Temperate
   D. Alpine

8. The oldest known living tree is the Bristlecone pine named “Methusela” at 3050 m (10,000 ft) in the ________ , confirmed as 4700 years old:

   A. California
   B. Washington
   C. New York
   D. None of these

9. The soils that are fully laden with water i.e., water logged, are known are:

   A. Physically dry soils
   B. Physiologically dry soils
   C. Alkaline soils
   D. Acidic soils

10. When a soil has been thoroughly wetted and then allowed to drain until capillary movement of the water has stopped, the water content of the soil will give an estimate of it’s:

    A. Gravitational water
    B. Capillary water
    C. Field capacity
    D. Storage capacity