In cold storage the best temperature of storing seed of most species lies between ______.

Related Mcqs:

1. The species characteristics are an expression of the genetic make up of an animal species influencing the extend and nature of ______.

   A. Home range, breeding season
   B. Longevity, territory and the niche
   C. Both (a) & (b)
   D. None of these

2. Sometimes sound and uninjured seeds may fail to germinate due to reduced activity of the seed or seed parts resulting in blockade of the growth. This may be due to:

   A. External effects of environment
   B. Internal conditions within the plant itself, i.e. Embryo dormancy or seed coat dormancy
   C. Both (a) & (b)
   D. None of these

3. Storage of seed is:

   A. Sometimes the seed has to be stored till sowing time
   B. Also many species produce good seed crops only at interval of several years
   C. The seed collected in good years must be stored for several years to provide for the lean years
   D. All of the above

4. The best seed moisture content is below 10% of the oven dry weight for the coniferous but it must be kept above _____ for most of the broad leaved species:

   A. 20%
   B. 25%
   C. 30%
   D. 35%

5. Exotic species, which brought for plantation from some other country to our country or even from one ecosystem to other ecosystem are called, as exotic species like:

   A. Pinus nigra – Japan
   B. Euralyptus – Australia
   C. Polunia – China
   D. All of the above

6. The Cholistan Desert lies in Bahawalpur in Punjab and its continuation in ______ , in Sindh province:

   A. Shahkar Pur
   B. Khairpur
   C. Both (a) & (b)
   D. None of these

7. The cold season, lasting from ______ , enjoys its major share from western disturbances which are also the source of snowfall in the Himalayas, Hindu Kush and Karakoram:

   A. December to February
   B. January to March
   C. March to May
   D. None of these

8. 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

9. The soil cover of the earth lies between:

   A. Atmosphere and lithosphere
   B. Lithosphere and biosphere
   C. Atmosphere and hydrosphere
   D. All of these

10. The Thal Desert lies between the:

    A. Jhelum and Indus river
    B. Ravi and Indus River
    C. Chenab and Indus River
    D. None of these