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:

Related Mcqs:

1. Dry sub-tropical broad-leaved forests having:

   A. Low forest of branchy trees forming a canopy
   B. Varying in density from complete closure
   C. Under the most favourable conditions to scattered single trees or groups on the driest sites
   D. Typically field in with a shrub growth which similarly varies in density
   E. All of the above

2. Broad leaved forest oak are found in:

   A. Tropical deciduous forest
   B. Tropical evergreen forest
   C. North coniferous forest
   D. Temperature deciduous forest

3. Broad leaved deciduous forests are typical of:

   A. Monsoon region
   B. Mid-latitude forests
   C. Mediterranean region
   D. Coniferous forests

4. The chief coniferous species are:

   A. Pinus wallichiana
   B. Cedrus deodara
   C. Piecea smithiana
   D. Abies pindrow
   E. All of the above

5. These are generally, but not always, developed above the birch zone and in patches, sometimes extensive, within it, probably conditioned by edaphic and biotic factors, in Kashmir, Gilgit, Chitral and Hazara. This type ascends normally to ______ or more above the sub-alpine forests and climate must be similar but more severe than in sub-alpine forests:

   A. 140 m
   B. 150 m
   C. 160 m
   D. 170 m

6. 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

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

   A. 3
   B. 2
   C. 4
   D. None of these

8. Coniferous forests having characteristics:

   A. Nature over the past several hundred years hs built-up a reserve of wood in the conifer forests
   B. They can be characterized as having a high volume of wood per hectare, but a very low annual growth rate
   C. The high volume per hectare is ideal for meeting immediate timber needs
   D. All of the above

9. Generally seeds of species growing in cool temperate and dry tropical areas need some sort of pre-sowing treatment is/are:

   A. Weathering: Seed is exposed to sunlight, wind and rain
   B. Mechanical treatment: In order to break hard seed coat seed is beaten or crushed
   C. Fire treatment: Seed is covered with grass etc. And grass is put on fire
   D. Water treatment: Seed is soaked in hot or cold water for some hours or even days before sowing
   E. All of the above

10. 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