Functions of Forests Forests are world’s air-conditioners and earth’s blankets. Without forests, this world would be an inhospitable place to live in. Forests are the most valuable natural renewable resources of the earth. Forests help life on earth by performing various functions. Some of these functions are: (A) Productive, (B) Protective, (C) Ameliorative, …
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Classification of Forests Forests can be classifed on the basis of: 1. Age, 2. Method of regeneration, 3. Composition, 4. Ownership, 5. Object of Management, 6. Growing Stock. 1. Classification of Forest On the Basis of Age: A) Even Aged Forest: Even-aged forests, also called regular forests are those consisting …
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· Incomplete dominance in dihybrids – 3:6:3:1:2:1. Eg: Mirabilis jalapa. Complementory factors (Duplicate recessive epistatis) 9:7, Test cross ratio 1:3. Two separate factors governed the same character. Supplementory factors (Recessive epistasis) – 9:3:4, Test cross ratio 1:1:2. Epistatic factor (dominant epistaris) – 12:3:1. Test cross ratio 2:1:1. The gene which …
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Object of Silviculture Silviculture is improved limitation of nature. In nature, we find a large number of species coming up at one place. Some individuals die out of competition, some attain top canopy while others remain at lower levels. Silvicultural factors are usually controlled by economic considerations. If there are a large number …
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Plant Breeding · From the radical a seminal root originates, produces two lateral roots referred to as “Seminal root system”. · Stem – Culm. · Ligule – Membranous hairy structure present at the function of leaf sheath and leaf blade. · Auricles – Ear like appendages on either side of the …
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Silviculture Introduction: Silviculture pertains to the raising, development, care, reproduction and overall management of forest crops. Definition: If has been defned variously as follows: By Toumey and Korstain: Silviculture is that branch of forestry which deals with the establishment, development, care and reproduction of stands of timber. By Champion and Seth: …
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