Forests & Forest Policy

• Champion and Seth's Classification of Indian Forest Types:
• Tropical Wet Evergreen Forest (1A): Dominated by lofty dipterocarps like Dipterocarpus spp. and Mesua ferrea in Western Ghats and North-East India $\rightarrow$ (II)
• Tropical Moist Deciduous Forest (3B): Dominated by prized timber species Tectona grandis (Teak) and Shorea robusta (Sal) $\rightarrow$ (I)
• Littoral and Swamp Forest (4): Characterized by mangrove and littoral species like Casuarina equisetifolia and Rhizophora $\rightarrow$ (IV)
• Sub-Tropical Dry Evergreen Forest (10): Typical scrubby xerophytic woodlands of the foothills dominated by Olea cuspidata (Indian olive) and Dodonaea $\rightarrow$ (III)
• Systematic Match: (A)-(II), (B)-(I), (C)-(IV), (D)-(III) corresponds to Option 4.

Correct option: (4) (A) - (Il), (B) - (1), (C) - (IV), (D) - (Ith)

• Statement (I) is Incorrect: In forest tree breeding, genetic gain ($\Delta G$) obtained from Seed Production Areas (SPAs, phenotypically thinned natural stands) is modest (typically $3-8\%$), whereas Seed Orchards (Clonal Seed Orchards, CSOs, or Seedling Seed Orchards, SSOs) established from rigorously progeny-tested plus trees yield substantially higher genetic gain ($15-30\%$).
• Statement (II) is Incorrect: Second-generation seed orchards capture cumulative additive genetic variance through recurrent selection, achieving significantly higher genetic gains than first-generation seed orchards.
• Conclusion: Both Statement (I) and Statement (II) are incorrect (Option 2).

Correct option: (2) Both Statement (I) and Statement (Il) are incorrect