Download Applications of Biotechnology in Forestry and Horticulture by S. Ramachandran (auth.), Vibha Dhawan (eds.) PDF

By S. Ramachandran (auth.), Vibha Dhawan (eds.)

Major and fascinating alterations have taken position lately in a number of features of bio­ expertise and its functions to forestry. much more intriguing is the chance of significant strategies that the full box of biotechnology holds for plant development in most cases. the significance of those advancements for the forestry quarter is substantial, particu­ larly given that forestry technology has no longer acquired the types of technical and R&D inputs that, say, agriculture has got long ago few many years. Y ct the issues of defor­ estation in addition to stagnation in yields and productiveness of current forests in the course of the international have gotten more and more obvious, with results and ecological ef­ fects that reason becoming around the world predicament. rules for software of current knowl­ facet in biotechnology to the sector of forestry and priorities for destiny learn and improvement are, accordingly, of substantial worth, since it is barely during the adop­ tion of the ideal priorities and enlightened guidelines that medical advancements will circulate alongside the fitting path, resulting in advancements in forestry practices via­ out the realm. It used to be in contrast backdrop that the Tata strength study Institute (TERI) or­ ganised a big foreign workshop at the "Applications of Biotechnology in For­ estry and Horticulture" at New Delhi in January 1988. the current quantity covers the lawsuits of this foreign workshop.

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National Botanical Research Institute (CSIR). Lucknow 226001. India. 46 Dogra through seed (sexual) and vegetative propagules (asexual reproduction). Improved germ plasm thus produced is multiplied by the tree-breeder through clonal banks, seed zones, seed production areas and seed orchards. Outstanding genotypes are cloned true-to-parent only on a small-scale and mostly to aid breeding through methods of vegetative propagation. Genetically improved plants for plantations are, however, required in large numbers.

However, in such cases, there would not be much genetic variability. In fact, there would be an inverse correlation between economic yield and genetic diversity. It would, therefore, be costly to maintain such tree plantations on account of low genetic variability. It would also involve the protection of the KII 0511 00 38 Table 5 : Comparison of two types of genetically superior plantations Seed-raised 1. 2. 3. Clonal/Tissue culture-raised Genetically variable Uniform - Gene complexes both for production (short-term economic yield) and future adaptability - Stress on short-term economic yield at the expense of future adaptability - Immediate fitness and long-term genetic flexibility - Immediate fitness only Low maintenance costs High maintenance costs - - High inputs and high yield Low inputs and moderate yield Advisable under polycultural forestry Advisable under monocultural conditions - Species-rich; various - Low genetic diversity species serve different purpose/need 4.

First, a strong R&D base involving intensive collaborative effort (biotechnology offers one such possibility to boost productivity), and second, appropriate land laws and regulations governing forest tree farming and harvesting of the produce. From Tables 1 and 4, it is clear that India has to launch a major effort to restore the forest cover, not only to ensure long-range ecological security and supply of goods and services to rural communities, but also to meet the timber needs of the people and those of the forest-based industry.

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