Biotechnological Approaches for Pest Management and by Hari C Sharma

By Hari C Sharma

The booklet brings an up-to-the-minute technique and likewise permits that even those who find themselves no longer into the Biotech enviornment can comprehend the details and concerns lined. first-class in my opinion!

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The potential of these technologies has been tested extensively in model crop species of temperate and subtropical agriculture. However, there is an urgent need for an increased focus on crops relevant to the small farm holders and poor consumers in the developing countries of the humid and semiarid tropics. , 2002). ) Heynh. , 2001), and rice, Oryza sativa L. (Palevitz, 2000). , and Musa spp. Systematic whole genome sequencing provides critical information on gene and genome organization and function, and has revolutionized our understanding of crop production, and ability to manipulate traits contributing to high crop productivity (Pereira, 2000).

Armigera (Murray and Zalucki, 1990). Chemical Control Insecticides are the most powerful tool in pest management. indd 9 11/12/2008 2:58:35 PM 10 Biotechnological Approaches for Pest Management and Ecological Sustainability agronomic requirements, and economical. Insecticides are the most reliable means of reducing crop damage when the pest populations exceed ETLs. When used properly based on ETLs, insecticides provide a dependable tool to protect the crop from insect pests. , 1974). Despite several advantages of insecticides for pest control, their use often results in direct toxicity to natural enemies (Sharma and Adlakha, 1981), and also through the poisoned prey (Sharma and Adlakha, 1986), and a consideration of these is essential for optimizing their use in pest management.

Indd 25 11/12/2008 2:59:25 PM 26 Biotechnological Approaches for Pest Management and Ecological Sustainability For marker-assisted selection (MAS), the elite lines can be crossed with another line having trait(s) of interest. The F1 hybrid is crossed with the recurrent parent (invariably the elite parent) (BC1), and the gene transfer is monitored through MAS until BC3-5 (until the QTL or the gene of interest is transferred into the elite line). In wild relatives that are not easily crossable with the cultivated types, the F1 hybrids may have to be produced through embryo rescue and tissue culture, and the progenies advanced as in the conventional backcross breeding approach (phenotypic selection) or through MAS, using cultivated species as the recurrent parent.

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