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Economic and environmental benefits and costs of transgenic by C. Ramasamy, K.N. Sevaraj, George W. Norton, K.

By C. Ramasamy, K.N. Sevaraj, George W. Norton, K. Vijayaraghavan

...a learn of the impression of transgenic kinds of Rice, groundnut, potatoes and egg plant at the lives of the marginal farmers in South Asia

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Disease Management Fungicides alone will not help unless specific schedules are developed for all important potato growing regions keeping in mind the level of resistance in a given cultivar. Cultivar –specific fungicide schedules for both susceptible and resistant varieties have been developed for most of the popular cultivars in various regions, taking into account the time of appearance of the disease. In the sub-tropical plains the blight favorable period is generally limited to 1-2 weeks. Requirements of fungicides for controlling late blight in the hills where the crop is grown under rain fed conditions are high.

CAB International Rice Research Institute, Philippines. L. Hossain (eds) (1999): Impact of Rice Research in Asia, International Rice Research Institute, Philippines. Segelken. R, (2002): Stress Relief: Engineering Rice Plants with Sugarproducing Gene Helps Them Tolerate Drought, Salt and Low Temperatures, Cornell Biologists Report, Cornell News. p. 30. , (2000): Rice: Yawning Productivity Gaps. 39 Thompson J, I. Hume, D. Griffin, S. North and D. Mitchell. (1997): Use of Saline Water in Rice Based Farming Systems, National Program for Irrigation Research and Development, NSW Agriculture, Deniliquin, NSW 2710.

About one third of the agricultural scientists of TNAU address issues relating to rice in one way or another. Most rice research centers engage in varietal breeding, crop selection, adaptive research, resource management and plant protection. The state agricultural research system in Tamil Nadu has a long history of research accomplishment with its formal rice research dating back to 1908. The wonder rice, ADT27, was released in 1965 marking the beginning of the green revolution in Tami Nadu. Generally, the research focus has been largely directed at irrigated rice in Tamil Nadu and very little attention has been paid to research on rain fed rice.

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