Studies on Resistance of Rice Germplasms

India is the main rice growing country covering about 45 million hectares of land with about produce of 65 million tones of rice. Girish et al. (1990) declared that about 70 to 80 million tones of rice grain are utilized in the country. Thus, we may conclude that rice has an important place in Agricultural industry and national economy. As per economic survey government of Indian ministry of finance 2004-05 reported the area of rice 42.4 million hectares, and production 87.0 million tones and productivity 20.51 quintal/hectares for the year 2003-2004.