The present investigation was undertaken in sponge gourd in order to estimate heterosis, combining ability and nature of gene action involved in the inheritance of fruit yield and its component characters, viz., days to open first female flower, node to first female flower, node to first male flower, days to first picking, length of vine (m), number of primary bran...

The problem of pollution as a consequence of increased industrialization is, by now, a well-known phenomenon. In case of pollution in water, the problem is more serious. Not only industrial wastes, but also discharge of domestic waste water and sewage can be major pollutant. In present investigation three mathematical models first on the impact of pulp and paper mi...