Effects of various gamma rays i.e. .5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5 kard were observed on the various genetic parameters of sunflower (Helianthus annus L.). The difference in mean value due to radiation doses were highly significant for radical length, plumule length, number of roots and dry weight, while significant in Germination percentage and Diameter of epicotyls. While the time of germination fresh weight and moisture content percentage were insignificant. The differences in mean values due to replications shows highly significance for plumb length, while germination percentage,...

The present study is an attempt to investigate the Plant Biodiversity of Batrasi Pass with special reference to its Conservation status .The studies were conducted in different seasons during the year during 2007 and 2008. The plants were collected from different habitats, which were later dried and preserved at Hazara University Herbarium for further investigation. A total of 145 species are represented in the area including2 species of bryophytes, 4 species of pteridiophytes,5 species of Gymnosperms, and 113 species of Angiosperms. Among the Gymnosperms 4 genera and 5 species are found...