Plant Breeding

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, diameter of epicotyls, radical length fresh and dry weight were significant and the number of roots, time of germination and moisture contents percentage were insignificants.

Autorentext

Mr. Fida Hussain has obtained his MS degree in Civil Engineering in 2004. In addition to his rich practicle experience, he is also author of several international publications.Ahmed Imran Hunjra is a PhD Scholar in Iqra University Islamabad-Pakistan.Prof Majed Rashid is Head of COL MBA/MPA Program, Allama Iqbal Open University, Islamabd-Pakistan.