| biomonitoring of lead in atmospheric environment of an urban center of the ganga plain, india. | monitoring of atmospheric lead from the dalbergia sissoo tree was undertaken at lucknow urban centre of the ganga plain, india. a total of 26 leaf samples were collected in spring, monsoon and winter seasons from 16 sampling sites and was analysed by atomic absorption spectrophotometry method. lead concentrations were low in spring season, increased in monsoon to winter seasons and range from 2.1 to 28.2 microg/g (dry wt.). this accumulative response of lead in the tree leaves is directly linked ... | 2005 | 16418907 |
| genetic diversity in some perennial plant species with-in short distances. | distinct morphophysiological variations observed for over 2 years with-in short distances among four perennial plants indicated genetic diversity among the lines growing at three places. the isozyme and sds polyacrylamide gel banding patterns as genetic markers were used to investigate four perennial species, namely dalbergia sissoo roxb., delonix regia (boj.) refin., cassia fistula l. and calotropis procera r. br. plant materials collected from three locations (agra, gwalior and lucknow) differ ... | 2007 | 17717991 |