Department of Agricultural Botany, Pandit Jawaharlal College of Agriculture and Research Institute, Karaikal - 609 603, India
* NPRC, Vamban, Pudukottai DT, Tamilnadu.
In vitro screening of five cowpea varieties using seed germination by roll towel method was carried out. They were placed in three treatments of salt solutions (3 dSm−1, 6 dSm−1, 9 dSm−1) and control distilled water. Analysis of variance revealed that differences due to genotypes, salt treatments and vigour index were highly significant. Among the genotypes CO 4 registered the highest mean vigour index and was found to be tolerant to salinity. P 152 was found to be sensitive to salinity at 9 dSm−1 since there was no germination of this variety at this level.
