HYV Programme: Variables that Matter A Comment G Parthasarathy D Haranatha Babu IN the context of the 'Green Revolution' there has been a controversy whether the existing agrarian structure, in particular the prevalence of insecure tenancy, is conducive to the spread of the new technology'. One view has been that the present defective tenurial system blocks the progress of adoption of the new technology. P K Mukherjee in his recent article "HYV Programme