| Issue Date | Title | Author(s) |
| 1981 | Effect of levels of nitrogen and spacing on the yield of rice | Droupathi Devi, G; Vijayagopal, P D; Sasidhar, V K |
| 1985 | Genetic studies on induced viable mutants in rice [Oryza sativa L.) | Gopinathan Nair, V; Vijayagopal, P D |
| 1989 | Induced mutations in cowpea | Vijayagopal, P D; Mini, V |
| 1989 | Induction of genetic variability in guinea grass (Panicum maximum Jacq.) Var.Makuenii | Vijayagopal, P D; Rani, N |
| 1980 | Nitrogen use efficiency and grain yield of rice | Droupathi Devi, G; Vijayagopal, P D; Sasidhar, V K |
| 1979 | Permanent manurial experiment in paddy | Vijayagopal, P D; Droupathi Devi, G |
| 1977 | Role of rain water in the pollination of pepper (Piper nigrum Linn.) | Sreekumari Amma; Vijayagopal, P D |
| 2000 | Sneha, an improved variety of groundnut for uplands | Suma Bai, D I; Manju, P; Sverup John; Wilson, D; Gopimony, R; Vijayagopal, P D |
| 1973 | Studies of the intervarietal hybrids of Solanum melongena, L. | Vijayagopal, P D; Sethumadhavan, P |
| 1980 | Studies on the fractional application of nitrogen on the yield of rice | Droupathi Devi, G; Vijayagopal, P D; Sasidhar, A V K |
