| 1 | Studies on the reproductive performance of Apis mellifera L, queen bees raised in different seasons |
| Researcher: | Harcharan Singh |
| Guide: | Chahal, B S |
| University: | Punjab Agricultural University |
| Language: | English |
| 2 | Studies on the rate of uptake of nitrogen applied at different growth stages of wheat plant |
| Researcher: | Sandhu, Harcharan Singh |
| University: | Punjab Agricultural University |
| Language: | English |