1Department of Vegetable Crops, Haryana Agricultural University, Hisar-125004, (Haryana).
The investigations were carried out at Research Farm and Laboratories of Department of Vegetable Crops, Haryana Agricultural University, Hisar during 1988–89 and 1989–90. The roots of potato seedlings of HPS 1/67 were dipped in growth regulator solutions for one hour before, transplanting. The seedlings were transplanted in nursery beds at a spacing of 10 × 10 cm accommodating 100 plants m2 (s). The results indicated that in general all the growth regulator treatments improved the plant growth and seedling tuber yield of transplants. Root dip treatment with 5 ppm IBA helped best in early establishment of seedling, improved plant survival and growth characters. The seedling tuber yield under this treatment was significantly superior over control (water soaked) and statistically at par with control (in situ). This suggested that root dip treatment with 5 ppm IBA helped best in overcoming the transplanting shock which is one of the major problems in potato production by seedling transplanting method under warm climate.
