Effect of GA3 and cow urine on germination and morphology of custard apple

Abstract

An investigation was conducted to the effect of GA3 and cow urine on germination and morphology of custard apple. The result indicated that T3 (400 ppm GA3 and cow urine for 24hrs) took minimum days (31.50) to start germination, minimum days (64.75) for 50% seed germination and the highest germination percentage at 60 DAS (76.5%). The height of plant was recorded at. The maximum plant height i.e. 4.35, 8.25, 12.00 and 16.75 cm at 60, 90, 120 and 150 days after sowing, the maximum number of leaves per seedling i.e. 5.00, 8.39, 16.00 and 18.25 at 60, 90, 120 and 150 days after sowing and maximum girth of stem i.e. 2.64, 2.84, 3.11 and 3.77 at 60, 90, 120 and 150 days after sowing, respectively were recorded under the treatment T3.The maximum length of seedling at 150 DAS i.e. 30.50 cm, maximum root length (20.50cm) and maximum number of roots per seedling (44.25) were recorded at under the treatment T3.