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Online ISSN : 2349-8080 Issues : 12 per year Publisher : Excellent Publishers Email : editorinchiefijcrbp@gmail.com |
In the present study the effects of duration of hydration and time of exposure to UV-C radiation on seeds of Vigna radiata of Nayagarh local B variety were investigated. It was determined on the basis of seed germination percentage, rate of seed germination, length of radicle and plumule, height of the seedling and seedling vigour index. Hydration duration and UV-C exposure had no significant effect on the percentage of seed germination or the rate of seed germination. Seeds were considered germinated if 1mm of radicle emerges from the seed coat. Germination initiated within 24 h and completed within 48 h across all treatments. 6-8 h of hydration was sufficient to initiate germination. The radicle length of mung bean seeds was significantly affected by hydration and/ or the UV-C radiation treatments. Radicle length was significantly affected by hydration and UV-C treatments, with the longest radicle observed at 3 h of hydration coupled with 2 h of UV-C exposure (14.38 cm), which was 0.77 cm longer than the radicle of the control. The plumule length of mung bean seeds was not significantly affected by hydration and/ or the UV-C radiation treatments. The longest plumule was observed with 4 h of UV-C exposure (1.39 cm), which was 0.167 cm longer than the radicle of the control. The height of seedlings of mung bean seeds was significantly affected by hydration and/ or the UV-C radiation treatments, with the tallest seedlings resulting from 3 h of hydration and 2 h of UV-C exposure (15.57 cm), which was 0.78 cm longer than the seedling of the control. Maximum seedling vigour index was found at 3 h of hydration and 2 h of UV-C exposure. UV-C radiation positively influenced radicle length, seedling height, and seedling vigor, demonstrating its potential to enhance the growth of mung bean seeds.
