Effects of chilling on seed germination and early seedling growth of Vigna radiata (L.) Wilczek

The present investigation was carried out to find out the effect of chilling stress on the seed germination and seedling growth of Vigna radiata (L.) Wilczek. The experiments were conducted in Petri plates by using absorbent cotton. The seeds of V. radiata were kept for different time intervals (6h, 12h, 18h and 24h) in the freezer of a refrigerator at 40C and then the seeds were allowed to germinate in Petri plates lined with absorbent cotton. Control was also prepared by using non-stressed seeds. The different parameters like germination percentage and the seedling growth parameters like shoot length, fresh weight and dry weight of the seedlings were determined. From the present research work, it was found that the chilling treatments for 6h, 12h, 18h and 24h had no significant effects on the seed germination and early seedling growth of green gram. Even though the seedlings raised from 6h treated seeds showed some enhancement in the shoot length and fresh weight of seedlings it was not carried into the dry weight and dry weight percentage of seedlings.


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