Use of ascorbic acid to improve germination and growth of Pinto bean seedlings

عسگری زرگر, حسن and شیخ زاده, پریسا and زارع, ناصر and بلندی عموقین, ماهرخ Use of ascorbic acid to improve germination and growth of Pinto bean seedlings. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

In order to investigate the effect of ascorbic acid priming on germination and seedling growth of pinto beans, a completely randomized design was conducted in Seed Laboratory of Mohaghegh Ardabili University. The treatments consisted of seeds priming with ascorbic acid in three concentrations of 50, 100 and 200 ppm for 6, 12, 24 and 48 h, and control seeds. The results showed that seed priming with ascorbic acid had a significant effect on germination percentage and germination rate, mean germination time, seedling length and dry weight of pinto bean seedlings. The highest germination percent and maximum seedling length were observed in priming seeds with 100 ppm ascorbic acid for 24 hours. The highest germination rate, the highest average seedling dry weight and the lowest mean germination time were observed in priming seeds with 100 ppm ascorbic acid for 48 hours. Among the treatments, the lowest germination and seedling growth was observed in control treatment. Therefore seed priming with a concentration of 100 ppm ascorbic acid for 24 hours and 48 hours, compared to other pretreatments of seed, increased the growth indices and germination of seeds of pinto beans. Therefore, seed priming with ascorbic acid can be used as a key factor in improving the germination and seedling growth of pinto bean seedlings.

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