Plant Growth Regulators in Seed Coating Agent Affect Seed Germination and Seedling Growth of Sweet Corn

Abstract

To evaluate the potential effectiveness of plant growth regulators in improve seed germination and seedling vigor when applied during seed coating in sweet corn. 6-benzylaminopurine (6-BA), 1naphthalene acetic acid (NAA), brassinolide and gibberellic acid (GA 3 ) were added as seed coating agent, and seed germination, antioxidant capacity and seedling vigor of sweet corn were investigated. The results showed compared with the use of coating agent alone, plant growth regulators improved seed vigor and germination, especially GA 3 (200 and 250 mg L −1 ) and 6-BA (20 and 40 mg L −1 ) were added. Furthermore, 200 mg L −1 GA 3 treatment improved seed germination and antioxidant capacity and resulted in sweet corn seedlings with a better appearance. The results observed indicated plant growth regulators might be valuable agents in sweet corn seed coating.

Effect of Hormonal Seed Priming on Germination, Growth, Yield and Biomass Allocation in Soybean Grown under Induced Drought Stress

“…Particularly, to involve factors such as the genotype, seed viability and the biochemical effects of BA seed pretreatment under drought stress conditions. These findings clearly demonstrated the importance of BA on obliviating poor growth effects under environmental stress as reported in the cultivation and productivity of other recalcitrant crops (Boschi et al, 2016;Suo et al, 2017).…”

“…In soybean, it was also indicated that, pretreatment of seeds with BA caused a reduction in germination speed, epicotyl growths and primary as well as lateral root formation, especially when applied in amounts higher than 4.87 mgL -1 of BA used (Mangena and Mokwala, 2018). The role of BA in changing seedling morphological characteristics such as; swollen underdeveloped radicles, thicker hypocotyls and stunted shoots was fully accounted for (Mangena et al, 2015;Sale, 2016;Suo et al, 2017). In line with this study, it was also reported that, germination can be raised by soaking seeds in a solution containing a similar amount of BA, although its effects could be inhibitory and it was better used alone than in combination with any other hormone, for example GA 3 (Gao et al, 2015).…”

Sweet Corn Research around the World 2015–2020

“…The three binders had better pelleting integrity, germination index, seedling growth, and shoot growth rates than non-ionic polyacrylamide and non-pelleted seeds. Suo et al [53] evaluated the potential effectiveness of plant growth regulators in improving germination and seedling vigor when applied during seed coating. They added 6-benzylaminopurine (6-BA), 1-naphthalene acetic acid (NAA), brassinolide, and gibberellic acid (GA(3)) to seed coating agents and found that plant growth regulators improved seed vigor, germination and antioxidant capacity that resulted in visually superior sweet corn seedlings.…”

Storage performance of primed bell pepper seeds with 24‐Epibrassinolide

“…These proteins regulate the speed of the germination (Lapik & Kaufman, 2003). At the same time, the positive effect of 24‐EpiBL on the speed of germination has been reported for several crops, including Arabidopsis (Choe et al., 2000), tomato (Ahammed, Zhang, Shi, Zhou, & Yu, 2012), and sweet corn ( Zea mays ; Suo et al., 2017). For example, germination of Arabidopsis mutants deficient in brassinosteroids was reduced as compared with those of wild‐type seeds (Choe et al., 2000).…”