The effect of seed coating with fertilizer containing nutrients and growth stimulants on plant establishment and seedling growth of sugar beet

This study aimed to evaluate the effect of seed coating with fertilizer containing nutrients and growth stimulants of Fosnotron, Aminol-forte, Humi-forte and Humica on the establishment and growth of sugar beet seedlings at Mohaghegh Ardebil University in 2017 under field conditions. The experiment was conducted as factorial based on randomized complete block design with four replications.  Seed washing (washing without washing), hybrid seeds (Shokoufa-Pars), and seed coating with various amounts of fertilizer containing nutrients and growth stimulants of Fosnotron (12.62, 25.24 and 50.50 ml /kg seed), Aminol-forte (12.62, 25.24 and 50.50 ml /kg of seed), Humi-forte (12.62, 25.24 and 50.50 ml /kg of seed) and Humica (10, 20 and 30 ml /kg of seed), which contains 12 treatments, were treated with a control (no cover-up) were the experimental factors. The results showed that seed washing reduced the difference between hybrids in terms of time to 90 % emergence and both hybrids grew simultaneously and faster. Seed coating with Humica increased the percentage of plant establishment in both hybrids. Seed treatment with Fosnotron had the lowest percentage of plant establishment compared to other treatments. The results of this study showed that seed coating after seed washing increased the effectiveness of sugar beet seed coating. So, the percentage of plant establishment in all treatments of seed coating after seed washing treatment was significantly higher than that of seed coating without washing. Dry weight of leaf was higher in all seed treatments other than seed coating with Fosnotron (50.50 ml / kg seed) compared to control treatment. Among treatments, seed coating with Humica (30 ml / kg seed) with dry leaf weight of 19.89 g had the highest leaf dry weight. Among different treatments, Seed coating with Humica and Aminole-Forte in Pars hybrid and after seed washing had the highest root dry weight. In this study, maximum chlorophyll index and quantum function of Photosystem II at 30 ml Humeika per kg of seed were observed.