Effect of iron, manganese and boron micronutrients on some morphological and quantitative characteristics of sugar beet seed

. In order to influence the micronutrient elements on sugar beet seed, an experiment was conducted in a randomized complete block design with four replications of Ardebil Agricultural Research Station. The treatments consisted of the lack of spraying (control) and spraying with iron, manganese, boron, iron and manganese, iron and boron, boron, manganese and iron, manganese and boron. Each plot consisted of six planting lines with a length of 6 meters and a spacing of 65 centimeters. Seed roots were planted with 50 × 65 cm arrangement (plant density of 3.08 plants /m2). The results of the experiment showed that the effect of treatments on dry weight of branch and dry weight of the whole seed was significant at 1% probability level. Comparison of the averages showed that the fertilizer combination of 4 in 1000 (boron and manganese) in morphological traits was superior to other fertilizer compounds. Also, the effect of micronutrient treatment on seed weight was higher than standard size and seed weight higher than 4.5 mm at 1% probability level. Among the compounds used, the fertilizer combination of 4 in 1000 (Iron and boron) was superior to other fertilizers in terms of traits related to seed traits in addition to increasing the above mentioned traits, weight loss was less effective than control. Therefore, these two combinations of fertilizers (Iron+boron and Boron+ Manganese)are recommended as the best fertilizer levels for achieving high yield.