The Effect of Humi Potas and Potassium Sulfate on some Biochemical Characteristics and Durability of Wallflower (Matthiola incana var. Annua)

The present research project was aimed to study the effect of humi potas organic fertilizer and potassium sulfate fertilizer on biochemical characteristics and durability of wallflower. The study was conducted as a factorial experiment based on a randomized complete block design (RCBD) with three replications in shahid Chamran University in Ahvaz, during the year 2014. Treatments include Humi potas fertilizer in 3 levels (zero, 500 and 1000ppm) and potassium sulfate fertilizer in 3 levels (zero, 50 and 100kg per ha). Biochemical traits (chlorophyll a, chlorophyll b, total chlorophyll, carotenoids, potassium and calcium in the plant, organic matter content and percentage of ash) and flower life index were evaluated. Results, showed significant differences when humi potas was used in all traits with the exception of organic matter content and percentage of ash, while with potassium sulfate treatment all traits except for the potassium and flower life. The highest percentage of ash, potassium and pigments were observed with 1000ppm humi potas treatment and the highest percentage of organic matter otained under different levels of potassium sulfate. It was also observed the highest levels of calcium and flower life in the interaction 1000ppm humi potas and 100kg of potassium sulfate. In general, according to the results, the combination of 1000ppm humi potas and 100kg per ha potassium sulfate improved biochemical characteristics and durability of wallflower.