Iranian Biology Society Journal of Plant Research (Iranian Journal of Biology) 2383-2592 28 5 2016 02 20 Effects of priming by salicylic acid on nutrient elements concentration and distribution in different parts of wheat spike under late sowing condition Effects of priming by salicylic acid on nutrient elements concentration and distribution in different parts of wheat spike under late sowing condition 1054 1065 739 FA Journal Article 2013 09 21 The Effects of priming by different levels of salicylic acid (SA) and sowing dates on nutrient elements concentration and distribution in the parts of wheat spike, cv. Alvand, was investigated under field conditions. The factors were including seven levels of priming by SA (0, 400, 800, 1200, 1600, 2000 and 2400 µM), two sowing dates including conventional sowing date (23 October) and late sowing (22 November) and spike parts (Above, Middle and Below) was evaluated. Results showed that interaction between sowing dates, SA and spike different parts were significant on all elements. Salicylic acid improved amount of macro and micro nutrients, especially in the upper and middle parts of spike. Among the priming levels, 400 µM concentration of SA had highest values than other primed levels and control treatment on nutrient elements. It seems that the central section seeds of spike due to greater speed and duration of grain filling showed higher nutrient elements concentration. The highest concentration of nitrogen, phosphor, iron and manganese was found in middle part of spike. But, the highest value for copper observed in upper part and for potassium in lower part of spike. Generally, wheat seed priming with salicylic acid increased concentration of macro and micro nutrients elements, especially in the upper and middle parts of spike. The Effects of priming by different levels of salicylic acid (SA) and sowing dates on nutrient elements concentration and distribution in the parts of wheat spike, cv. Alvand, was investigated under field conditions. The factors were including seven levels of priming by SA (0, 400, 800, 1200, 1600, 2000 and 2400 µM), two sowing dates including conventional sowing date (23 October) and late sowing (22 November) and spike parts (Above, Middle and Below) was evaluated. Results showed that interaction between sowing dates, SA and spike different parts were significant on all elements. Salicylic acid improved amount of macro and micro nutrients, especially in the upper and middle parts of spike. Among the priming levels, 400 µM concentration of SA had highest values than other primed levels and control treatment on nutrient elements. It seems that the central section seeds of spike due to greater speed and duration of grain filling showed higher nutrient elements concentration. The highest concentration of nitrogen, phosphor, iron and manganese was found in middle part of spike. But, the highest value for copper observed in upper part and for potassium in lower part of spike. Generally, wheat seed priming with salicylic acid increased concentration of macro and micro nutrients elements, especially in the upper and middle parts of spike. https://plant.ijbio.ir/article_739_df263d996281d984952c07998dc54358.pdf