The Effect of Different Concentrations of Major Element’s Foliar Application on Resistance to Lodging and Morphological Traits of Rice Cultivars (Shirudi and Hashemi Tarom)

In the crop year of 2013, a test was conducted on farm of Rice Research Institute of country - Deputy of Mazandaran - Amol, to investigate the foliar application effect of Nitrogen and Potassium major elements, on morphological and physiological traits of Shirudi and Hashemi rice cultivars. Objective: As two split plots based on randomized complete block design with three replications. The main element consists of two Hashemi Tarom and Shirudi cultivars, and the subsidiary element is the number of foliar application and the subsidiary- subsidiary element is the recommended and altered Concentration. Result: The result of variance analysis showed that the cultivar effect was significant on traits of plant height within 45 days after transplanting, plant height at the time of attendance, the number of tillers and resistance to Lodging. Hashemi Tarom obtained the highest plant height within 45 days after transplant and attendance time, but Shirudi cultivar obtained the maximum number of tillers at the time of attendance and resistance to Lodging. Also the effect of Concentration was significant only on feature of plant height within 45 days after transplanting and resistance to Lodging. Comparison of average cultivars showed that Shirudi cultivar with the yield of 6666.1 (kg.h-1) was more than Hashemi Tarom cultivar with the average yield of 3939.4 kg per hectare. Also the highest yield of grain (5331.2 kg.h-1) obtained from altered Concentration and its lowest (4933.3 kg.h-1) obtained from evidence Concentration, affected by different Concentration of foliar application. Conclusion: Based on the results of this research, two steps of foliar application with two percent of nitrogen Concentration and five thousand of potash in the mid-tillering steps and young cluster appearance, for Shirudi cultivar and two steps of foliar application asthe amount of four percent of nitrogen and one percent of potash, for Hashemi Tarom, havehad a significant and positive impact compared with the treatment, without foliar application in the resistance to Lodging and increases the chlorophyll amount, increases the height and reduces the percentage of hollow grain.

Concentration-Major Element-Foliar Application -Resistance to Lodging