Study of Morphology and Physiology of Rice Seed IR Variety 42 (Oryza Sativa L) against aged moving with the SRI (The System of Rice Intensification) Method

Abstract

Germination is one of the main processes in plant development, where the age of seedling greatly influences the success of the process. The purpose of this study was to determine the morphological and physiological changes of rice seeds in various seedling transplants in the SRI method. The study began from September to October 2018 at the Andalas University Seed and Plant Physiology Laboratory and the Agricultural Product Technology Laboratory of the Andalas University. This study uses a Completely Randomized Design, where the treatments are 0 days of seedlings, 7 days of seedlings and 14 days of seedlings. The difference in radicle length and grain weight difference for each age moved by IR 42 seedlings SRI method.moving seeds can change the morphology of seeds from seed that looks dull marked by the presence of brown spots becoming fresh, shiny, but there are still a few brown spots. Changes in physiology of the age of IR 42 seedlings moving SRI method, the changes that occur is a decrease in the protein content of seedling age 0 days and 7 days after germination from 2.2181% to 0.8356% for four times the analysis process was carried out and the age of seedling 7 days after germination from 1.303% to 1.2588% for two times the analysis process was carried out, then there was a decrease in the content of starch analysis of seedling age 0 days and 7 days after germination from 15.4546% to 10.2812% for four times the analysis process carried out and the age of seedling transplants 7 days after germination from 11.9816% to 7.6806% for two times the analysis process was carried out, then there was a decrease in sugar content analysis of seedling age 0 days and 7 days after germination from 0.0771% to 0% for three times the analysis process was carried out and the age of seedling 7 days after germination was 0%.