Pengaruh Macam Bahan Seed Coating terhadap Viabilitas dan Vigor Benih Padi

Abstract
Low rice production can be caused by limited supply of high quality seeds. Physiological quality criteria of seeds can be seen from the value of viability and vigor of seeds. One effort that can be made to maintain or improve seed quality is seed coating technology. The research was carried out from November 2021 to January 2022 at the Technical Implementation Unit (UPT) for the Development by Rice and Palawija Seeds, Malang Regency, East Java. The experiment used a completely randomized design with four replications. Seed coating treatment consisted of (1) seeds without coating (control); (2) CMC 1,5% + liquid smoke 0,5% + CaCO3 8 g + gypsum 32 g; (3) CMC 1,5% + liquid smoke 0,5% + CaCO3 8 g + talc 32 g; (4) CMC 1,5% + 0,5% liquid smoke + 8 g CaCO3 + 32 g zeolite; (5) CMC 1,5% + liquid smoke 0,5% + CaCO3 8 g + dolomite 32 g; (6) CMC 1,5% + liquid smoke 0,5% + CaCO3 8 g + quicklime 32 g; and (7) CMC 1,5% + liquid smoke 0,5% + CaCO3 8 g + pumice 32 g. The results showed that the seed coating material CMC 1,5% + 0,5% liquid smoke + CaCO3 8 g + gypsum 32 g was the best treatment that was able to increase germination and maintain the vigor index of rice seeds. This treatment significantly maintained seed germination at 100% with a vigor index of 72,5%.