Application of Invigoration Technique in Order to Improve Seed

Seed is a component of production that contributes to increasing the national rice production. The use of low-quality seeds compared with production costs, non-uniform plant growth, yield reduction, and yield quality. One effort to improve the quality of seed vigor is through invigoration treatment. Invigoration technique among other hydration, thermal treatment, and coating. The hydration method is a water absorption system in seeds. Uncontrolled absorption (hydro-priming), by soaking and drying the seeds, hardening, on-farm priming, soaking for a certain period. The controlled system (osmo-priming) by immersing in osmotic solution, osmo-hardening (integration of hardening and osmo-priming), matri-priming with moist solid media, humidifications (with high humidity), and hormonal priming (with hormones. The second method is by temperature treatment, including by cooling and heating. The third technique is the coating treatment, namely coating the seeds. Hydration system hydro-priming for 30 hours can break seed dormancy with normal germination capacity of 91.3-99.3% in Memberamo, Cipunagara, and Maros varieties. The hardening technique is effective in increasing the germination of hybrid rice seeds for 12 hours with 2 cycles and for 24 hours with one cycle. The osmo-priming technique of soaking seeds in a 10 ppm GA3 solution or a mixture of 10 ppm GA3 + 15 ppm kinetin was effective in increasing the vigor of hybrid rice seeds. The matri-priming technique with rubbing ash as a medium plus the addition of 50 µ m GA3 was effective in breaking dormancy of the Membramo, Cipunagara, and Maros varieties of rice. It is can be applied, especially by small farmers.