Germination responses of local lowland rice variety Sirandah Kuning to application of some Trichoderma strain

Abstract

Increasing rice production through intensification of the energy input in the form of chemical fertilizers and pesticides has adverse impact to the environment and health. Recognizing this, the government has launched the practice of organic farming rice intensification system, known as SRI. Besides using organic inputs, components other SRI is transplanting at a young age and the planting of one bar. The last two components found no problems to be practiced on improved varieties. Because growth is relatively fast. Instead, the application of SRI on local varieties are growing relatively slower obstacles if it is moved at a young age. In connection with this, studies have been conducted to increase the growth rate of local varieties of paddy seeds in the germination period, especially with the help of some strains of indigenous Trichoderma. The study was conducted from October to November 2017 in the Laboratory of Microbiology Department of Biology, Universitas Negeri Padang. A randomized block design was used in this study with 6 treatments and 4 replications. The data were processed by analysis of variance and a further test Duncant's. The results showed that the five strains Trichoderma did not affect the germination percentage. Tu is the best strain because it can increase the rate of germination and seed vigor index of rice significantly, whereas Trichoderma asperillum (Ta) only affect the vigor index significantly.