(a)Organic production environment construction and technology research and development for seeds of grain crops

▲Fig.1. The organic yield related agronomic traits performance of soybean varieties tested (Tainan No. 3).

▲Fig.2. The organic yield related agronomic traits performance of soybean varieties tested (Kaoshiung S. No. 10).

(b)Development and research of organic seed preparation technology

(c)Study on field certification and management model of organic seed production

▲Fig.3. With adjustment of seed processing flow,  the process of organic upland crop seed processing and storage was completed.

▲Fig.4. The seed which had been processed was tested for pesticide residue respectively, and all of the results showed that pesticide residue was not found.

(d)Development and research for disinfection techniques on seed-borne pathogens of seeds for organic agriculture

The goal of this study is to develop a disinfection technique for soybean by using legal preservatives. The soybean seeds ‘Kaohsiung SEL. 10’ contaminated by Cercospora kikuchii (Cki) were used to do disinfection tests by using calcium propionate, potassium sorbate, sodium benzoate and sodium anisate. The results showed that 0.3% solutions of sodium benzoate and potassium sorbate individually could obviously inhibit growth of Cki but the solutions with more than 0.3% sodium benzoate or potassium sorbate would inhibit soybean seeds germination. The effect of sodium anisate was weaker than the other three preservatives but it did not inhibit soybean seed germination in the test concentration range.

▲Fig.5.

▲Fig.6

(e)Construction and production environment for new varieties of multigranin seeds

▲Fig.7 Soybean origin in akizaku of 109

▲Fig.8 Poding of Mino black beans in akizaku of 109