Side-Effects of SCB Liquid Fertilizer on Seed Germination and Physiological Activity of Pinus densiflora and Maackia amurensis Seedling
2009
Han, S.H., Korea Forest Research Institute, Suwon, Republic of Korea | Kim, D.H., Korea Forest Research Institute, Suwon, Republic of Korea | Kim, H.S., Korea Forest Research Institute, Suwon, Republic of Korea | Yoo, S.K., Korea Forest Seed and Variety Center, Korea Forest Service, Chungju, Republic of Korea | Kim, P.G., Kyungpook National University, Sangju, Republic of Korea
This study was carried out to investigate the effects of SCB (Slurry Composting and Biofiltration) liquid fertilizer on seed germination properties and physiological activities of P. densiflora and M. amurensis seedling on the sand and tailing soil. Seed germination of two, tree species on the sand and tailing soil was delayed and inhibited under SCB treatment. Seedling growth of two species was also reduced by SCB application, and the growth reduction was associated with its concentration. Chlorophyll content decreased in the leaves of SCB-treated P. densiflora but increased in the leaves of SCB-treated M. amurensis when compared to control seedlings irrigated with tap water. On the other hand, Malondialdehyde (MDA) content, an indicator of lipid peroxidation, decreased in the leaves of SCB-treated P. densiflora, whereas it increased in the leaves of SCB-treated M. amurensis. Antioxidative enzyme activities in the leaves of P. densiflora increased on sand soil treated with 1/6 diluted SCB solution and on tailing soil treated with 1/3 diluted one, whereas those of M. amurensis seedlings increased only on tailing soil applied with the normal SCB solution and the 1/3 diluted SCB solution, respectively. These results were considered as side-effects of SCB liquid fertilizer which might accumulate salt through the physical changes in the soil.
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