Nutrient recovery from swine lagoon water by Spirodela punctata.

Spirodela punctata 7776, the best duckweed strain in total protein production selected from in vitro screening experiments with synthetic swine lagoon water medium was examined for N and P recovery. It has shown a capability to grow in and to remove N and P from synthetic swine lagoon water with high N (240 mg NH4 N/l) and P (31.0 mg PO4 P/l) levels.

In vitro adventitious shoot production inPaulownia.

In vitro adventitious shoot formation was examined in petioles and laminae ofPaulownia elongata, P. fortunei, andP. 'Henan 1'.