Displaying 1 - 6 of 6
Komarek
[no description entered]
Type: Document
Year: 1975
Sommer, Brown, Kormanik
Embryos of longleaf (Pinus palustris Mill.) were induced to form numerous adventitious buds along their cotyledons when placed in culture on chemically defined nutrient media. The buds when excised and transferred to other media form roots and…
Type: Document
Year: 1975
Fridborg, Eriksson
[no description entered]
Type: Document
Year: 1975
Jordan
Zinc ores have been smelted in Palmerton, Pennsylvania, since 1898. Within 2 km of the primary smelter, up to 8% Zn, 1500 ppm Cd, 1200 ppm Cu and 1100 ppm Pb by weight were found at the surface of the A soil horizon. Washed, oven-dried foliage of…
Type: Document
Year: 1975
Bertrand, Baird
A summary of sociological research that was conducted during the past 10 years finds that forest incendiarism in the South persists because of cultural attitudes that are deeply ingrained in residents of high fire areas. Prevention programs must…
Type: Document
Year: 1975
Widden, Parkinson
The effects of forest fires on the soil mycotlora were investigated in a Pinus contorta forest in Alberta, where it was found that species of Trichoderma and Penicillium were reduced in the burned plot, whereas Gelasinospora sp occurred only in the…
Type: Document
Year: 1975