Publication Date
1985
Location
Kyoto Japan
Description
Energy flow from sun to grazing animals, especially the functions of cellular contents (CC) and cell wall (CW) in this regard, was examined at the Fujinita Experimental Grazing Pasture of the National Grassland Research Institute, Tochigi which is situated at 36 °55'N and 136 °58 E, with a mean annual air-temperature of 12.3 °C and mean annual rainfall 1631 mm. Grazing experiments were conducted under two different nitrogen application regimes in 1983 and 1984. The net primary production was 53 and 33 Mkcal/ha/yr for plot of high (HN) and low (LN) nitrogen applications, respectively. Dry matter of the standing crop was greater in the HN plot than in the LN plot, and was higher in May and June than in other months. The amounts of energy in CC and CW were greater in the HN plot than in the LN plot, and the energy in CW was greater than in CC at both N application levels. The highest CW energy figure was recorded as 17 Mkcal/ha and for CC it was 10 Mkcal/ha in the HN plot during May. The highest CW percentage was 64.7 in the HN plot during June and 68 .6 in the LN plot during August. Total energy passed through the CC and the CW of aboveground plant parts was greater in the HN plot (20 and37 Mkcal/ha/yr for CC and CW, respectively) than in LN plot (14 and3 0 Mkcal/ha/yr, respectively), and the CC:CW ratio was higher in the HN plot (0.54) than in the LN plot (0.45 ). Energy of CC and CW grazed by cattle was greater in the HN plot than in LN plot, but the CC:CW ratio was lower in the HN plot (0.44) than in the LN plot (0.5 0).
Citation
Koyama, N; Tsuiki, M; and Shiyomi, M, "Energy Flow Through Cell Wall and Cellular Contents of Plants on Grazing Pasture" (1985). IGC Proceedings (1985-2023). 91.
(URL: https://uknowledge.uky.edu/igc/1985/ses6/91)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Energy Flow Through Cell Wall and Cellular Contents of Plants on Grazing Pasture
Kyoto Japan
Energy flow from sun to grazing animals, especially the functions of cellular contents (CC) and cell wall (CW) in this regard, was examined at the Fujinita Experimental Grazing Pasture of the National Grassland Research Institute, Tochigi which is situated at 36 °55'N and 136 °58 E, with a mean annual air-temperature of 12.3 °C and mean annual rainfall 1631 mm. Grazing experiments were conducted under two different nitrogen application regimes in 1983 and 1984. The net primary production was 53 and 33 Mkcal/ha/yr for plot of high (HN) and low (LN) nitrogen applications, respectively. Dry matter of the standing crop was greater in the HN plot than in the LN plot, and was higher in May and June than in other months. The amounts of energy in CC and CW were greater in the HN plot than in the LN plot, and the energy in CW was greater than in CC at both N application levels. The highest CW energy figure was recorded as 17 Mkcal/ha and for CC it was 10 Mkcal/ha in the HN plot during May. The highest CW percentage was 64.7 in the HN plot during June and 68 .6 in the LN plot during August. Total energy passed through the CC and the CW of aboveground plant parts was greater in the HN plot (20 and37 Mkcal/ha/yr for CC and CW, respectively) than in LN plot (14 and3 0 Mkcal/ha/yr, respectively), and the CC:CW ratio was higher in the HN plot (0.54) than in the LN plot (0.45 ). Energy of CC and CW grazed by cattle was greater in the HN plot than in LN plot, but the CC:CW ratio was lower in the HN plot (0.44) than in the LN plot (0.5 0).
