Publication Date
1985
Location
Kyoto Japan
Description
In order to clarify interspecific differences in sodium (Na) accumulation and requirement, the following grasses were grown in the nutrient solution with 0-40 ppm Na for 4 weeks; Panicum coloratum (Coloured guineagrass: abbr. as CG, Kabulabula grass: KB and Makarikari grass: MK), P.maximum (green panic: GP and Guineagrass: GG), P. dichotomiflorum (fall panic: FP), Chloris gayana (Rhodes grass: RG), Echinochloa care-galli (Jananese millet: JM), Eleusine coracana ( African millet: AM) and Sorghum vulgare (Sorghum: SG). The ability to accumulate Na in shoots was ranked in the following order; KB and RG: high, GP and MK: intermediate, CG, GG, JM, FP and AM: low, and SG: poor. Dry weight of MK, CG, FP, KB, RG and JM remarkably increased with increasing medium Na concentration, while SG appeared not to respond to Na. Several solution experiments were carried out to analyze the above-mentioned results. The major results are as follows; (1): KB, RG and GP preferentially absorbed Na over water from the nutrient solution with 1 mM NaCl and their excised i:oots also showed high ability to absorb Na. The roots of RG condensed Na into the xylem saps. (2): KB, JM and FP grown without Na supply showed lower chlorophyll concentration and higher amount of free amino acids in the leaves. Based on the results obtained, the mechanisms of Na accumulation and a possible physiological role of Na in the plants were discussed.
Citation
Ando, T; Masaoka, Y; and Matsumoto, K, "Interspecific Differences in Sodium Nutrition Among Tropical Grasses" (1985). IGC Proceedings (1985-2023). 6.
(URL: https://uknowledge.uky.edu/igc/1985/ses6/6)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Interspecific Differences in Sodium Nutrition Among Tropical Grasses
Kyoto Japan
In order to clarify interspecific differences in sodium (Na) accumulation and requirement, the following grasses were grown in the nutrient solution with 0-40 ppm Na for 4 weeks; Panicum coloratum (Coloured guineagrass: abbr. as CG, Kabulabula grass: KB and Makarikari grass: MK), P.maximum (green panic: GP and Guineagrass: GG), P. dichotomiflorum (fall panic: FP), Chloris gayana (Rhodes grass: RG), Echinochloa care-galli (Jananese millet: JM), Eleusine coracana ( African millet: AM) and Sorghum vulgare (Sorghum: SG). The ability to accumulate Na in shoots was ranked in the following order; KB and RG: high, GP and MK: intermediate, CG, GG, JM, FP and AM: low, and SG: poor. Dry weight of MK, CG, FP, KB, RG and JM remarkably increased with increasing medium Na concentration, while SG appeared not to respond to Na. Several solution experiments were carried out to analyze the above-mentioned results. The major results are as follows; (1): KB, RG and GP preferentially absorbed Na over water from the nutrient solution with 1 mM NaCl and their excised i:oots also showed high ability to absorb Na. The roots of RG condensed Na into the xylem saps. (2): KB, JM and FP grown without Na supply showed lower chlorophyll concentration and higher amount of free amino acids in the leaves. Based on the results obtained, the mechanisms of Na accumulation and a possible physiological role of Na in the plants were discussed.
