The influence of the laser light on yield and seed quality of amaranth (Amaranthus cruentus L.)
Krzysztof Klimont
k.klimont@ihar.edu.plKrajowe Centrum Roślinnych Zasobów Genowych, Instytut Hodowli i Aklimatyzacji Roślin, Radzików (Poland)
Abstract
The effect of laser light on the seed yield and elements of yield structure, as well as on the sowing value of amaranth seeds, cultivar Rawa, was studied in 1998–2000. Before sowing, seeds were biostimulated with red laser light (He-Ne), of 632,8 nm wave length and the power of 4 mW/cm2. Three irradiations variants double, fourfold and sixfold and control were evaluated. In the laboratory tests, before sowing, seed germination was determined, and after harvest — seed germination and protein content. In the field experiments the following parameters were determined: field emergence, seed yield and its structure (plant height, weight of green mass and weight of thousand seeds). All variants of pre-sowing irradiation of amaranth seeds favourably influenced the seed yield. The highest yield was obtained after sixfold dose, lower yield after double dose, and the lowest after fourfold dose of laser energy. The height of plants grown from irradiated seeds and weight of green mass/plant did not differ in comparison to control, but these traits were influenced by weather conditions. Pre-sowing biostimulation of amaranth seed influenced field emergence, weight of thousand seeds and protein content in seeds harvested from plants grown from irradiated seeds.
Supporting Agencies
Keywords:
pre-sowing biostimulation, laser, amaranth, seed sowing value, yieldReferences
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Authors
Krzysztof Klimontk.klimont@ihar.edu.pl
Krajowe Centrum Roślinnych Zasobów Genowych, Instytut Hodowli i Aklimatyzacji Roślin, Radzików Poland
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